What Are the Application Areas and Characteristics of Pure Tungsten Sheets?

Pure tungsten sheets, known for their superior physical and chemical properties, are widely used across various industrial fields. Below are the main application areas and characteristics:

1. Electronics Industry

Tungsten sheets are indispensable materials in the electronics industry, extensively used in the production of vacuum electronic devices such as cathodes, electrodes, and thermionic emitters. Their excellent electrical conductivity and oxidation resistance enable them to remain stable under high-temperature and high-vacuum conditions. Additionally, W sheets are employed in the semiconductor industry, particularly in MOCVD (Metal-Organic Chemical Vapor Deposition) equipment, serving as support components or heat dissipation parts to ensure reliable operation in high-temperature environments.

2. Aerospace Sector

In the aerospace sector, W sheets are valued for their exceptional high-temperature resistance and radiation shielding capabilities. They are used in the manufacture of thermal protection components for rocket nozzles and missile exhaust systems. Their high density and strength also make them suitable as counterweights in inertial navigation systems, enhancing system stability and accuracy.

3. Power and Energy Industry

Pure tungsten sheets are widely used to manufacture reflective screens and heating elements in high-temperature furnaces. Their strength and oxidation resistance at elevated temperatures make them ideal for critical components in the nuclear industry, such as control rods and shielding materials for reactors. Additionally, they are used in core components of fuel cells and thermoelectric conversion devices.

4. Medical Equipment

In the medical field, W sheets are utilized to fabricate radiation shielding devices and key components in X-ray imaging equipment. Their high density and excellent radiation absorption properties make them ideal for protective equipment, such as shielding plates used in radiotherapy.

5. Photovoltaic and Laser Industries

In the photovoltaic and laser industries, tungsten sheets are employed as high-temperature evaporation boats and laser reflectors. Their high melting point and low vapor pressure ensure stability in extreme thermal conditions, making them suitable for demanding production environments.

6. Precision Instruments

Pure tungsten sheets are commonly used as counterweights or inertial mass components in high-precision mechanical instruments. Their high density and machinability make them essential materials for navigation devices in maritime, aerospace, and other applications.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply tungsten products in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of tungsten sheets, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

What Are Challenges Faced in Processing Pure Tungsten Sheets?

Pure tungsten sheets are known for their exceptional physical and chemical properties, including a high melting point (3410°C), high density, excellent thermal and electrical conductivity, and remarkable resistance to high temperatures. While these properties make tungsten a valuable material for various industrial applications, they also pose significant challenges during its processing. Below are the primary difficulties encountered in processing tungsten sheets:

1. High Melting Point and Hardness

Tungsten's extremely high melting point and intrinsic hardness make it difficult to machine and shape. Conventional cutting and forming tools tend to wear out quickly, and advanced techniques such as laser cutting or EDM (Electrical Discharge Machining) are often required. However, these methods increase production costs and require specialized equipment.

2. Brittleness at Room Temperature

While tungsten exhibits excellent strength at high temperatures, it is brittle at room temperature. This brittleness can lead to cracking or breaking during mechanical processing, such as rolling, bending, or punching. Special care must be taken to avoid stress concentrations, and intermediate annealing is often necessary to relieve internal stresses during processing.

3. High Density and Weight

Tungsten’s high density makes it challenging to handle during processing. Equipment needs to be robust enough to accommodate the material's weight, and careful design considerations are required to ensure uniformity in thickness and dimensions.

4. Poor Weldability

Welding pure tungsten is difficult due to its high melting point and sensitivity to impurities. The presence of oxygen, carbon, or other contaminants can degrade the weld quality and lead to porosity or cracking. Vacuum or inert gas environments are typically required for successful welding, adding complexity to the process.

5. Surface Finish and Precision Requirements

Pure tungsten sheets are often used in applications requiring high precision and smooth surface finishes, such as electronics or medical devices. Achieving these standards is challenging because of tungsten’s tendency to develop microcracks or rough edges during machining. Polishing and finishing processes require extra effort and time.

6. Oxidation During High-Temperature Processing

When processed at high temperatures, tungsten is prone to oxidation, forming tungsten oxides that can compromise the material’s properties. Protective atmospheres, such as inert gases or vacuum, are necessary to mitigate oxidation, increasing processing complexity and cost.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply tungsten products in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of tungsten sheets, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Tungsten Plate Price in Early December 2024

3.5x96x560mm tungsten plate price is 510.00 USD/PC in the first half of December 2024, EXW XIAMEN, CHINA. 

Tungsten plates can be as thin as 0.01mm or as thick as 127mm, with widths typically ranging from 10mm to 800mm. They can be used in many different applications and is valued for its corrosion resistance, ability to withstand extremely high temperatures, and ability to create rigidity and hardness when combined with other metals in the alloy.

Tungsten is used in the aerospace, research, building materials and light bulb industries. It is the predominant metal in electric furnace heating elements, as well as in any assembly where high pressure/high temperature environments are expected. Plates made of tungsten are commonly used in furnace construction, but are also important for making parts for the electronics and semiconductor industries, and can be found in a variety of lighting, vacuum plating, electronic vacuums and shielding.

If you have any inquiry of tungsten plates, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Lanthanated Tungsten Electrode Price in Early December 2024

Ø3.2x175mm lanthanated tungsten electrode price is 2.20 USD/PC in the first half of December 2024, EXW XIAMEN, CHINA.

WL20 electrodes contain at least 1.7% to 2.2% lanthanum for excellent arc starting, low burnout rate, good arc stability and excellent re-ignition characteristics. They are ideal if you want to optimize your welding capabilities. They can work well on either AC or DC electrode negatives with tips, or they can be used with AC sine wave power supplies. The tungsten electrode adding with rare earth element lanthanum holds sharp tips well, which is an advantage for welding steel and stainless steel on DC or AC from square wave power sources.

If you have any inquiry of tungsten electrodes, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

What Factors Contribute to the Durability and Longevity of Strand Tungsten Filaments?

The durability and longevity of strand tungsten filaments in high-temperature environments are influenced by several key factors that determine their ability to withstand extreme heat, mechanical stress, and chemical reactions. Below are the primary factors that contribute to the performance and lifespan of tungsten filaments in such conditions:

1. High Melting Point of Tungsten

Tungsten has one of the highest melting points of any metal, at 3422°C (6192°F). This intrinsic property makes tungsten filaments exceptionally durable at high temperatures. In environments where other metals would melt or degrade, tungsten maintains its structural integrity, allowing it to operate for extended periods without failure.

2. Tungsten's Thermal Conductivity

Tungsten possesses excellent thermal conductivity, meaning it can dissipate heat efficiently across its surface. This property helps prevent localized overheating, which can lead to thermal degradation, cracking, or melting in the filament.

3. Oxidation Resistance

In high-temperature environments, materials are often exposed to oxygen, which can cause oxidation and degradation of the filament. Tungsten naturally has a low tendency to oxidize at moderate temperatures, but at extremely high temperatures, tungsten can form tungsten oxide (WO₃), which can weaken the filament. To mitigate this, tungsten filaments are often coated with materials like hafnium or tantalum to improve their resistance to oxidation.

4. Tensile Strength and Mechanical Integrity

Tungsten filaments are often subjected to mechanical stresses, especially in applications that involve vibration, expansion, or compression. Tungsten's high tensile strength and resilience to deformation under heat contribute to its ability to withstand mechanical forces over time. The drawing process, where tungsten is pulled into fine wires, also enhances its strength by aligning the tungsten grains.

5. Thermal Expansion Characteristics

Tungsten has a relatively low coefficient of thermal expansion (CTE), meaning that it does not expand or contract significantly when exposed to temperature fluctuations. This property is crucial because large thermal expansion can cause material fatigue, cracking, or failure.

6. Filament Purity

The purity of the tungsten used in filament manufacturing significantly affects its performance in high-temperature environments. Impurities in the tungsten can create weak points in the filament, leading to localized failures or premature degradation.

7. Electron Emission and Evaporation Resistance

In applications like electron microscopy or cathode ray tubes, tungsten filaments are often subjected to electron bombardment. While tungsten has a high work function (the energy required to release electrons), it can still suffer from electron-induced evaporation at high temperatures. However, in many cases, a surface coating or special filament treatment helps to reduce this effect.

8. Filament Geometry and Design

The design of the tungsten filament, including its diameter, length, and surface area, plays a role in its heat distribution and mechanical stress distribution. Thinner filaments tend to heat up faster and may degrade more quickly, while thicker filaments can handle heat more evenly but may require more energy to operate.

9. Manufacturing Process

The manufacturing processes used to create tungsten filaments—such as sintering, wire drawing, and heat treatment—are critical in defining the material's microstructure. The process affects the grain size and internal stresses within the filament, both of which can impact its performance under high temperatures.

Conclusion

The durability and longevity of strand tungsten filaments in high-temperature environments are primarily determined by tungsten's inherent properties (high melting point, low thermal expansion, oxidation resistance) as well as how the filament is manufactured, treated, and protected. By optimizing factors such as filament purity, geometry, surface treatments, and manufacturing processes, manufacturers can produce tungsten filaments that perform reliably and maintain their structural integrity over long periods, even under extreme conditions. This makes tungsten filaments indispensable in applications like lighting, electronics, aerospace, and scientific instrumentation.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply tungsten filament in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of strand tungsten filaments, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

How Does Manufacturing Process of Strand Tungsten Filaments Impact Their Properties?

The manufacturing process of strand tungsten filaments involves several key steps, each of which significantly influences the filament's final properties, such as its strength, conductivity, and heat resistance. Below is a typical process for manufacturing tungsten filaments and how each stage impacts the properties of the filaments:

1. Tungsten Powder Production

The first step in the process involves producing tungsten powder, which serves as the raw material for filament production. Tungsten is typically extracted from ores such as scheelite (CaWO₄) or wolframite (Fe, MnWO₄). These ores are chemically processed to produce ammonium paratungstate (APT), which is then reduced to pure tungsten powder. The purity and size of the tungsten powder are critical because finer powders allow for more uniform processing and a h.igher-quality finished filament.

2. Powder Compaction and Shaping

The tungsten powder is then compacted into a billet, usually by cold pressing. The powder is pressed into a mold under high pressure to form a solid shape. This is often followed by a sintering process, where the compacted powder is heated at a high temperature in a controlled atmosphere to increase its density and bond the powder particles together without reaching the melting point of tungsten.

3. Wire Drawing

After sintering, the tungsten material is heated and drawn into fine wires through a wire-drawing process. Tungsten is drawn through a series of progressively smaller dies to reduce its diameter to the desired thickness. This process requires high temperatures to reduce the material’s resistance to deformation.

4. Heat Treatment (Annealing)

Once the filament has been drawn into its final shape, it undergoes annealing, a heat treatment process where the filament is heated to a high temperature in a controlled atmosphere. This process is used to relieve internal stresses, improve the mechanical properties, and ensure that the filament is free from defects such as cracks or brittleness.

5. Surface Treatment

The tungsten filaments are often coated or treated to enhance their performance. Common surface treatments include coating the filaments with hafnium or tantalum to improve their oxidation resistance and electron emission properties.

6. Final Inspection and Quality Control

After the filaments are manufactured, they undergo rigorous quality control to ensure they meet the required specifications. This may include testing for tensile strength, resistance to oxidation, and uniformity of diameter.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply tungsten filaments in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of strand tungsten filaments, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Molybdenum Electrode Price in Early December 2024

 Ø60x650mm molybdenum electrode price is 1,350.00 USD/PC in the first half of December 2024. This kind of electrode has been widely used in glass melting for many years. 

The electrode made of molybdenum has good advantages of high melting point, high strength and hardness at high temperature, as well as good electrical and thermal conductivity and good corrosion resistance. The use of moly electrodes to replace the original heavy oil and gas energy can effectively reduce environmental pollution and improve the quality of glass. Molybdenum electrode rod is a kind of molybdenum electrode product, its surface is bright gray metallic luster with density more than 10.15g/cm3. They are mainly used for electric glass furnaces, electric light sources and electric vacuum parts.

If you have any inquiry of molybdenum electrode, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Cu/Mo/Cu Carrier Price in Early December 2024

16x11x0.5mm Cu/Mo/Cu carrier price is 4.50 USD/PC in the first half of December 2024. These carriers are mainly used in radio frequency, microwave and semiconductor high-power devices, carriers, lead frames, low-expansion layers and heat conduction channels of multilayer printed circuit boards (PCBs).

Cu/Mo/Cu carrier (CMC) is a composite material with a similar sandwich structure, the core material is molybdenum, and both sides are covered with copper. The basic concept of the design is to use the high thermal conductivity of copper and the low thermal expansion characteristics of molybdenum. By adjusting the thickness ratio of copper, molybdenum and copper, it can achieve a thermal expansion coefficient matching ceramic materials and semiconductor materials, and a higher thermal conductivity. The expansion coefficient and thermal conductivity are designable.

The ideal carrier material should have a linear expansion coefficient CTE, which is basically matched with the chip, and has the highest possible thermal conductivity, especially the Z-direction (thickness) thermal conductivity, so that the heat of the packaged chip and other electronic devices can be quickly discharged. In order to increase its power density, achieve high power, reduce the volume and realize the miniaturization of the device. CMC material is now the one of the materials to meet above requirements.  

If you have any inquiry of CuMoCu carrier, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

The Role of Molybdenum Substrates in the Thin Film Deposition Industry

Molybdenum substrates have become a vital material in the thin film deposition industry due to their outstanding physical properties, which make them ideal for a range of applications, including semiconductor devices, solar cells, and coatings. Thin film deposition is a process used to deposit thin layers of material onto a substrate, and molybdenum plays a critical role in this process, particularly in industries where precision and durability are paramount.

One of the key benefits of using moly substrates in thin film deposition is their high thermal conductivity. Molybdenum has excellent heat dissipation properties, which is essential during the deposition process, especially in physical vapor deposition (PVD) and chemical vapor deposition (CVD). These processes can generate significant heat, and molybdenum’s ability to conduct and manage this heat ensures uniform film formation and prevents damage to both the substrate and the thin film itself.

In addition to its thermal properties, molybdenum’s high melting point (approximately 2620°C) makes it ideal for high-temperature deposition processes. This allows it to maintain stability and resist distortion or degradation during the formation of thin films, even in extreme conditions. As a result, molybdenum is often used as a base material in the deposition of metallic thin films and coatings, especially in applications where high-temperature stability is required.

Moly substrates are commonly used in the solar industry, especially for thin-film solar cells like CIGS (Copper Indium Gallium Selenide) solar cells. Molybdenum's ability to create strong adhesion with the thin film materials makes it an ideal choice for these applications, improving the efficiency and durability of solar cells.

Overall, molybdenum substrates are indispensable in the thin film deposition industry due to their high performance, durability, and ability to withstand harsh manufacturing conditions. These properties ensure that molybdenum continues to be a key material in the production of high-quality thin films across various industries.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply molybdenum in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of molybdenum substrates, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Molybdenum Substrates: A Key Pillar in Advancing Semiconductor Technology

Molybdenum substrates have become integral components in the semiconductor industry due to their superior physical properties and high thermal stability. Molybdenum, a transition metal known for its strength, thermal conductivity, and resistance to corrosion, plays a crucial role in various semiconductor manufacturing processes, particularly in the creation of advanced electronic devices.

One of the key applications of moly substrates is in the production of power semiconductors. Power semiconductors are essential in controlling and converting electrical power in devices such as power supplies, motor drives, and electric vehicles. Molybdenum's excellent thermal conductivity ensures that heat generated during power conversion is effectively dissipated, preventing damage to sensitive electronic components. This thermal management is vital for maintaining the reliability and longevity of power devices.

Another prominent use of moly substrates is in LEDs and photovoltaic devices. Molybdenum provides an ideal base for creating thin-film layers in these devices due to its high melting point and strong adhesion properties. In particular, molybdenum is often used as a back contact layer in CIGS (Copper Indium Gallium Selenide) solar cells. Its high temperature resistance and ability to form a stable bond with CIGS materials are essential for improving the efficiency and lifespan of solar cells.

Mo substrates also find applications in semiconductor packaging, where their mechanical strength and high resistance to thermal expansion make them ideal for holding delicate chips in place, reducing the risk of damage during manufacturing or operation.

Overall, molybdenum substrates are a crucial material in semiconductor technology, providing reliability, efficiency, and durability in various applications ranging from power electronics to renewable energy solutions. Their versatility and outstanding material properties ensure that they will continue to be a cornerstone in advancing semiconductor technology.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply molybdenum products in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of molybdenum substrates, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

What Are the Applications of Strand Tungsten Filaments in Modern Technology?

Strand tungsten filaments are critical components in various high-temperature and precision applications in modern technology. Due to tungsten's exceptional physical properties, such as its high melting point (over 3,400°C or 6,150°F), low vapor pressure, and resistance to oxidation, strand tungsten filaments are used in a wide range of industries. Below are some of the primary applications:

1. Incandescent Light Bulbs

The most common use of tungsten filaments is in incandescent light bulbs. When electricity passes through the filament, it heats up and emits light. Tungsten's high melting point allows it to withstand the intense heat generated without melting. The filament glows brightly while maintaining structural integrity, making it ideal for use in traditional light sources.

2. Electron Microscopy

In electron microscopes, tungsten filaments serve as electron emitters. When heated, tungsten filaments emit electrons that are used to form high-resolution images of samples at the microscopic level. Tungsten's stability at high temperatures and its ability to produce a fine, focused electron beam make it crucial for electron microscopy and other scientific instrumentation.

3. Vacuum Tubes and Cathode Ray Tubes (CRTs)

Tungsten filaments are used in vacuum tubes and cathode ray tubes (CRTs), which were common in older television and computer monitors. In these applications, tungsten filaments serve as electron emitters, similar to their use in electron microscopy, to create electron beams that are directed toward phosphor-coated screens to produce images.

4. X-ray Tubes

X-ray tubes use tungsten filaments as a cathode to generate electrons that strike a tungsten target, producing X-rays. The filament must be capable of enduring high temperatures, which is why tungsten's properties make it an ideal material for this application.

5. Heaters and High-Temperature Furnaces

Strand tungsten filaments are widely used as heating elements in high-temperature furnaces and industrial heating applications. Tungsten's ability to withstand extreme temperatures without degrading makes it essential for producing heat in environments such as metallurgy, materials science, and other high-heat industrial processes.

6. Specialized Aerospace and Military Applications

In aerospace and military technologies, tungsten filaments are used in radiation shielding and high-temperature sensors due to their resistance to high radiation and extreme heat. The filament’s durability under extreme stress is invaluable in these precision-driven fields.

7. Halogen Lamps

Halogen lamps (which are a type of incandescent light) also use tungsten filaments. These lamps operate in a halogen gas environment, which allows the filament to burn at higher temperatures and produce more light than traditional incandescent bulbs. The tungsten filament’s longevity and heat resistance are crucial for the efficiency and lifespan of halogen lamps.

8. Thermionic Emission Devices

Tungsten filaments are used in thermionic emission devices, such as certain types of vacuum tubes and electron guns, where electrons are emitted from the filament after it is heated to high temperatures. These devices are essential in various types of electron microscopy, particle accelerators, and even in the production of semiconductor devices.

9. Light-Emitting Diode (LED) Technology (as a Heating Element)

Though LEDs do not directly use tungsten filaments in the same way as incandescent bulbs, tungsten filaments are sometimes employed as heating elements in devices that enhance or simulate the properties of incandescent light, such as LED-based light fixtures that aim to replicate the warmth of traditional lighting.

10. Thermal Management in Electronics

Tungsten filaments are increasingly being used in thermal management systems in high-performance electronics. The filament’s ability to withstand high temperatures and its excellent thermal conductivity make it useful in dissipating heat from sensitive electronic components such as power transistors and microprocessors.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply strand tungsten filaments in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of strand tungsten filaments, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Strand Tungsten Filament: A Key Component in High-Temperature Applications

A strand tungsten filament is a thin, flexible wire made from tungsten, a chemical element known for its exceptional strength, high melting point, and resistance to heat. Tungsten, with an atomic number of 74, has the highest melting point of any metal—over 3,400°C (6,150°F)—making it ideal for use in applications where high temperatures are encountered.

The "strand" refers to the specific form of the tungsten filament, which is typically a fine wire made by drawing tungsten through a series of molds to reduce its diameter. This process allows the filament to be manufactured in a variety of sizes, from a fine, hair-like thickness to thicker, more robust strands, depending on the intended application. These strands are often used as heating elements, light bulb filaments, or in electron microscopy equipment.

One of the key features of the filament is its ability to withstand extreme temperatures without melting or degrading. This makes it an essential component in incandescent light bulbs, where the filament needs to glow brightly when heated by an electrical current. The filament’s resistance to oxidation also ensures a longer lifespan in these high-temperature environments.

In addition to lighting, tungsten filaments are used in applications such as electron microscopes, where the filament is heated to release electrons, and in various industrial heating processes. The flexibility of tungsten filaments allows them to be coiled or shaped into various configurations for specific needs.

The strength and durability of the tungsten filaments are further enhanced by their resistance to thermal expansion and their ability to maintain structural integrity under stress. These properties make strand tungsten filaments indispensable in technologies that demand precise control over heat and electrical resistance.

Strand tungsten filaments offer unparalleled performance in high-temperature applications due to their unique combination of heat resistance, durability, and versatility. They continue to be essential in a wide range of industries, from lighting to electronics.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply strand tungsten filaments in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of strand tungsten filaments, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

What Are the Applications of Molybdenum Substrates?

Molybdenum substrates are essential components in a variety of industries, thanks to the unique properties of molybdenum metal, such as its high melting point, excellent thermal conductivity, and resistance to corrosion. 

These properties make moly substrates highly suitable for applications in electronics, aerospace, and energy sectors, particularly in environments that demand reliability under high temperatures and pressure.

1. Semiconductor Industry

One of the primary uses of Mo substrates is in the semiconductor industry, where they serve as a stable base for the deposition of thin films. Mo substrates provide a smooth and durable surface for creating thin-film semiconductors and integrated circuits (ICs). Their high thermal conductivity helps dissipate heat during manufacturing, preventing thermal damage to sensitive components. Additionally, moly substrates can withstand the high temperatures required during the fabrication of electronic components such as power devices and optoelectronic devices, including LEDs and lasers.

2. Thin Film Deposition

Moly substrates are widely used in thin-film deposition processes, such as sputtering and chemical vapor deposition (CVD), where materials are deposited onto a substrate to form thin, functional layers. These films are commonly used in solar cells, displays, and photovoltaic devices. Molybdenum's high melting point and excellent heat resistance ensure that it remains stable during the deposition process, providing a reliable foundation for high-quality films.

3. Aerospace and High-Temperature Usages

Due to its high thermal conductivity and resistance to oxidation, molybdenum is widely used in aerospace and high-temperature environments. Mo substrates are found in components of rocket engines, turbine blades, and aircraft parts that must endure extreme heat and pressure. Its ability to maintain structural integrity at elevated temperatures makes molybdenum ideal for these demanding usages.

4. Energy and Nuclear Usages

Moly substrates are also used in energy sectors, particularly in nuclear reactors and energy storage devices. Their resistance to corrosion and radiation makes them effective in nuclear applications, where materials are exposed to high radiation levels.

Conclusion

Molybdenum substrates play a critical role in several high-performance industries. Their thermal stability, conductivity, and durability make them essential in semiconductor manufacturing, thin-film deposition, aerospace, and nuclear usages. As industries continue to evolve, the demand for moly substrates is likely to grow, driven by technological advancements and the need for materials that can withstand extreme operational conditions.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply molybdenum in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of molybdenum substrates, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

What Are the Properties of Molybdenum Substrates?

Molybdenum substrates are thin layers or plates of molybdenum metal used in a wide range of industrial applications, primarily in electronics, aerospace, and high-temperature environments. 

Molybdenum, with its excellent thermal conductivity, high melting point (approximately 2,623°C), and corrosion resistance, makes it an ideal material for use in extreme conditions. These substrates are often utilized in high-performance electronic devices, semiconductors, and thin-film deposition processes.

Properties

Molybdenum is known for its robustness in high-temperature applications. It has a high melting point and can maintain its structural integrity even at extreme temperatures. The metal’s excellent thermal and electrical conductivity makes it ideal for applications that require effective heat dissipation. Molybdenum also exhibits high resistance to corrosion, oxidation, and wear, even in harsh chemical environments.

One of the most significant advantages of moly substrates is their ability to withstand thermal cycling without degradation. This property is particularly beneficial for devices that experience fluctuating temperatures. Furthermore, moly substrates offer a smooth surface finish, which is crucial for applications that require precision and minimal surface defects, such as in the fabrication of semiconductors.

Applications

Moly substrates are widely used in the manufacture of integrated circuits (ICs), LEDs, and solar cells. In the semiconductor industry, moly substrates provide a stable base for thin-film deposition, allowing for the creation of thin, high-performance films that can withstand high temperatures during the fabrication process. Additionally, moly substrates are often used in aerospace applications, such as in rocket nozzles and aircraft parts, due to their ability to perform under extreme conditions.

Conclusion

Molybdenum substrates are essential components in industries that demand high temperature stability, corrosion resistance, and precision. Their unique properties, including excellent conductivity and durability, make them indispensable in modern electronics and aerospace applications, contributing to the efficiency and longevity of high-performance devices.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for nearly thirty years. We can supply molybdenum in customized designs. Please free feel to contact us when you got the purchasing plans.

If you have any inquiry of molybdenum substrates, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Electron Beam Tungsten Filament Price in Early November 2024

The price of φ0.65mm electron beam tungsten filament is USD 2.50/PC, EXW XIAMEN, CHINA in the first half of November 2024. 

Tungsten filaments, also called cathodes or electron emitters or electron sources, are mainly made of high-quality tungsten. Of all pure metals, tungsten has the highest melting point (3422°C), the lowest vapor pressure at temperatures above 1650°C, and the highest tensile strength. Tungsten also has the lowest coefficient of thermal expansion of all pure metals. This combination of properties makes tungsten an ideal material.

Tungsten can be used in both thermionic electron guns and field-emission (CFE) electron guns. Electron beams come from filaments made of various materials. The most common is the tungsten hairpin gun, which is widely used in scanning electron microscopes, transmission electron microscopes, and microprobe systems. This filament is a tungsten ring that acts as a cathode. Apply voltage to the loop to heat it up. The anode, which is positive relative to the filament, forms a strong attraction to electrons. This causes electrons to be accelerated towards the anode. Some accelerate near the anode and down the column to the sample.

An electron gun works at a high temperature, which is required for thermionic emission. For this, a filament or the cathode should be of a material that has a high melting point in order for it to continuously emit electrons. Tungsten filament is folded with various shapes to help in focusing the electron beam.

If you have any inquiry of tungsten filaments, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

2% Ceriated Tungsten Electrode Price in Early November 2024

The price of φ1.6x175mm ceriated tungsten electrode is USD0.50/PC, EXW XIAMEN, CHINA in the first half of November 2024. 

Ceriated tungsten electrode (WC20) is alloyed with about 2% cerium oxide. It is a non-radioactive, refractory or non-consumable metal electrode material, which is the preferred substitute for thorium tungsten electrodes. Regular diameter of the electrode is between 0.5mm and 12.0mm, and the length is 150mm and 175mm.

The addition of this small percentage of cerium oxide increases the electron emission qualities of the electrode which gives them a better starting characteristic and a higher current carrying capacity with no spitting. With the increase of cerium oxide content, the ablation resistance and arc starting of ceriated tungsten electrode will increase; with the increase of use time, the welding performance will gradually decrease.

The electrode has excellent arc starting properties at low current, and can operate successfully with AC or DC electrode negative. If used on higher current applications, the cerium oxide June be concentrated to the excessively hot tip of the electrode. In addition, WC20 is also used in inert gas shielded arc welding, hydrogen atom welding, argon arc surfacing, pulse argon arc welding, plasma welding, plasma cutting, plasma spraying, plasma melting, etc. The welding materials can be carbon steel, stainless steel, silicon copper, copper, bronze, titanium and so on.

If you have any inquiry of tungsten electrodes, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Molybdenum Ring Price on November 4, 2024

 φ108.4*φ102.5*70mm molybdenum ring price is USD150.00/PC, EXW XIAMEN, CHINA in the first half of November 2024.

Corrosion resistance, creep resistance and high temperature performance make molybdenum made rings very suitable for high temperature crystal growth processes. When sapphire is easy to extract, higher sapphire yield and quality can be achieved. The molybdenum-based ring has heat resistance and a smooth surface, making it durable and cost-effective.

The surface roughness of the molybdenum ring needs to be higher than 1.6 µm. When the surface of the ring is rough, the sapphire is not easy to take out and it is easy to damage the crystal. In addition, the ring will be damaged in the process. Chinatungsten Online's ultra-smooth ring eliminates these problems. Sapphire manufacturers can benefit from this product because it eliminates complex and expensive processes. In addition, the smooth surface is resistant to corrosion caused by aggressively molten sapphire. This function can extend the service life of reusable rings.

Moly rings for sapphire growth furnaces are available with a variety of dimensions including round, in numerous standard diameters and wall thicknesses. Custom configurations are available. In addition, many other components for these furnaces are also customized.

If you have any inquiry of molybdenum ring, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Gold-plated Molybdenum Copper Carrier Price on November 4, 2024

The latest price of 16x12x1mm gold-plated molybdenum copper carrier is 15.00USD/PC on November 4, 2024. The content of this carrier is Mo85Cu15, which is mainly used for thermal control boards and radiators of military and civilian thermal control devices. 

Molybdenum-copper alloy (MoCu alloy) is a pseudo-alloy composed of two insoluble metals molybdenum and copper. As a result, it gains characteristics both of these two metals, such as high thermal conductivity, low thermal expansion coefficient, non-magnetic, low gas content, good machining performance and special high temperature performance.

There are many grades for molybdenum copper alloy, such as Mo85Cu15, Mo80Cu20, Mo70Cu30, Mo60Cu40, Mo50Cu50, Mo40Cu60. Different grades match different densities, thermal conductivities and coefficients of thermal expansion. Other customized grades also can be customized.

If you have any inquiry of molybdenum carriers, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Scan QR code of Chinatungsten WeChat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.