Barium Tungsten Cathode for Xenon Flash Lamp

Barium tungsten cathode is a common cathode material in xenon flash lamp that is a device that uses the discharge of xenon to generate intense light flashes. It is widely used in photographic flash lamps, laser systems, high-speed photography, medical equipment, xenon lasers and other fields.

In a xenon flash lamp, the BaW cathode acts as the electron generator. When xenon discharges, the generated electron flow will hit the cathode, which will excite the tungsten in the BaW cathode to emit a large number of electrons. These electrons are accelerated by the high-voltage electric field and collide with xenon atoms, which excite the xenon atoms to produce light. The resulting intense light is the flash from a xenon flash.

The application of barium tungsten electrode in the lamp benefits from its good electron emission performance and stability, which can generate enough electrons under high electric field and has a long service life. This allows xenon flash lamps to consistently produce high intensity flashes of light and maintain consistent performance over multiple flash cycles.

It should be noted that the operation of the xenon flash lamps involves high pressure and high temperature, so it should be used with caution and in strict accordance with the relevant safety operating procedures to ensure the safety and stability of use.

In order to ensure the effectiveness of barium tungsten cathode products, it is required not to be exposed to the atmosphere for more than 48 hours before use, and it is necessary to prevent moisture, dust and other pollutants from contacting the product to the greatest extent. When the electrode absorbs too much moisture, spots may appear on the surface of the product during the heating process before subsequent use, which can be reduced or prevented by reducing the heating speed.

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

If you have any inquiry of barium tungsten cathode, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com
Tel.: +86 592 5129696/+86 592 5129595

Fax: +86 592 5129797

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How to Produce Barium Tungsten Cathode?

Barium tungsten cathode is a composite material consisting of barium oxide and tungsten, providing a stable electron source or photoelectron source for electronic devices. 

How to produce barium tungsten cathode? The following processes are their regular steps. 

Raw material preparation: purchase high-quality tungsten powder and barium compound to ensure that the raw materials meet the production requirements.

Mixing and grinding: according to the specific formula ratio, mix tungsten powder and barium compound, and put the mixture into a ball mill for grinding to obtain a uniform mixed powder.

Pressing: put the ground mixed powder into a mold and perform high-pressure pressing to shape it into a cathode of the desired shape.

Sintering: put the pressed cathode into a high temperature furnace for sintering. At high temperatures, tungsten and barium compounds react to form a barium-tungsten composite, forming a strong cathode structure.

Tungsten cathode treatment: after sintering, the cathode may need some subsequent treatment, such as cutting, grinding, polishing, etc., to ensure that the size and surface quality of the cathode meet the requirements.

Soldering: in some special applications, the cathode may need to be welded to other components to assemble a complete electronic device.

Inspection and testing: quality inspection and performance testing are carried out on the finished barium tungsten cathodes to ensure that they meet the specified technical requirements and standards.

Packaging and delivery: qualified finished cathodes are packaged to prevent damage during transportation and are ready for delivery.

It should be noted that the production process involves high temperature and chemical reaction, and it should be strictly followed the relevant safety operation rules to ensure the safety and stability of the production process. In addition, the preparing methods may vary by manufacturer and product type.

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

If you have any inquiry of barium tungsten cathode, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com
Tel.: +86 592 5129696/+86 592 5129595

Fax: +86 592 5129797

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 Barium Tungsten Cathode?

Barium tungsten cathode is a cathode material used in electronic devices, and its applications are as following: 

Xenon flash lamps: the lamps are widely used in photographic flash lamps, laser systems, high-speed photography, medical equipment, xenon lasers and other fields to produce intense light flashes.

X-ray Tubes: BaW cathodes are commonly used in X-ray tubes as an electron source. When a high voltage is applied, the cathode emits electrons, which are accelerated towards the anode, producing X-rays when they strike a target material.

Image Intensifiers: BaW cathodes are utilized in image intensifier tubes used in medical imaging, night vision devices, and certain military applications. The cathode emits electrons that are accelerated to create intensified images.

Fluorescent Screens: BaW cathodes are used in certain types of fluorescent screens. The cathode emits electrons that interact with a phosphor coating, producing visible light.

Cathode Ray Tubes (CRTs): In the past, CRT displays (now largely outdated technology) used BaW cathodes to produce electron beams for displaying images on screens.

Electron Microscopes: BaW cathodes are used as electron sources in certain types of electron microscopes, which provide focused electron beams for imaging purposes.

Microwave Devices: BaW cathodes find applications in high-power microwave devices, such as klystrons and magnetrons, where they serve as electron emitters for microwave generation.

Vacuum electronic devices: In these devices, a cathode acts as an electron generator, which generates an electron beam or light beam through electron emission.

Electron gun: In some particle accelerators, electron microprobes and other equipment, the cathode can also be used as the cathode of the electron gun to generate high-speed electron beams.

Electron accelerators: BaW cathodes are used in some electron accelerators for medical and scientific research to generate electron beams for applications such as radiation therapy and material characterization.

Optoelectronic devices: In some optoelectronic devices, the cathodes can be used to generate photoelectrons, such as photomultiplier tubes (Photomultiplier Tube, PMT). 

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

If you have any inquiry of barium tungsten cathode, please feel free to contact us:
Email: sales@chinatungsten.com/sales@xiamentungsten.com
Tel.: +86 592 5129696/+86 592 5129595

Fax: +86 592 5129797

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

What Is Barium Tungsten Cathode?

Barium tungsten cathode, also called barium tungsten electrode, is a cathode material used in electronic devices, which is a composite material consisting of barium oxide (BaO) and tungsten (W). The cathode is an important part of an electronic device, it is where electrons are generated. 

In electronic devices, these cathodes are usually used in vacuum electronic devices, such as light bulbs, X-ray tubes, electronic picture tubes and some high-power microwave tubes. The most popular applications are in xenon flash lamps. 

The product has the following characteristics: 

High electron emission performance: it has good electron emission performance and can generate a large number of electrons under a certain electric field.

Low power: It can generate the required flow of electrons with low power, which is useful in some low-power electronic devices.

Long service life: it usually has a long service life, which is essential for some electronic devices that require stable performance.

High temperature resistance: the cathode can work under high temperature conditions, which makes it suitable for high temperature environment or high-power electronic devices.

In the barium tungsten cathode, tungsten is the main electron emission material, and the addition of barium can enhance the electron emission performance of tungsten. The preparation of this cathode requires precise process control to ensure the stable performance and long service life of the cathode.

Barium tungstate cathodes offer good electron emission properties, which make them suitable for applications requiring stable and controlled electron emission. The cathode material's ability to emit electrons efficiently is crucial for the performance of these electronic devices, which rely on electron beams for their operation.

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

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

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

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

Fax: +86 592 5129797

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Tungsten Plate Price in August 2023

3.5x96x560mm tungsten plate price is 520.00 USD/PC in early August 2023, 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

Fax: +86 592 5129797

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Lanthanated Tungsten Electrode Price in August 2023

Ø3.2x175mm lanthanated tungsten electrode price is 2.00 USD/PC in early August 2023, 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

Fax: +86 592 5129797

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