Barium tungsten alloy cathode material has the following significant characteristics:
High electron emission performance
After the barium tungsten alloy cathode is activated, a layer of W-Ba-O electron emission system will be formed on its surface. This system has a low electron work function and can provide stable and high-density electron emission at a relatively low temperature. This makes the barium tungsten alloy cathode have broad application prospects in the fields of electron beam devices, display devices, etc.
Good thermal stability
Tungsten, as a high melting point metal, has excellent thermal stability. The tungsten matrix in the barium tungsten alloy cathode can withstand high temperature environments while maintaining stable electron emission performance. This thermal stability enables the barium tungsten alloy cathode to work reliably at high temperatures, extending the service life of the device.
Long life
Due to the stable electron emission performance and good thermal stability of the barium tungsten alloy cathode, its service life is relatively long. Under normal working conditions, the barium tungsten alloy cathode can maintain stable emission performance for a long time, reducing the frequency and maintenance cost of replacing the cathode.
Low dissipation rate
The barium element in the barium tungsten alloy cathode continuously diffuses to the cathode surface through the porous tungsten matrix and reacts with tungsten to form an emission layer. This porous structure can effectively control the escape velocity of barium elements and maintain the stable concentration of active substances on the cathode surface, thereby ensuring the stable emission performance of the cathode.
Easy to process
Tungsten is an easy-to-process material that can be prepared into barium tungsten alloy cathodes of different shapes and sizes through various processing techniques. This good processing performance enables the barium tungsten alloy cathode to adapt to different application needs and meet the design requirements of different devices.
Strong environmental adaptability
The barium tungsten alloy cathode can work stably in various environments, including extreme conditions such as vacuum, high temperature, and high pressure. This environmental adaptability makes the barium tungsten alloy cathode widely used in processes such as electron beam welding, electron beam melting, and electron beam evaporation.
More details of tungsten barium electrode or tungsten barium cathode, please visit website: http://tungsten.com.cn/barium-tungsten-cathode.html
Please contact CHINATUNGSTEN ONLINE for inquiry and order of tungsten needles:
Email: sales@chinatungsten.com
Tel.: +86 592 5129595
