The applications of barium tungsten alloy cathode materials are extensive, mainly concentrated in the fields of electron beam technology, vacuum electronic devices and display technology. The following are several specific application cases:
Electron beam welding (EBW)
In electron beam welding, the barium tungsten alloy cathode, as the core component of the electron gun, emits a high-energy density electron beam to melt the metal and achieve precision welding. This welding method is widely used in aerospace, automobile manufacturing, precision machinery and other fields.
Electron beam melting
In the electron beam melting process, the electron beam emitted by the barium tungsten alloy cathode is used to melt and refine the metal. This technology is particularly suitable for the preparation of high melting point and high purity metal materials, such as titanium alloys, niobium alloys, etc.
Electron beam evaporation coating
The barium tungsten alloy cathode is used to emit an electron beam in the electron beam evaporation coating technology to heat and evaporate the metal or compound material so that it is deposited on the substrate to form a thin film. This technology is widely used in the coating process of optics, semiconductors, displays and other industries.
Vacuum electronic devices
The barium tungsten alloy cathode is a key component in various vacuum electronic devices (such as traveling wave tubes, magnetrons, klystrons, etc.). In these devices, the barium tungsten alloy cathode provides stable and high-density electron emission, ensuring stable and reliable performance of the device.
Display technology
In early cathode ray tube (CRT) displays, the barium tungsten alloy cathode was used to emit electron beams to bombard the fluorescent screen to produce images. Although new display technologies such as liquid crystal display (LCD) and organic light-emitting diode (OLED) have now become mainstream, CRT displays are still used in some special applications.
Scientific research and experimental equipment
In scientific research and experimental equipment, such as electron microscopes and mass spectrometers, barium tungsten alloy cathodes also play an important role. These devices require high-brightness and high-stability electron sources for analysis and testing.
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