LaB6 powder (lanthanum boride) was originally mainly used in military industry, aviation, aerospace and some high-tech fields. With the maturity of manufacturing technology, the reduction of production cost and the wider range of applications, it has gradually expanded to civilian fields and refractory materials. And other fields, which provides a broader space for the application of borides.
(1) The application of LaB6 in military industry, aviation and other fields.
It is widely used in the military, and the specific application has been blocked. According to Paderno, the material is widely used in radar, which is called the eyes of national defense. The radar range currently used in our country is too short to meet the requirements of modern warfare, and there is an urgent need to replace high-power electronic tubes. For plasma engines and thrusters. A plasma engine is an accelerator for closed drift of electrons, designed for artificial plasma generation in near-Earth space and electrostatic control of spacecraft; plasma thrusters (such as low-thrust rocket engines) are used for the attitude of long-orbit-life spacecraft Sustainment, track control, and platform retention systems. Due to its strong radiation resistance, lanthanum boride can be used as radiation-resistant building bricks and various packaging materials in the nuclear industry. The United States intends to use lanthanum boride as a cathode in a plasma beam for thermonuclear reactions. As a high-efficiency additive, it has great application potential in special steel for weapons and military vehicles, and can be made into molten metal containers (such as crucibles, etc.). The electronic welding machine made of lanthanum boride can meet the requirements of high-energy intensive welding process. This type of welding machine has a wide range of application values in the fields of aerospace, aviation and weapons.
(2) Application of LaB6 in civil field
Used in high-power electron tubes and magnetrons, electron beams and particle beams, and cathode materials for accelerators, etc. Electron beams can be widely used in integrated circuit processing, electronic engraving, particle accelerators, electron beam heating sources, electronic welding and other fields; electron beams can be used for ion implantation on metal surfaces, surface boronizing, cubic boron nitride film deposition, etc. The Institute of Physics of Chmnitz University of Technology in Germany has successfully prepared superhard BN thin films by this method.
Point light sources for electron microscopes and electron probes, selective optical filters, soft X-ray monochromators, etc. Because high-density current and high brightness can be obtained at medium and low temperatures, it can be used as a cathode material for high-definition (plasma) ultra-thin TV picture tubes, and has great development value.
Coating lanthanum boride on glass through which a special light source shines on seeds increases crop yields. According to data provided by Ukrainian experts, production can be increased by 15%.
(3) The latest application of LaB6
YB6, LaB6, etc. are also high-temperature superconductors. YB6 has a higher transition temperature, and it has the same electronic structure as MgB2. At present, the research on boride superconductor is also a hot spot in the field of boride application. LaB6 can also be used as an oxygen electrode of a high-temperature fuel cell and an electrode of a magnetic fluid generator.
(4) Application of LaB6 in refractories
In recent years, with the development of new refractory materials, especially the development of MgO-C and Al2O3-C brick refractory materials, the research on antioxidants of refractory materials has also become a hot spot. The traditional antioxidants are mainly Al, Si, etc., due to the boride itself Excellent properties, which are well applied in the application of refractory antioxidants, B4C, ZrB2, CaB6 and other added MgO-C, Al2O3-C brick refractory materials have good oxidation resistance, corrosion resistance and thermal shock resistance of refractory materials All have significantly improved. This provides a broader space for the application of borides.
Adding LaB6 to MgO-C and Al2O3-C brick refractory materials can also improve the oxidation resistance, erosion resistance and thermal shock resistance of the refractory materials.
(Chat Online)