Lanthanum Hexaboride LaB6 Powder

Lanthanum hexaboride LaB6 Powder 

Lanthanum hexaboride powder are a well-known thermionic material. Lanthanum hexaboride powder has been used to build hot cathodes for a wide variety of applications, including electron guns in cathode ray tubes, cathodes for producing plasma, and electron microscopes. Although mainly monocrystalline emitters are used today, sintered ceramics also exhibit thermionic properties and were historically. It has been shown that if surface impurities are removed, sintered It can exhibit a working function value of 2.36 eV, which is quite comparable to that of single crystals. Furthermore, the emission of photoinduced electrons from both single crystals and polycrystalline samples is documented in the literature, as well as simultaneous thermionic emission and photoemission under excitation of a polycrystalline film at a wavelength of 442 nm. It is also used as an additive to other Ultra High Temperature (UHTC) diboride ceramics to improve their oxidation resistance at extreme temperatures. Due to its well-defined plasma reflection edge making it a textbook case, the optical properties of bulk and thin-film It has been theoretically studied and modeled in the past. Renewable energies, and in particular the problems of the exploitation of solar energy, are a key issue for the future. It is also used as a size/strain standard in X-ray powder diffraction to calibrate instrumental broadening of diffraction peaks.