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Overview
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The refractory ceramic material lanthanum hexaboride (LaB6) possesses several notable properties that enable its varied applications. Composed of lanthanum and boron in a hexagonal crystal structure, LaB6 has an exceptionally low work function allowing for excellent electron emission. This leads to its common use as an electron source in electron microscopes, electron beam lithography systems, and electron beam welders. Additionally, LaB6 demonstrates high thermal stability and electrical conductivity, with a melting point and low vapor pressure that allow it to withstand high temperatures, serving as a cathode material in applications like thermionic power generation. LaB6 also maintains good chemical stability against oxidation, permitting its use in vacuum systems and as a heat-resistant coating. Thanks to the characteristic electron emission resulting from its unique traits, LaB6 further assists industries such as lighting and displays. In all, LaB6's properties support diverse roles in fields involving microscopy, welding, power production, and more due to the versatile nature of this refractory ceramic material arising from its notable makeup and characteristics.
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- Properties
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Overview