Cerium hexaboride

（重定向自Cerium boride）

A cerium hexaboride top hat cathode. Image courtesy of Applied Physics Technologies

Cerium hexaboride (CeB₆, also called cerium boride, CeBix, CEBIX, and (incorrectly) CeB) is an inorganic chemical, a boride of cerium. It is a refractory ceramic material. It has low work function and one of the highest electron emissivity known, and is stable in vacuum. The principal use of cerium hexaboride is a coating of hot cathodes, or hot cathodes made of cerium hexaboride crystals. It usually operates at temperature of 1450 °C.

单词	Cerium boride
释义	Cerium boride 英语百科 Cerium hexaboride （重定向自Cerium boride） Cerium hexaboride (CeB₆, also called cerium boride, CeBix, CEBIX, and (incorrectly) CeB) is an inorganic chemical, a boride of cerium. It is a refractory ceramic material. It has low work function and one of the highest electron emissivity known, and is stable in vacuum. The principal use of cerium hexaboride is a coating of hot cathodes, or hot cathodes made of cerium hexaboride crystals. It usually operates at temperature of 1450 °C.
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