cerium hexaboride造句

• Cerium hexaboride, like lanthanum hexaboride, slowly evaporates during the cathode operation.
• The compound is isostructural with all other reported rare earth hexaboride compounds including lanthanum hexaboride, samarium hexaboride, and cerium hexaboride.
• Lanthanum hexaboride ( LaB 6 ) and cerium hexaboride ( CeB 6 ) are used as coating of some high-current hot cathodes.
• Hexaborides, such as lanthanum hexaboride ( LaB 6 ) and cerium hexaboride ( CeB 6 ), have low work functions, around 2.5 eV . They are also somewhat resistant to cathode poisoning.
• Cerium hexaboride cathodes have a lower evaporation rate at 1700 K than lanthanum hexaboride, but they become equal at temperatures above 1850 K . Cerium hexaboride cathodes have one and half the lifetime of lanthanum hexaboride, due to the former's higher resistance to carbon contamination.
• Cerium hexaboride cathodes have a lower evaporation rate at 1700 K than lanthanum hexaboride, but they become equal at temperatures above 1850 K . Cerium hexaboride cathodes have one and half the lifetime of lanthanum hexaboride, due to the former's higher resistance to carbon contamination.