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Manufacturing methods and lanthanum hexaboride particles of lanthanum hexaboride fine
Manufacturing methods and lanthanum hexaboride particles of lanthanum hexaboride fine
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机译:六硼化镧细粉的制造方法和六硼化镧颗粒
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摘要
PROBLEM TO BE SOLVED: To provide a method for producing at high productivity, LaB6 fine particles having high purity and small diameters and suitable as raw material powder for producing an LaB6 sintered compact used as a sputtering target, and to provide the LaB6 fine particles having high purity and small diameters and suitable to the above application.;SOLUTION: The method for producing lanthanum hexaboride fine particles includes: a step (a) of mixing a lanthanum compound and a boron compound in such a manner that a B/La atom ratio is controlled to ≤4; a step (b) of firing the mixture obtained in the step (a) in a reducing atmosphere; and a step (c) of subjecting the fired material obtained in the step (b) to acid cleaning. In the lanthanum hexaboride fine particles, the content of a carbon element is ≤0.5 mass%, the content of an oxygen element is ≤1 mass%, and also, the average particle diameter is 50 to 600 nm.;COPYRIGHT: (C)2012,JPO&INPIT
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