Effect of La2O3 nanoparticles on properties of molybdenum powder|WANG Jin-shu(王金淑), ZHOU Mei-ling(周美玲), ZUO Tie-yong(左铁镛),NIE Zuo-ren(聂祚仁), ZHANG Jiu-xing(张久兴), LIU Juan(刘娟)-《中国有色金属学报》官方网站|全网首发|论文开放获取

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 11 No. 6 December 2001

Effect of La₂O₃ nanoparticles on
properties of molybdenum powder

WANG Jin-shu(王金淑), ZHOU Mei-ling(周美玲), ZUO Tie-yong(左铁镛),
NIE Zuo-ren(聂祚仁), ZHANG Jiu-xing(张久兴), LIU Juan(刘娟)

（Key Laboratory of Advanced Functional Materials, Ministry of Education,
P.R.China; School of Materials Science and Engineering,
Beijing Polytechnic University,Beijing 100022, P.R.China）

Abstract: The properties of La₂O₃-doped molybdenum powder were studied. The La₂O₃ nanoparticles on the surface of molybdenum powder which is produced by the reduction of La(NO₃)₃-doped MoO₂ in hydrogen decrease the intensity of feature energy loss peak of molybdenum substrate; but increase that of peak of Mo3d. The surface of molybdenum powder exposed to the atmosphere can be reduced because the surface is mainly covered with La₂O₃ nanoparticles. As a result, the capability of anti-oxidation of molybdenum is improved.

Key words: La₂O₃-doped molybdenum powder； XPS； nanoparticle

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW