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Issue:
Study on Secondary Emission Property of RE-Mo Material Sintered by SPS
Author(s):
LIU Yanqin
,
LIU Wei
,
LI Na
,
WANG Jinshu
,
ZHOU Meiling
Pages:
85
-
88
Year:
2004
Issue:
1
Journal:
JOURNAL OF THE CHINESE RARE EARTH SOCIETY
Keyword:
金属材料
;
溶胶凝胶
;
钼
;
次级发射阴极
;
稀土
;
Abstract:
采用溶胶凝胶(Sol-Gel)和两步氢还原法, 成功制备了掺杂复合RE2O3 (RE2O3=La2O3+Y2O3)的稀土钼粉末, 粒度分析结果表明粉体的平均粒径为80 nm. 采用放电等离子快速烧结方法(SPS)制备了致密样品, 能谱结果表明稀土元素分布非常均匀. 次级发射测试结果表明, 经高温激活后, 材料的次级发射系数达到2.94.
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