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Author:

王凯风 (王凯风.) | 刘伟 (刘伟.) | 王金淑 (王金淑.) (Scholars:王金淑)

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CQVIP PKU CSCD

Abstract:

采用液相共沉淀法制备了612铝酸盐(n(BaO):n(CaO):n(Al2O3)=6:1:2)前驱粉末,在不同气氛(H2、CO2、N2)、不同温度(1300℃、1400℃、1500℃)焙烧制备铝酸盐,系统研究了不同工艺制备的铝酸盐对钡钨阴极性能的影响。结果表明:前驱粉末的最佳焙烧工艺为:H2气氛、1500℃,可获得主相为Ba5CaAl4O12的铝酸盐,用其制备的钡钨阴极发射电流密度可达12.2 A/cm2,蒸发速率仅为1.09×10-8g/(cm2 s)。

Keyword:

铝酸盐 钡钨阴极 Ba5 CaAl4 O12 共沉淀法

Author Community:

  • [ 1 ] 北京工业大学教育部新型功能材料重点实验室

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Source :

无机材料学报

Year: 2013

Issue: 12

Volume: 28

Page: 1354-1358

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 10

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