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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× 10-8 g/(cm2.s).
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无机材料学报
ISSN: 1000-324X
Year: 2013
Issue: 12
Volume: 28
Page: 1354-1358
1 . 7 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
JCR Journal Grade:3
CAS Journal Grade:4
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 6
Chinese Cited Count:
30 Days PV: 2
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