碳化铪在O2、CO和CO2环境中的热源

IVESC 2012 Pub Date : 2012-04-24 DOI:10.1109/IVESC.2012.6264183

J. Lovell, W. Mackie, G. Magera

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引用次数: 0

摘要

我们已经使用(210)和(310)取向的碳化铪测试了热离子阴极。这些都在特高压下运行，氧气，二氧化碳和一氧化碳的压力为5 × 10-5托。排放数据显示，由于功函数降低，最初略有改善。据报道，在1 × 10-6托的氧或CO2中，在1900 K下相对稳定地运行。

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Hafnium carbide thermal sources in O2, CO and CO2 environments

We have tested thermionic cathodes using (210) and (310) oriented hafnium carbide. These have been operated in UHV, and pressures of oxygen, CO₂ and CO to 5 × 10^-5 Torr. Emission data show slight initial improvements due to work function lowering. Relatively stable operation at 1900 K in oxygen or CO₂ at 1 × 10^-6 Torr is reported.

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IVESC 2012

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