100 A/cm2高发射电流密度氧化物阴极

IVESC 2012 Pub Date : 2012-04-24 DOI:10.1109/IVESC.2012.6264160

Xiaoxia Wang, Min Zhang, X. Liao, J. Luo, Qinglan Zhao, Yun Li, Qi Zhang

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引用次数: 1

摘要

本文主要介绍了一种等离子喷涂氧化阴极的研究进展，包括Ni-Sc海绵层和等离子喷涂Sc掺杂涂层的制备及其性能测试。测试结果表明，在850℃温度下，阴极的直流发射电流密度超过4A/cm2，脉冲发射电流密度达到103 A/cm2，脉冲宽度为1μs。

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100 A/cm2 high emission current density oxide cathode

In this paper we mainly describes the research progress in a kind of plasma spraying coating oxide cathode, which includes the preparation of Ni-Sc sponge layer and plasma spraying Sc doped coating and the properties testing. The testing results show that the dc emission current density of the cathode is over 4A/cm2 and the pulse emission current density reaches 103 A/cm2 with a 1μs pulse width at a temperature of 850°C br.

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IVESC 2012

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