| 铱铈合金浸渍钪酸盐阴极研究 |
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| 引用本文： | 李泉凤 李雷呜. 铱铈合金浸渍钪酸盐阴极研究[J]. 材料开发与应用, 1996, 11(2): 5-8,36 |
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| 作者姓名： | 李泉凤 李雷呜 |
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| 作者单位： | 清华大学 |
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| 摘 要： | 铱铈合金浸渍钪酸盐阴极能够在相对较低的阴极工作温度下，产生较大的发射电流密度，在１４７０Ｋ时，阴极零场发射电流密度为２．１９Ａ／ｃｍ２。本文同时讨论了阴极有效逸出功和阴极工作温度之间近似的线性关系。
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| 关 键 词： | 铱铈合金浸渍钪酸盐阴极，发射电流密度，有效逸出功 |
An Ir-Ce Alloy Cathode Impregnated with Scandate |
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| Li Quanfeng, Li Leiming,Wang Fusheng. An Ir-Ce Alloy Cathode Impregnated with Scandate[J]. Development and Application of Materials, 1996, 11(2): 5-8,36 |
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| Authors: | Li Quanfeng Li Leiming Wang Fusheng |
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| Affiliation: | (Tsinghua University |
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| Abstract: | II-Ce alloy cathode impregnated with scandate is able to generate high emission density at a relatively low working temperature. At 1470K,a zero-field emission density of 2.19 A/cm￣2 is obtained. The approximate linear relation between the working temperature and the effective work function of the cathode is discussed. |
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| Keywords: | It-Ce alloy cathode impregnated with scandate Emission density Effective work function |
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