| 微波管栅发射问题的研究 |
| |
| 引用本文： | 王小霞,廖显恒,赵青兰,余晓军,张济忠.微波管栅发射问题的研究[J].电子与信息学报,2002,24(7):1005-1008. |
| |
| 作者姓名： | 王小霞 廖显恒 赵青兰 余晓军 张济忠 |
| |
| 作者单位： | 1. 中国科学院电子学研究所,北京,100080
2. 清华大学材料与工程系,北京,100084 |
| |
| 摘 要： | 利用离子束辅助沉积技术在 Mo栅极上镀上并注入一层 Hf膜,对镀后的样品进行了形貌、结构、成份、膜厚及 Mo、Hf界面分析。将样品进行电子管模拟栅发射试验,栅极温度为 650℃,试验 1000h以上基本无栅发射电流,可以提高栅控管的可靠性和寿命。实验结果表明,阴极中的活性物质Ba蒸发到镀Hf的 Mo栅极表面,Ba,Hf和O2能形成化合物,从而有效抑制栅极发射电流。
|
| 关 键 词： | 栅发射 离子束辅助沉积 化合物 |
| 收稿时间： | 2001-3-19 |
| 修稿时间： | 2001年3月19日 |
Study on grid emission of microwave power tubes |
| |
| Wang Xiaoxia,Liao Xianheng,Zhao Qinglan,Yu Xiaojun,Zhang Jizhong.Study on grid emission of microwave power tubes[J].Journal of Electronics & Information Technology,2002,24(7):1005-1008. |
| |
| Authors: | Wang Xiaoxia Liao Xianheng Zhao Qinglan Yu Xiaojun Zhang Jizhong |
| |
| Affiliation: | Institute of Electronics Chinese Acadimy of Sciences Beijing 100080 China;Dept. of Materials Sci. and Eng.,Tsinghua University Beijing 100084 China |
| |
| Abstract: | Hf film is coated on the surface of Mo-grids by vacuum ion beam aided deposition technology. The SEM, XRD and RBS analyses are performed on modified Mo-grids. Life-span tests of this modified Mo-grid are carried out by diode experiment. When the temperature of the modified Mo-grids is kept at 650 ℃, the modified Mo-grids electron emission can not be detected with microammeter after 1000h life-span. The experimental results show that after the grid is contaminated by electron emission substance Ba of the cathode Hf formed compounds restrain effectively electron emission of grid. |
| |
| Keywords: | Grid emission Ion beam Aided deposition(IBAD) Compounds |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
|
