| Preparation of nanocomposite thoriated tungsten cathode by swaging technique |
| |
| 作者姓名： | 王发展 诸葛飞 张晖 丁秉钧 |
| |
| 作者单位： | School of Materials Science and Engineering，Xi′an Jiaotong University，Xi′an 710049，China |
| |
| 基金项目： | Project (5 0 0 710 43 )supportedbytheNationalNaturalScienceFoundationofChinaandproject (DFXJU2 0 0 0 -1)supportedyDoctorateFoundationofXi′anJiaotongUniversity |
| |
| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｃｅｎｔａｒｃ ｐｌａｓｍａｔｅｃｈｎｏｌｏｇｙｈａｓｂｅｅｎｗｉｄｅｌｙｕｓｅｄｉｎｍａｎｙｆｉｅｌｄｓ,ｓｕｃｈａｓｒｏｂｏｔｉｃｗｅｌｄｉｎｇ ,ｐｌａｓｍａｓｐｒａｙｉｎｇ ,ｔｈｅｒｍａｌｐｌａｓｍａｃｈｅｍｉｓｔｒｙ ,
|
| 关 键 词： | W-ThO2阴极 纳米粉末 纳米复合物 锻压技术 |
Preparation of nanocomposite thoriated tungsten cathode by swaging technique |
| |
| WANG Fa zhan,ZHUGE Fei,ZHANG Hui,DING Bing jun.Preparation of nanocomposite thoriated tungsten cathode by swaging technique[J].Transactions of Nonferrous Metals Society of China,2002,12(2):242-245. |
| |
| Authors: | WANG Fa zhan ZHUGE Fei ZHANG Hui DING Bing jun |
| |
| Abstract: | By using the high energy ball milling method, the nanosized ThO 2 powders were obtained. Through mixing powders, sintering and hot swaging processing, a nanocomposite thoriated tungsten cathode was fabricated. The relative density of the nanocomposite material is near 100%. The microstructure of nanocomposite cathode is quite different from that of conventional thoriated tungsten cathode. Most of thoria particles are less than 100?nm in diameter, and distribute on the boundaries of tungsten grains. The nanocomposite cathode shows a much lower arc starting field than that of conventional cathode, which will improve the performance of the cathode significantly. |
| |
| Keywords: | W ThO 2 cathode nanosized powders nanocomposite swaging |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
