Preparation of Plasma-sprayed Oxide Cathode
In the conventional oxide cathode manufacturing process, a BaSrCa(CO3) layer is either painted or sprayed on the Ni base under the normal temperature after the carbonate powders have been mixed with a nitrocellulose binder to provide adhesion to the nickel surface. However, the byproducts deposited in the coating of oxide cathode in the decomposing process and relatively weak adhesion resulting from this method may reduce the emission performance of oxide cathode. In order to improve its performance, plasma spraying has been applied to oxide cathode in the recent years. Plasma spraying produces a high quality coating by combining a high temperature, a relatively inert spraying medium with high particle velocities. It is shown that few byproducts such as C or CO2 are produced in the coating in the decomposing process, and that a firmer and denser oxides coating is formed on the oxide cathode surface.
Min Zhang Xiaoxia Wang Jirun Luo Qinglan Zhao
Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics, Chinese Ac Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese A
国际会议
2010 8th International Vacuum Electron Sources Conference and NANOcarbon(第八届真空电子源和纳米碳国际会议)
南京
英文
510-511
2010-10-14（万方平台首次上网日期，不代表论文的发表时间）