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Annealing temperature and property of Hf used for FWG-TWT
其他题名折叠波导行波管铪栅极退火温度及其性能(英文)
Ma; Tian-Jun; Chen; Zhen-Hai; Yu; Shi-Ji; Sun; Jian-Hai; Yi; Fu-Ting; Liu; Pu-Kun; Yi FT(伊福廷)
2015
发表期刊TRANSACTIONS OF MATERIALS AND HEAT TREATMENT
卷号36页码:213-217
摘要After fully considering working environment of electron gun grid cathode, Hf-grids were annealed at 800, 900, 1000 in vacuum. Microstructure and texture of the Hf-grids were studied by means of SEM, MRD and Schulz technology. In order to compare the property of Mo with Hf, Mo and Hf were respectively deposited onto the surface of the cathode by ion beam assisted deposition for imitating the surface conditions of Mo-grids and Hf-grids, the cathode was fabricated by Ba-W materials. The capability of restraining electron emission was evaluated by measuring the ratios of thermo-electronic emission and secondary electron emission coefficient on testing system. The results show that crystallinity and grain size increase and fiber structure decreases with increasing annealing temperature. The optimality temperature is 900. It is found that Hf can effectively restrain the electron emission. ©, 2015, Editorial Office of Transactions of Materials and Heat Treatment. All right reserved.
文章类型Article
关键词Annealing temperatures Electronic emission Fiber structures Grid emissions Secondary electron emission coefficients Secondary electron emissions Surface conditions Working environment
收录类别EI
WOS类目537.1 Heat Treatment Processes ; 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 701.1 Electricity: Basic Concepts and Phenomena ; 714.1 Electron Tubes ; 932.1 High Energy Physics ; 933 Solid State Physics
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228922
专题多学科研究中心
推荐引用方式
GB/T 7714
Ma,Tian-Jun,Chen,et al. Annealing temperature and property of Hf used for FWG-TWT[J]. TRANSACTIONS OF MATERIALS AND HEAT TREATMENT,2015,36:213-217.
APA Ma.,Tian-Jun.,Chen.,Zhen-Hai.,Yu.,...&伊福廷.(2015).Annealing temperature and property of Hf used for FWG-TWT.TRANSACTIONS OF MATERIALS AND HEAT TREATMENT,36,213-217.
MLA Ma,et al."Annealing temperature and property of Hf used for FWG-TWT".TRANSACTIONS OF MATERIALS AND HEAT TREATMENT 36(2015):213-217.
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