发明公开
EP0298558A1 Method of manufacturing a scandat cathode
失效
Verfahren zur Herstellung einer Scandat-Kathode。
- 专利标题: Method of manufacturing a scandat cathode
- 专利标题(中): Verfahren zur Herstellung einer Scandat-Kathode。
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申请号: EP88201392.3申请日: 1988-07-04
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公开(公告)号: EP0298558A1公开(公告)日: 1989-01-11
- 发明人: Van Esdonk, Johannes , Hasker, Jan , Van Lith, Josef Johannes
- 申请人: Philips Electronics N.V.
- 申请人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人: Philips Electronics N.V.
- 当前专利权人: Philips Electronics N.V.
- 当前专利权人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构: Raap, Adriaan Yde
- 优先权: NL8701583 19870706
- 主分类号: H01J9/04
- IPC分类号: H01J9/04 ; H01J1/28
摘要:
A cathode body for an impregnated scandate cathode is obtained by compressing and sintering a mixture of tungsten powder with approximately 0.5% by weight of scandium, whereafter the body is impregnated.
公开/授权文献
- EP0298558B1 Method of manufacturing a scandat cathode 公开/授权日:1994-05-25
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