发明公开
EP0178716A1 Method of manufacturing a scandate dispenser cathode and scandate dispenser cathode manufactured according to the method
失效
制造含有钪酸盐阴极分配器通过含有钪酸盐阴极分配器这种方法和一种方法。
- 专利标题： Method of manufacturing a scandate dispenser cathode and scandate dispenser cathode manufactured according to the method
- 专利标题（中）： 制造含有钪酸盐阴极分配器通过含有钪酸盐阴极分配器这种方法和一种方法。
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申请号： EP85201586.6申请日： 1985-10-02
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公开(公告)号： EP0178716A1公开(公告)日： 1986-04-23
- 发明人: Hasker, Jan , van Esdonk, Johannes , Kwestroo, Wim
- 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： Koppen, Jan
- 优先权： NL8403031 19841005
- 主分类号： H01J9/04
- IPC分类号： H01J9/04
摘要：
A method of manufacturing a scandate dispenser cathode having a matrix (1) at least the top layer of which consists substantially of a mixture of tungsten with scandium oxide or with a mixed oxide comprising scandium oxide. When sintering of the matrix is carried out at a temperature between 1300 and 1700°C, preferably at approximately 1500°C and in a hydrogen atmosphere, cathodes are obtained having a better recovery after ion bombardment compared with cathodes sintered at 1900°C. Sintering in hydrogen results in a better reproducibility.
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