发明名称 |
IMPROVEMENTS IN END CLOSURE MEMBERS FOR DISCHARGE LAMPS |
摘要 |
An electrically conducting cermet for use in a closure assembly in a high pressure sodium discharge lamp which cermet comprises a sintered compact of refractory oxide granules and a conducting network extending throughout the cermet wherein said network is provided by a layer of niobium and, optionally, at least one other specified metal. The cermet is, because of the niobium content of the metallic network, permeable to hydrogen and lamps incorporating this cermet can therefore be stabilized in acceptable times. |
申请公布号 |
DE3377249(D1) |
申请公布日期 |
1988.08.04 |
申请号 |
DE19833377249 |
申请日期 |
1983.10.17 |
申请人 |
THORN EMI PLC |
发明人 |
SEDDON, RICHARD JOHN;PARKER, KEITH EVAN;HING, PETER |
分类号 |
C22C29/12;H01B1/08;H01J61/36;(IPC1-7):H01J61/36 |
主分类号 |
C22C29/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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