Oxide cathode
    1.
    发明授权
    Oxide cathode 失效
    氧化物阴极

    公开(公告)号:US5519280A

    公开(公告)日:1996-05-21

    申请号:US216019

    申请日:1994-03-21

    IPC分类号: H01J1/14 H01J1/142 H01J1/20

    CPC分类号: H01J1/142

    摘要: An oxide cathode is provided including an electron emissive material layer including barium, a metal base, a sleeve and a heater, wherein the electron emissive material layer further includes 0.1 to 20 wt. % of tin or a tin compound, based on the total amount of the electron emissive material, and indium or an indium compound.

    摘要翻译: 提供一种氧化物阴极,其包括包括钡,金属基底,套筒和加热器的电子发射材料层,其中电子发射材料层还包含0.1至20wt。 基于电子发射材料的总量和铟或铟化合物的锡或锡化合物的%。

    Cathode for electron tube
    2.
    发明授权
    Cathode for electron tube 失效
    电子管阴极

    公开(公告)号:US5698937A

    公开(公告)日:1997-12-16

    申请号:US393534

    申请日:1995-02-23

    CPC分类号: H01J1/142

    摘要: A cathode for an electron tube has a layer of electron-emissive substance containing alkaline earth metal carbonates having capillary crystals, to which 0.01-20.0 wt % of both a lanthanum (La) compound and a magnesium (Mg) compound or an La--Mg compound, based upon the weight of the alkaline earth metal carbonate, is added. The cathode enjoys full interchangeability with a conventional oxide cathode and a 15-20% longer lifetime.

    摘要翻译: 用于电子管的阴极具有含有具有毛细晶体的碱土金属碳酸酯的电子发射物质层,镧(La)化合物和镁(Mg)化合物或La-Mg两者的0.01-20.0重量% 加入基于碱土金属碳酸盐的重量的化合物。 阴极与常规氧化物阴极完全互换,寿命长达15-20%。

    Cathode for electron tube
    3.
    发明授权
    Cathode for electron tube 失效
    电子管阴极

    公开(公告)号:US5982083A

    公开(公告)日:1999-11-09

    申请号:US744453

    申请日:1996-11-07

    IPC分类号: H01J1/142 H01J1/13

    CPC分类号: H01J1/142

    摘要: A cathode for an electron tube includes a layer of a electron emitting substance containing alkaline earth metal oxides containing 0.01--20.0 wt % of both a lanthanum compound and a magnesium compound or a lanthanum-magnesium compound disposed on a base metal including nickel as a major component and tungsten as a minor component. The tungsten prevents embrittlement and ensures a continuing supply of fill barium in the electron-emitting substance. The cathode enjoys full interchangeability with the conventional oxide cathode and a 15-30% longer life span.

    摘要翻译: 电子管的阴极包括含有碱土金属氧化物的层,所述碱土金属氧化物含有0.01-20.0重量%的镧化合物和镁化合物,或镧 - 镁化合物,其配置在包含镍作为主要的贱金属 组分和钨作为次要组分。 钨防止脆化并确保在电子发射物质中持续供应填充钡。 阴极与常规氧化物阴极完全互换,寿命长达15-30%。