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    Method for manufacturing thermionic cathode
    3.
    发明授权
    Method for manufacturing thermionic cathode 失效
    热离子阴极的制造方法

    公开(公告)号：US4168565A

    公开(公告)日：1979-09-25

    申请号：US898401

    申请日：1978-04-20

    申请人： Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

    发明人： Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

    IPC分类号： H01J1/13 ,  H01J9/04

    CPC分类号： H01J9/04 ,  H01J1/13

    摘要： A method for manufacturing a thermionic cathode is provided which comprises cutting a bar from a multi-layer structure having a first layer of thermoelectron emissive compound and a third layer of metal of high melting point, a second layer of reaction barrier being interposed between said first and third layers, the bar being cut in a direction substantially perpendicular to that of the layers, sharpening the end of the first layer of the bar and then providing current terminals with the third layer of the bar. According to the method of the invention, a thermionic cathode capable of emitting stable electron beams of high intensity for a long period of time can be manufactured.

    摘要翻译： 提供一种用于制造热离子阴极的方法，其包括从具有第一层热电子发射化合物层和第三层高熔点金属的多层结构切割条，第二层反应阻挡层插入在所述第一层 和第三层，所述条在基本上垂直于所述层的方向上切割，使所述条的所述第一层的末端锐化，然后向所述条的第三层提供电流端子。 根据本发明的方法，可以制造能够长时间发射高强度电子束的热离子阴极。

    Thermionic cathode
    5.
    发明授权
    Thermionic cathode 失效
    热阴极

    公开(公告)号：US4137476A

    公开(公告)日：1979-01-30

    申请号：US798243

    申请日：1977-05-18

    申请人： Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

    发明人： Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

    IPC分类号： H01J1/13 ,  H01J1/16 ,  H01J19/10

    CPC分类号： H01J1/13

    摘要： A thermionic cathode for an electron beam device is provided which comprises a first layer of thermoelectron emissive compound sharpened towards a point, a third layer of metal of high melting point and a second layer of reaction barrier interposed between the first and third layers, current terminals being attached to said third layer. According to the invention, a thermionic cathode capable of emitting stable electron beams of high intensity for a long period of time can be manufactured.

    摘要翻译： 提供了一种用于电子束装置的热离子阴极，其包括朝向点锐化的第一层热电子发射化合物，高熔点金属第三层和介于第一和第三层之间的第二反应栅层，电流端子 附着于所述第三层。 根据本发明，可以制造能够长时间发射高强度电子束的热离子阴极。

    Container for evaporation of metal
    6.
    发明授权
    Container for evaporation of metal 失效
    容器用于蒸发金属

    公开(公告)号：US4029466A

    公开(公告)日：1977-06-14

    申请号：US603140

    申请日：1975-08-08

    申请人： Masaji Ishii ,  Akio Mikogami ,  Akira Miyai

    发明人： Masaji Ishii ,  Akio Mikogami ,  Akira Miyai

    IPC分类号： C04B41/51 ,  C04B41/88 ,  C23C14/24 ,  F27B14/10 ,  F27B14/06

    CPC分类号： C04B41/5133 ,  C04B41/88 ,  C23C14/243

    摘要： Metal is evaporated in a container which comprises an electrically conductive ceramic base whose surface in contact with the molten metal is coated with a film comprising, a main component selected from the group consisting of titanium carbide, zirconium carbide, hafnium carbide, vanadium carbide, niobium carbide, tantalum carbide, chromium carbide, molybdenum carbide, tungsten carbide, tungsten metal, tantalum metal and molybdenum metal.

    摘要翻译： 金属在容器中蒸发，该容器包括导电陶瓷基底，其与熔融金属接触的表面涂覆有包括选自碳化钛，碳化锆，碳化铪，碳化钒，铌的主要成分的膜 碳化物，碳化钽，碳化铬，碳化钼，碳化钨，钨金属，钽金属和钼金属。

    Thermionic cathode apparatus
    9.
    发明授权
    Thermionic cathode apparatus 失效
    热阴极阴极装置

    公开(公告)号：US4288717A

    公开(公告)日：1981-09-08

    申请号：US91860

    申请日：1979-11-06

    申请人： Hiroaki Tanji ,  Mitsuaki Saito ,  Masaji Ishii

    发明人： Hiroaki Tanji ,  Mitsuaki Saito ,  Masaji Ishii

    IPC分类号： H01J1/16 ,  H01J19/10

    CPC分类号： H01J1/16

    摘要： A thermionic cathode includes an electron emitting tip, lanthanum hexaboride tip supporting heaters in close contact with both sides of the tip and supporting the tip, and elastic electroconductive members in pressure contact with outer surfaces of the tip supporting heaters for supplying electric current. The tip supporting heaters are obtained by cutting lanthanum hexaboride having high anisotropy due to its layered structure so as to form a pair of parallel planes perpendicular to a pressing direction when hot-pressed, and abrade-polishing the parallel planes. The tip supporting heaters are brought into close contact with the tip and the elastic electroconductive members at the resulting smooth surfaces thereof. The apparatus of the invention has a prolonged lifetime and high efficiency.

    摘要翻译： 热离子阴极包括电子发射尖端，六硼酸镧尖端，支撑与尖端的两侧紧密接触并支撑尖端的加热器，以及与用于提供电流的尖端支撑加热器的外表面压力接触的弹性导电构件。 尖端支撑加热器是通过切割由于其分层结构而具有高各向异性的六硼化镧而获得的，以便在热压时形成垂直于挤压方向的一对平行平面，并且研磨平行平面。 尖端支撑加热器在其所得到的平滑表面与尖端和弹性导电构件紧密接触。 本发明的装置具有延长的使用寿命和高效率。