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40 条记录 (耗时 0.029 秒)

    Electron tube cathode and method for producing the same
    1.
    发明授权
    Electron tube cathode and method for producing the same 失效
    电子管阴极及其制造方法

    公开(公告)号：US4260665A

    公开(公告)日：1981-04-07

    申请号：US946194

    申请日：1978-09-27

    申请人： Toshiyuki Aida ,  Sadanori Taguchi ,  Isamu Yuito ,  Ushio Kawabe ,  Shigehiko Yamamoto ,  Yukio Honda ,  Norio Shibata ,  Hiroshi Okano

    发明人： Toshiyuki Aida ,  Sadanori Taguchi ,  Isamu Yuito ,  Ushio Kawabe ,  Shigehiko Yamamoto ,  Yukio Honda ,  Norio Shibata ,  Hiroshi Okano

    IPC分类号： H01J1/26 ,  H01J1/14 ,  H01J1/15 ,  H01J9/04

    CPC分类号： H01J9/04 ,  H01J1/14 ,  Y10T428/12028 ,  Y10T428/12618 ,  Y10T428/12875 ,  Y10T428/12944

    摘要： An electron tube cathode in such a structure comprising a Ni-W-Zr alloy (W content: 20-28 wt. %) having a grain size of 4-10 .mu.m as a base metal, a 1,000-2,000 A-thick Pt film provided on the surface of the base metal, and an electron emitting material layer consisting of alkaline earth metal oxide provided on the Pt film has less emission lowering and less peeling of the electron emitting material layer, even if placed in a long time service. The electron tube cathode can be produced according to a method comprising (i) a step of annealing a base metal of Ni-W-Zr alloy (W content: 20-28 wt. %) at 1,000.degree.-1,200.degree. C., (ii) a step of providing a 1,000-2,000 A thick Pt film on the surface of the base metal, and (iii) a step of providing an electron emitting material layer consisting of alkaline earth metal oxide on the Pt film.

    摘要翻译： 这种结构中的电子管阴极，其特征在于：以贱金属为基准的粒径为4-10μm的Ni-W-Zr合金（W含量：20〜28重量％），1000〜 并且由于设置在Pt膜上的由碱土类金属氧化物构成的电子发射材料层即使放置在长时间的服务中也具有较少的发射降低和较少的电子发射材料层的剥离。 电子管阴极可以根据以下方法制造：（i）在1000-1200℃下退火Ni-W-Zr合金的母材（W含量：20-28重量％）的步骤，（ ii）在母材表面上提供1,000-2,000A厚的Pt膜的步骤，和（iii）在Pt膜上提供由碱土金属氧化物构成的电子发射材料层的步骤。

    Impregnated cathode
    3.
    发明授权
    Impregnated cathode 失效
    浸渍阴极

    公开(公告)号：US4400648A

    公开(公告)日：1983-08-23

    申请号：US192870

    申请日：1980-10-01

    申请人： Sadanori Taguchi ,  Yukio Honda ,  Toshiyuki Aida ,  Ushio Kawabe

    发明人： Sadanori Taguchi ,  Yukio Honda ,  Toshiyuki Aida ,  Ushio Kawabe

    IPC分类号： H01J1/28 ,  H01J1/14

    CPC分类号： H01J1/28

    摘要： An impregnated cathode having a complex porous body of one-body construction which is mounted in a metal sleeve and in which a partition layer made of a porous material having a porosity less than 17% is arranged in close contact with an impregnated layer made of a porous material containing an electron emissive material. The aforementioned porous partition layer takes the place of the conventional partition plate of refractory metal. The impregnated cathode according to the present invention can not only have its size reduced without any difficulty but also enjoy a high emission current density with a remarkably small dispersion.

    摘要翻译： 具有安装在金属套筒中的单体结构的复合多孔体的浸渍阴极，其中由孔隙率小于17％的多孔材料制成的分隔层紧密接触于由 含有电子发射材料的多孔材料。 上述多孔分隔层代替常规的难熔金属隔板。 根据本发明的浸渍阴极不仅能够使其尺寸减小而且难以实现，而且还可以获得非常小的色散的高发射电流密度。

    Hexaboride electron emissive material
    4.
    发明授权
    Hexaboride electron emissive material 失效
    六硼化物电子发射材料

    公开(公告)号：US3932314A

    公开(公告)日：1976-01-13

    申请号：US503471

    申请日：1974-09-05

    申请人： Ushio Kawabe ,  Shigehiko Yamamoto ,  Toshiyuki Aita ,  Yukio Honda

    发明人： Ushio Kawabe ,  Shigehiko Yamamoto ,  Toshiyuki Aita ,  Yukio Honda

    IPC分类号： H01J1/30 ,  C01B35/04 ,  C04B35/58 ,  H01J1/14 ,  H01J1/148 ,  H01J1/304 ,  H01B1/06

    CPC分类号： H01J1/148 ,  H01J1/304

    摘要： An electron emissive material of the formula (Y.sub.1.sub.-x EU.sub.x)B.sub.6 having the calcium hexaboride type crystal structure can easily produce hexaborides of the single phase. These borides have a number of merits such as small work function, high mechanical properties and low vapor pressure, and they are far more excellent than prior-art materials when used in a thermionic emission cathode and a field emission type cold cathode.

    摘要翻译： 具有六硼化钙型晶体结构的式（Y1-xEUx）B6的电子发射材料可以容易地生产单相六硼化物。 这些硼化物具有功函数小，机械性能好，蒸气压低的优点，而且当用于热电子发射阴极和场致发射型冷阴极时，它们比现有技术的材料要好得多。

    Ion beam source
    5.
    发明授权
    Ion beam source 失效
    离子束源

    公开(公告)号：US4467240A

    公开(公告)日：1984-08-21

    申请号：US344186

    申请日：1982-01-28

    申请人： Masaaki Futamoto ,  Isamu Yuito ,  Ushio Kawabe

    发明人： Masaaki Futamoto ,  Isamu Yuito ,  Ushio Kawabe

    IPC分类号： H01J1/02 ,  H01J27/00 ,  H01J27/02 ,  H01J27/26 ,  H01J37/08 ,  H01J1/16 ,  H01J19/10

    CPC分类号： H01J27/022 ,  H01J27/26 ,  H01J37/08 ,  H01J2237/0805 ,  H01J2237/0807

    摘要： An ion beam source characterized in that a needle-like tip is comprised of a carbide, a nitride, or a diboride of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb and Ta, a hexaboride of at least one element of rare earth metal elements of atomic numbers 57-70, or carbon. Stable ion beam emission of high brightness and long life can be obtained by using the needle-like tip of the said material.

    摘要翻译： 一种离子束源，其特征在于针状尖端由选自Ti，Zr，Hf，V，Nb和Ta中的至少一种元素的碳化物，氮化物或二硼化物构成，六硼化物 至少一种原子数为57-70的稀土金属元素或碳。 通过使用所述材料的针状尖端可以获得高亮度和长寿命的稳定的离子束发射。

    Cathode for an electron source and a method of producing the same
    7.
    发明授权
    Cathode for an electron source and a method of producing the same 失效
    电子源用阴极及其制造方法

    公开(公告)号：US4193013A

    公开(公告)日：1980-03-11

    申请号：US897406

    申请日：1978-04-18

    申请人： Masaaki Futamoto ,  Ushio Kawabe ,  Shigeyuki Hosoki ,  Tsutomu Komoda ,  Shigehiko Yamamoto

    发明人： Masaaki Futamoto ,  Ushio Kawabe ,  Shigeyuki Hosoki ,  Tsutomu Komoda ,  Shigehiko Yamamoto

    IPC分类号： B44F1/12 ,  H01J1/15 ,  H01J1/304 ,  H01J9/02 ,  H01J9/04 ,  H01J9/18

    CPC分类号： H01J1/15 ,  H01J1/304

    摘要： A cathode for an electron source according to this invention comprises an emitter tip made of an electron emissive material, a filament for holding the emitter tip, and a binder for binding the emitter tip and the filament, the filament and the binder being made of glassy carbon. The binder can have a carbide or boride powder incorporated therein. The cathode according to this invention can be produced by using a thermosetting resin of predetermined shape as the starting material of the filament, fixing the emitter tip to a predetermined position of the thermosetting resin with the adhesive agent made of the raw thermosetting resin, and heating the resultant assembly in a non-oxidizing atmosphere to carbonize the resinous portions. This cathode is structurally very simple. Moreover, the adhesion between the filament and the emitter tip is excellent, and the emitter tip can be heated to high temperatures above 2,000.degree. C. by causing current to flow through the cathode.

    摘要翻译： 根据本发明的用于电子源的阴极包括由电子发射材料制成的发射极尖端，用于保持发射极尖端的灯丝和用于结合发射极尖端和灯丝的粘合剂，灯丝和粘合剂由玻璃状 碳。 粘合剂可以具有并入其中的碳化物或硼化物粉末。 根据本发明的阴极可以通过使用预定形状的热固性树脂作为丝的起始材料，使用由原始热固性树脂制成的粘合剂将发射极尖端固定到热固性树脂的预定位置，并加热 所得组合物在非氧化气氛中以使树脂部分碳化。 该阴极在结构上非常简单。 此外，灯丝和发射极尖端之间的粘附性优异，并且通过使电流流过阴极，可以将发射极尖端加热到高于2000℃的高温。