公开(公告)号：US20100019646A1

公开(公告)日：2010-01-28

申请号：US12309667

申请日：2006-07-31

Applicant: Charles M. Lukehart ,  Jason A. Michel ,  Timothy Fisher ,  Vance Robinson

Inventor： Charles M. Lukehart ,  Jason A. Michel ,  Timothy Fisher ,  Vance Robinson

IPC: H01J1/142 ,  H01B1/24

CPC classification number: C22C49/02 ,  C22C49/14

Abstract: A carbon-based composition comprising graphite carbon nano-fibers intercalated with a metal useful as a thermionic electron emission material.

Abstract translation: 一种碳基组合物，其包含插入有用作热电子发射材料的金属的石墨碳纳米纤维。

公开(公告)号：US6091189A

公开(公告)日：2000-07-18

申请号：US771916

申请日：1996-12-23

Applicant: Takashi Shinjo ,  Riichi Kondo ,  Masato Saito ,  Takuya Ohira ,  Hiroyuki Teramoto ,  Kinjirou Sano

Inventor： Takashi Shinjo ,  Riichi Kondo ,  Masato Saito ,  Takuya Ohira ,  Hiroyuki Teramoto ,  Kinjirou Sano

IPC: H01J1/142 ,  H01J1/26 ,  H01K1/04

CPC classification number: H01J1/142 ,  H01J1/26

Abstract: A cathode for an electron tube including a base body having nickel as a major component and including at least one kind of reducing agents, a metal member in a layer-like shape, which has as a major component a metal provided with a reducing power equivalent to or smaller than a reducing power of the at least one kind of reducing agents included in the base body and larger than a reducing power of nickel and which is formed on faces of the base body, an electron emitting substance layer formed by depositing alkaline earth metal oxides including barium on the metal member, wherein the metal member is formed on the faces of the base body such that the base body is restrained from deforming by thermal stresses of intermetallic compounds formed at portions of the base body bounded with the metal member.

Abstract translation: 一种电子管的阴极，其包括以镍为主要成分的基体，并且包括至少一种还原剂，层状形式的金属构件，其具有作为主要组分的金属，该金属具有还原能当量 至少包含在所述基体中的所述至少一种还原剂的还原力大于或小于所述基体的表面上形成的还原能力的电子发射物质层，所述电子发射物质层通过沉积碱土 在金属构件上的包含钡的金属氧化物，其中金属构件形成在基体的表面上，使得通过在与金属构件界定的基体的部分处形成的金属间化合物的热应力来限制基体变形。

公开(公告)号：US5982083A

公开(公告)日：1999-11-09

申请号：US744453

申请日：1996-11-07

Applicant: Gyu-Nam Ju ,  Jong-Seo Choi ,  Keun-Bae Kim ,  Kwang-Min Lee ,  Kwi-Seok Choi ,  Su-Chan Lee ,  Sang-Jin Lee

Inventor： Gyu-Nam Ju ,  Jong-Seo Choi ,  Keun-Bae Kim ,  Kwang-Min Lee ,  Kwi-Seok Choi ,  Su-Chan Lee ,  Sang-Jin Lee

IPC: H01J1/142 ,  H01J1/13

CPC classification number: H01J1/142

Abstract: 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.

Abstract translation: 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％。

公开(公告)号：US5871088A

公开(公告)日：1999-02-16

申请号：US913821

申请日：1998-01-16

Applicant: Kouji Tanabe

Inventor： Kouji Tanabe

IPC: H01J29/04 ,  C09K11/02 ,  H01H13/702 ,  H01H13/785 ,  H01J1/142 ,  H01J9/04 ,  H05B33/00 ,  H05B33/10 ,  H05B33/12 ,  H05B33/20 ,  H05B33/22 ,  H05B33/26 ,  H05B33/28 ,  H01N9/00 ,  H01H13/70

CPC classification number: H01H13/785 ,  C09K11/02 ,  H01H13/702 ,  H01J1/142 ,  H01J9/042 ,  H05B33/00 ,  H05B33/10 ,  H05B33/12 ,  H05B33/20 ,  H05B33/22 ,  H05B33/26 ,  H05B33/28 ,  H01H2201/032 ,  H01H2209/002 ,  H01H2219/018

Abstract: An EL sheet diaphragm including a diffusion type EL sheet having a diaphragm portion exhibiting a dome shape and a flange supporting portion disposed about the outer circumference of the diffusion type EL sheet. The diffusion type EL sheet including a transparent film having an upper surface and a lower surface, a transparent electrode layer formed on the lower surface of the transparent film, a light emitting layer formed on the transparent electrode, a dielectric layer formed on the light emitting layer, a rear electrode layer formed on the dielectric layer, and an insulating layer formed on the rear electrode layer. The diffusion type EL sheet emits light from the diaphragm portion of the upper surface of the transparent film. The diffusion type EL sheet bows outwardly in an at-rest state such that the upper surface of the transparent film exhibits a convex shape, and bows inwardly when depressed for operation such that the upper surface of the transparent film exhibits a concave shape.

Abstract translation: PCT No.PCT / JP96 / 00831 Sec。 371日期1998年1月16日 102（e）日期1998年1月16日PCT提交1996年3月28日PCT公布。 第WO96 / 30919号公报 日期：1996年10月3日包括具有圆顶形状的隔膜部分的扩散型EL片和围绕扩散型EL片的外周设置的凸缘支撑部的EL片。 扩散型EL片，包括具有上表面和下表面的透明膜，形成在透明膜的下表面上的透明电极层，形成在透明电极上的发光层，形成在发光 层，形成在电介质层上的后电极层和形成在后电极层上的绝缘层。 扩散型EL片从透明膜的上表面的隔膜部发射光。 扩散型EL片在静止状态下向外弯曲，使得透明膜的上表面呈凸形，并且在按压操作时向内弯曲，使得透明膜的上表面呈凹形。

公开(公告)号：US4864187A

公开(公告)日：1989-09-05

申请号：US864566

申请日：1986-05-16

Applicant: Kinjiro Sano ,  Toyokazu Kamata ,  Keiji Fukuyama ,  Masato Saito ,  Keiji Watanabe

Inventor： Kinjiro Sano ,  Toyokazu Kamata ,  Keiji Fukuyama ,  Masato Saito ,  Keiji Watanabe

IPC: H01J1/20 ,  H01J1/142 ,  H01J1/28 ,  H01J9/04

CPC classification number: H01J1/142 ,  H01J9/042

Abstract: A cathode for an electron tube in accordance with the present invention comprises: a base containing not only nickel as a major element but also a reducing agent; a layer of an electron-emissive substance which is applied to the base and contains not only an alkaline earth metal oxide as a principal component but also a scandium oxide; and a heater for heating the layer.

Abstract translation: 根据本发明的电子管的阴极包括：不仅含有镍作为主要元素，而且还含有还原剂; 电子发射物质的一层，其被施加到基底并且不仅包含碱土金属氧化物作为主要成分，而且包含氧化钪; 以及用于加热该层的加热器。

公开(公告)号：US2963450A

公开(公告)日：1960-12-06

申请号：US72164558

申请日：1958-03-17

Applicant: INTERLECTRIC CORP

Inventor： SCHOLES ADDISON B

IPC: H01J1/142 ,  H01K3/02

CPC classification number: H01J1/142 ,  H01K3/02

公开(公告)号：US2208692A

公开(公告)日：1940-07-23

申请号：US26362939

申请日：1939-03-23

Applicant: RCA CORP

Inventor： WAMSLEY DELOS H

IPC: H01J1/142 ,  H01J7/18

CPC classification number: H01J7/183 ,  H01J1/142

公开(公告)号：US10714292B2

公开(公告)日：2020-07-14

申请号：US15665659

申请日：2017-08-01

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Neville C. Luhmann, Jr. ,  Gordon Soekland ,  Diana Gamzina ,  Na Li

IPC: H01J9/04 ,  C04B35/624 ,  C04B35/626 ,  C04B35/64 ,  C04B35/495 ,  C04B35/50 ,  H01J1/146 ,  H01J1/142 ,  C01G41/00

Abstract: Methods for fabricating refractory metal scandate nanocomposite powders with homogeneous microstructured refractory metal grains and a uniform nanosized dispersion of scandia are provided. The powders prepared by the sol-gel methods have a spherical morphology, a narrow distribution of particle sizes and a very uniform dispersion of nanosized scandia particles joined to the tungsten grains. The powder particle sizes can range from nanometers to micrometers. The powders can be pressed into porous cathode structures that can be impregnated with emissive materials to produce high current density and long life cathodes for high-power terahertz vacuum electron devices. The sol-gel fabrication methods allow control over the materials, particle size, particle composition and pore size and distribution of the cathode structure by manipulation of the process parameters.

公开(公告)号：US10679816B1

公开(公告)日：2020-06-09

申请号：US15644704

申请日：2017-07-07

Applicant: Los Alamos National Security, LLC

Inventor： Nathan Moody ,  Gautam Gupta ,  Aditya Mohite

IPC: H01J1/142 ,  H01J9/04

Abstract: According to an embodiment of the present disclosure, a thermionic cathode includes: a cathode body having an outer surface, and a sealing layer including one or more graphene sheets on the outer surface of the cathode body. According to another embodiment of the present disclosure, a method for manufacturing a thermionic cathode includes: depositing a sealing layer including one or more graphene sheets on an outer surface of a cathode body.

公开(公告)号：US20180158639A1

公开(公告)日：2018-06-07

申请号：US15869352

申请日：2018-01-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： GEORG FRIEDRICH GAERTNER ,  WILHELMUS CORNELIS KEUR

IPC: H01J1/142 ,  C23C14/08 ,  H01J23/04 ,  C23C14/34 ,  H01J1/28

CPC classification number: H01J1/142 ,  C23C14/082 ,  C23C14/3414 ,  H01J1/28 ,  H01J23/04

Abstract: The invention relates to the field of production of barium-scandate dispenser cathodes or other barium-scandate materials. A target (66) containing a mixture of BaO, CaO, Al2O3 and Sc2O3 tends to be more stable, the higher the scandia (scandium oxide) content is. However, an increased scandia content results in a reduced emission capability. A destabilizing effect of BaO and CaO reactions is counteracted by the more inert Sc2O3 and also Al2O3 components, as not only an increased scandia content stabilizes the material but also an increased alumina (aluminum oxide) content improves the stability.