公开(公告)号：US5519280A

公开(公告)日：1996-05-21

申请号：US216019

申请日：1994-03-21

Applicant: Kyung-cheon Shon ,  Jong-seo Choi ,  Kwi-seok Choi ,  Gyu-nam Ju ,  Sang-won Lee

Inventor： Kyung-cheon Shon ,  Jong-seo Choi ,  Kwi-seok Choi ,  Gyu-nam Ju ,  Sang-won Lee

IPC: H01J1/14 ,  H01J1/142 ,  H01J1/20

CPC classification number: H01J1/142

Abstract: 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.

Abstract translation: 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％。

公开(公告)号：US4797593A

公开(公告)日：1989-01-10

申请号：US886777

申请日：1986-07-17

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

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

IPC: H01J1/142 ,  H01J1/02

CPC classification number: H01J1/142

Abstract: This invention is a cathode of an indirect heated type having improved electron emission characteristics.A cathode for an electron tube in accordance with the present invention comprises: a base containing Ni as a major element; and a layer of an electron-emissive substance formed on the base, this layer comprising not only alkaline earth metal oxide as a principal component containing at least Ba, but also rare earth metal oxide of 0.1 to 20 wt. % or rare earth metal of 0.05 to 15 wt. %.

Abstract translation: 本发明是具有改善的电子发射特性的间接加热型阴极。 根据本发明的电子管阴极包括：含有Ni作为主要元素的基底; 和形成在基底上的电子发射物质层，该层不仅包含碱土金属氧化物作为至少含有Ba的主要成分，而且还包含0.1-20重量％的稀土金属氧化物。 ％或稀土金属为0.05〜15wt。 ％。

公开(公告)号：US3535149A

公开(公告)日：1970-10-20

申请号：US3535149D

申请日：1968-06-13

Applicant: SYLVANIA ELECTRIC PROD

Inventor： DUNN RICHARD ,  MACINNIS MARTIN B ,  MEHALCHICK EMIL J

IPC: H01J1/142 ,  C23C3/04

CPC classification number: H01J1/142 ,  Y10T428/29

公开(公告)号：US2161790A

公开(公告)日：1939-06-13

申请号：US74030134

申请日：1934-08-17

Applicant: LUMINELES

Inventor： MARCEL ABADIE JEAN BAPTISTE JO

IPC: H01J1/142 ,  H01J9/04

CPC classification number: H01J1/142 ,  H01J9/042 ,  Y10S428/941 ,  Y10T428/12493 ,  Y10T428/12729

公开(公告)号：US1870951A

公开(公告)日：1932-08-09

申请号：US29203728

申请日：1928-07-11

Applicant: WESTINGHOUSE LAMP CO

Inventor： FREDENBURGH MARK N

IPC: H01J1/142 ,  H01J9/04

CPC classification number: H01J9/042 ,  H01J1/142

公开(公告)号：US09646796B1

公开(公告)日：2017-05-09

申请号：US14218680

申请日：2014-03-18

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY

Inventor： Jin-Shu Wang ,  Wei Liu ,  Li-Ran Dong ,  Qiang Wang ,  Xiang Liu ,  Fan Zhou ,  Mei-Ling Zhou ,  Tie-Yong Zuo

IPC: H01J19/06 ,  H01K1/04 ,  H01J1/14 ,  H01J1/28 ,  H01J1/142 ,  H01J1/20 ,  H01J9/04

CPC classification number: H01J1/28 ,  H01J1/14 ,  H01J1/142 ,  H01J1/20 ,  H01J9/042

Abstract: A method of manufacturing carburized Lu2O3 doped Mo cathodes for thermionic emission for magnetrons is described. The Lu2O3 doped Mo powder is prepared by sol-gel method. The powder is reduced thoroughly in hydrogen atmosphere. Afterwards, the powder is die-pressed into pellets, followed by sintering in hydrogen and carburization in activated carbon powder to obtain the carburized Lu2O3 doped Mo cathode.

公开(公告)号：US20160300684A1

公开(公告)日：2016-10-13

申请号：US15093853

申请日：2016-04-08

Applicant: The Government of the United States of America, as represented by the Secretary of the Navy

Inventor： Boris N. Feigelson ,  James A. Wollmershauser ,  Kedar Manandhar

IPC: H01J9/04 ,  B22F9/22 ,  H01J1/144 ,  B22F3/14 ,  B22F5/00 ,  H01J1/146 ,  B22F1/02 ,  B22F1/00

CPC classification number: H01J9/042 ,  B22F1/02 ,  B22F3/26 ,  B22F2998/10 ,  B22F2999/00 ,  H01J1/142 ,  H01J1/144 ,  H01J1/146 ,  H01J1/28 ,  B22F3/14 ,  B22F1/0088 ,  B22F2201/013 ,  B22F1/0085 ,  B22F3/02 ,  B22F3/11

Abstract: A thermionic dispenser cathode having a refractory metal matrix with scandium and barium compounds in contact with the metal matrix and methods for forming the same. The invention utilizes atomic layer deposition (ALD) to form a nanoscale, uniform, conformal distribution of a scandium compound on tungsten surfaces and further utilizes in situ high pressure consolidation/impregnation to enhance impregnation of a BaO-CaO-Al2O3 based emissive mixture into the scandate-coated tungsten matrix or to sinter a tungsten/scandate/barium composite structure. The result is a tungsten-scandate thermionic cathode having improved emission.

Abstract translation: 具有与金属基体接触的钪和钡化合物的难熔金属基体的热离子分配器阴极及其形成方法。 本发明利用原子层沉积（ALD）在钨表面上形成钪化合物的纳米尺度均匀的共形分布，并进一步利用原位高压固结/浸渍以增强BaO-CaO-Al 2 O 3基发射混合物的浸渍 钪酸盐涂层的钨基体或烧结钨/钪酸盐/钡复合结构。 结果是具有改善的发射的钨 - 钪酸盐热阴极。

公开(公告)号：US20140174913A1

公开(公告)日：2014-06-26

申请号：US14236145

申请日：2012-07-31

Applicant: Georg Friedrich Gaertner ,  Wilhelmus Cornelis Keur

Inventor： Georg Friedrich Gaertner ,  Wilhelmus Cornelis Keur

IPC: H01J1/142 ,  C23C14/34

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-scan-date 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 AI2O3 components, as not only an increased scandia content stabilizes the material but also an increased alumina (aluminum oxide) content improves the stability.

Abstract translation: 本发明涉及钡 - 钪酸盐分配器阴极或其它钡扫描日期材料的生产领域。 包含BaO，CaO，Al 2 O 3和SC 2 O 3的混合物的靶（66）倾向于更稳定，所述Scandia（钪氧化物）含量越高。 然而，增加的scandia含量会降低排放能力。 BaO和CaO反应的不稳定作用被更为惰性的SC2O3和Al2O3组分所抵消，因为不仅增加了Scandia含量，而且氧化铝（氧化铝）含量的增加也提高了稳定性。

公开(公告)号：US20130105742A1

公开(公告)日：2013-05-02

申请号：US13340701

申请日：2011-12-30

Applicant: Jinshu Wang ,  Wei Liu ,  Fan Yang ,  Xiang Liu ,  Hongyi Li ,  Meiling Zhou ,  Tieyong Zuo

Inventor： Jinshu Wang ,  Wei Liu ,  Fan Yang ,  Xiang Liu ,  Hongyi Li ,  Meiling Zhou ,  Tieyong Zuo

IPC: H01B1/08 ,  B28B3/00 ,  B28B11/00 ,  B05D5/12

CPC classification number: H01J1/142 ,  H01J1/13 ,  H01J1/14 ,  H01J1/144 ,  H01J9/047 ,  H01J23/05

Abstract: Impregnated rare earth metal-containing barium-aluminum-scandate cathodes with a rare earth oxide doped tungsten matrix and methods for the fabrication thereof are described. In one aspect, an impregnated rare earth metal-containing barium-aluminum-scandate cathode comprises: a rare earth oxide doped tungsten matrix, and an impregnated active substance. The active substance comprises scandium oxide (Sc2O3), a second rare earth oxide, and barium calcium aluminate, wherein the molar ratio of Ba:Ca:Al is about 4:1:1.

Abstract translation: 描述了具有稀土氧化物掺杂钨基体的含浸稀土金属的钡 - 铝 - 钪酸盐阴极及其制造方法。 一方面，含浸稀土金属的钡 - 铝 - 钪酸盐阴极包括：掺杂稀土氧化物的钨基体和浸渍的活性物质。 活性物质包含氧化钪（Sc 2 O 3），第二稀土氧化物和铝酸钡钙，其中Ba:Ca:Al的摩尔比为约4:1:1。

公开(公告)号：US20050007004A1

公开(公告)日：2005-01-13

申请号：US10882226

申请日：2004-07-02

Applicant: Gyeong Sang Lee ,  Young Ho Park

Inventor： Gyeong Sang Lee ,  Young Ho Park

IPC: H01J29/04 ,  H01J1/142 ,  H01J1/20 ,  H01J19/14

CPC classification number: H01J1/20 ,  H01J1/142

Abstract: A cathode for a cathode ray tube with an improved emissivity of electrons is provided. The cathode includes a base metal and an electron emitting material layer containing an alkline earth metal oxide having barium, wherein the base metal has nickel as a main ingredient and contains a reducing metal with a high diffusion speed and a reducing metal with a low diffusion speed; and the electron emitting material layer comprises activating metal(s).

Abstract translation: 提供了具有改善的电子发射率的用于阴极射线管的阴极。 阴极包括贱金属和含有具有钡的碱土金属氧化物的电子发射材料层，其中贱金属以镍为主要成分，并含有高扩散速度的还原金属和低扩散速度的还原金属 ; 并且电子发射材料层包括活化金属。