公开(公告)号：US20020024281A1

公开(公告)日：2002-02-28

申请号：US09971226

申请日：2001-10-03

Applicant: NEW JAPAN RADIO CO., LTD.

Inventor： Hiroyuki Miyamoto ,  Misao Iseki ,  Manabu Arai ,  Hideaki Tamai ,  Chikao Kimura

IPC: H01J001/14 ,  H01J019/06

CPC classification number: H01J1/144

Abstract: There is provided a cathode which is easily operable, harmless, and stable at high temperature at least 1,400null C. as well as excellent in electron emission characteristics at the same time, and the process for preparing the same. The cathode of the present invention comprises a polycrystalline substance or a polycrystalline porous substance of high-melting point metal material and an emitter material dispersed into said polycrystalline substance or polycrystalline porous substance in an amount of 0.1 to 30% by weight in the cathode, wherein the emitter material comprises at least one selected from the group consisting of hafnium oxide, zirconium oxide, lanthanum oxide, cerium oxide and titanium oxide.

Abstract translation: 提供了一种在高温至少1400℃下易于操作，无害且稳定的阴极，同时具有优异的电子发射特性及其制备方法。 本发明的阴极包括在阴极中以0.1〜30重量％的量分散在所述多晶体或多晶多孔物质中的高熔点金属材料的多晶体或多晶多孔物质和发射体材料，其中， 发射极材料包括选自氧化铪，氧化锆，氧化镧，氧化铈和氧化钛中的至少一种。

公开(公告)号：US20020024280A1

公开(公告)日：2002-02-28

申请号：US09934212

申请日：2001-08-21

Applicant: NEW JAPAN RADIO CO., LTD.

Inventor： Hiroyuki Miyamoto ,  Misao Iseki ,  Manabu Arai ,  Hideaki Tamai ,  Chikao Kimura

IPC: H01J001/14

CPC classification number: H01J1/144

Abstract: There is provided a cathode which is easily operable, harmless, and stable at high temperature at least 1,400null C. as well as excellent in electron emission characteristics at the same time, and the process for preparing the same. The cathode of the present invention comprises a polycrystalline substance or a polycrystalline porous substance of high-melting point metal material and an emitter material dispersed into said polycrystalline substance or polycrystalline porous substance, wherein 0.1 to 30% by weight of at least one selected from the group consisting of hafnium oxide, zirconium oxide, lanthanum oxide, cerium oxide and titanium oxide is dispersed in said emitter material.

Abstract translation: 提供了一种在高温至少1400℃下易于操作，无害且稳定的阴极，同时具有优异的电子发射特性及其制备方法。 本发明的阴极包括分散在所述多晶体或多晶多孔物质中的高熔点金属材料和发射体材料的多晶体或多晶多孔物质，其中，0.1〜30重量％的选自 由氧化铪，氧化锆，氧化镧，氧化铈和氧化钛组成的组分散在所述发射极材料中。