| 简介 |
PROBLEM TO BE SOLVED : To solve a problem occurring in aspect of durability and the possibility of a long period use, resulting from damage and deterioration caused by a high temperature chemical reaction on a junction face between a rare-earth hexaboride single crystal nanofiber and a heat-resistant support metal needle, which is generated in a high temperature use process, when joining the rare-earth hexaboride single crystal nanofiber of lanthanum hexaboride or the like to the heat-resistant metal support needle, to be used as a hot-cathode electron emission source.
SOLUTION : This hot-cathode electron emission source is constituted to form at least a junction portion of the heat-resistant metal support needle contacting with the rare-earth hexaboride single crystal nanofiber, of a heat resistant material not reacting chemically with the nanofiber even at a high temperature.
COPYRIGHT : (C)2011, JPO&INPIT |
客服热线：
手机版
二维码
