蓝宝石与铌合金的高温封接  

High Temperature Vacuum Brazing between Sapphire and Nb Alloy

作　　者：张小勇[1] 陆艳杰[1] 楚建新[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《真空电子技术》2009年第4期39-42,共4页Vacuum Electronics

摘　　要：通过对蓝宝石的钨金属化,实现了蓝宝石与铌合金的高温封接。实验显示钨金属化活化剂氧化钇的含量对封接件真空气密性、封接强度有着显著影响。此外,封接结构也影响着高温封接件的耐热冲击性能。Sapphire and Nb alloy have been successfully brazed by use of tungsten-metallization technique. The experimental results show that the content of Y2O3 in the metal layer on the sapphire affects the vacuum leakage and the bonding strength of sapphire-Nb alloy brazing parts. Furthermore, the sapphire-Nb alloy brazing structures act the key role for the resistance to repeated heat shock.

关 键 词：蓝宝石 铌合金 钨金属化 封接结构 

分 类 号：TB756[一般工业技术—真空技术]