【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。更多还原

【Abstract】 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.更多还原