【摘要】 探讨了用Ｎｉ－Ｔｉ高温合金对Ａｌ２Ｏ３陶瓷与金属Ｎｂ的封接行为．结果表明，Ｎｉ－Ｔｉ钎料对Ａｌ２Ｏ３陶瓷有良好的润湿性及高的焊后界面强度．钎料中的Ｔｉ与Ａｌ２Ｏ３中的Ｏ在反应界面上富集和结合是两种材料实现连接的原因．Ｎｂ溶入钎料中对减弱界面残余应力、提高强度有利更多还原

【Abstract】 The braze welding behaviour of Al 2O 3/Nb with Ni Ti high temperature alloy was investigated. It was shown that the wet ability of Ni Ti solder to Al 2O 3 was good, which brought about high welding interface strength. The junction between the two materials was attributed to the accumulating and binding of Ti in the solder and O in Al 2O 3 along the reaction interface. The solution of Nb into the solder was helpful to decrease the residual stress at the interface and increase the binding strength.更多还原