中文摘要：

研究了Ti含量（0wt%~7wt%）对Au-18Ni合金钎料性能的影响。结果表明：Ti的加入提高了钎料合金的峰值温度,对起始点温度影响不大;随着Ti含量的增加,钎料在95Al_2O_3陶瓷上铺展面积增大,润湿角减小;Ti提高了钎料对95Al_2O_3陶瓷的润湿性。采用扫描电镜和能谱分析仪分析界面的显微结构和元素变化趋势,得出了（Au-18Ni）＋5Ti钎料钎焊的95Al_2O_3/1Cr18Ni9Ti接头效果良好的主要原因是活性元素Ti与95Al_2O_3发生反应而引起界面能的变化所致。

英文摘要：

The effects of contents of Ti（0%-7%）on the performance of Au-18 Ni alloy solder were researched. The results show that adding Ti enhances the peak temperature of the alloy solder, but has a little impact on the initial temperature. With the increase of Ti content, the spreading area of the solder on 95Al_2O_3 ceramic increases, but the wetting angle reduces. Ti improves the wettability of the solder on 95Al_2O_3. The microstructure and elements change trend of the interface were analyzed by scanning eletron microscope（SEM） and energy dispersive system（EDS）, then we find that the main reason that95Al_2O_3/1Cr18Ni9 Ti joint brazed by（Au-18Ni）＋5Ti solder has a good effect is because that active element Ti reacting with95Al_2O_3 and causes some change of interface energy.