采用Cu68Ti20Ni12钎料进行了Si3N4/Si3N4的活性钎焊连接.结果表明:钎焊温度和时间对连接强度有重要影响;在1373 K,10 min的连接条件下,Si3N4/Si3N4连接强度达到最大值289 MPa.通过对Si3N4l/Cu68Ti20Ni12界面区的微观分析:发现Ti,Ni明显向Si3N4方向富集,相对Ni而言,Ti的富集区更靠近Si3N4陶瓷,而Si则向钎料方向扩散,Cu在接头中心富集;界面区存在2层反应层,反应层Ⅰ为TiN层,而反应层Ⅱ则由TiN,Ti5Si4,Ti5Si3,Ni3Si及NiTi化合物组成.
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