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用合金化的Ag-Cu-Ti粉及SiC粉组成的混合粉末钎料,真空无压钎焊SiC陶瓷和Ti合金.研究结果表明,在Ag-Cu-Ti粉末钎料中加入15vol%~30vol%SiC粉末能明显降低接头热应力,获得完整的SiC颗粒增强的复合接头.加入的SiC颗粒、SiC陶瓷母材均与连接层中的Ti起反应,形成表面反应层Ti3SiC2及分布于Ag-Cu-Ti合金中的Ti-Si化合物,随SiC颗粒增加,反应层变薄.连接层中的Cu元素与连接的Ti合金相互扩散,形成Cu-Ti相界面扩散带.

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