用Ti3SiC2粉末作为焊料,采用热压反应烧结连接法连接SiC,通过正交实验,研究了连接温度、高温保温时间、连接压力和连接层厚度对试样连接强度的影响,优选出的最佳工艺参数分别为:1 500℃,30 min,30MPa,150 μm.所得到的接头最大剪切强度为39.49 MPa.微观结构研究和成分分析表明:在界面处,发生了元素的扩散,促进了界面结合,有明显的反应扩散层.物相分析显示在高温、高压、氩气气氛以及使用石墨模具的条件下,Ti3SiC2与母材发生界面反应,实现界面结合.
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