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中文摘要：
采用自蔓延高温合成工艺，原位合成了ZrC／Cu复合材料。利用DTA、XRD、FE-SEM等手段，研究了自蔓延高温合成ZrC／Cu复合材料的反应行为。实验结果表明，随着Cu含量的增加，Cu-Zr-C体系的燃烧温度逐渐降低，且合成产物中ZrC颗粒尺寸亦随之减小，其形貌从不含Cu时的无规则的大块状转变为含30％（质量分数）Cu时的纳米级的小球状。ZrC／Cu复合材料中只有ZrC颗粒和Cu两相存在，并无Cu-Zr中间相形成。DTA热分析的结果显示反应起始于912℃时生成的Cu10Zr7中间亚稳相，然后在987℃生成CuZr2中间相，当温度达到1022℃，将会生成部分的ZrC，继续加热到1098℃，Cu开始熔化，最后温度为1232℃时，Zr与C发生剧烈反应从而合成大量的ZrC。
英文摘要：
ZrC/Cu composites were in situ fabricated in Cu-Zr-C system by self-propagating high-temperature synthesis （SHS）. Using DTA, XRD, FESEM analysis, the reaction behavior of in situ synthesizing ZrC/Cu composites in Cu-Zr-C system was discussed. The results showed that with the increasing of Cu contents, the combustion temperature decreased, the ZrC particle size reduced too. The formation of ZrC and Cu was confirmed and morphology of the ZrC particulates changed from the irregular large blocks without the Cu content to the nano-scale spheres with 30wt% Cu. In DTA analysis, Cu10Zr7 and CuZr2 metastable phase were formed at 912 and 987℃, respectively. A few ZrC were formed at 1022℃. When heated to 1098℃, Cu began to melt. Finally, a mass of ZrC were fabricated at 1232℃.
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