原位合成Cu / TiC材料的热力学计算
Thermo-dynamics Calculation for Synthesis of Cu / TiC Composite by In-situ Method
燕 鹏1, 林晨光1, 崔 舜1, 张红菊2
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作者单位：(1.北京有色金属研究总院 粉末冶金与特种材料研究所, 北京 100088; 2. 北京有色金属研究总院 国家有色金属及电子材料分析测试中心, 北京 100088 )
中文关键字：Cu-Ti-C； 原位合成； 热力学； 反应球磨
英文关键字：Cu-Ti-C; in-situ synthesis; thermo-dynamic; reaction milling
中文摘要：比较了Cu-Ti-C三元系中各种可能反应的标准吉布斯自由能，同时利用循环试算法计算了Cu-Ti-C反应体系的绝热温度和Cu的熔化率。结果表明： TiC为热力学最稳定产物，制备Cu / TiC在热力学上是可行的；随着Cu含量的增加，反应变得困难，自蔓延燃烧合成法不宜制备低TiC含量的材料；提高预热温度，反应变得容易；反应体系的绝热温度和Cu的熔化率都与预热温度有关。
英文摘要：The standard formation free energy of compounds in Cu-Ti-C ternary system were calculated at different temperature. The adiabatic temperatures and molten ratios of copper were obtained. The results reveal that TiC is more stable than the other compounds which maybe exists in this system; it is feasible to synthesize Cu / TiC composite by in-situ method. The reaction becomes more difficult with the increase of copper content, but easier with the increase of initial temperature, so it is hard to prepare Cu /TiC composite with low content of TiC. The adiabatic temperature and molten ratio of copper are related with the initial temperature.