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对CuO Al粉末预制块经不同温度下反应,测试其温度随时间的变化曲线,利用X射线衍射仪对其反应后的试样进行物相分析,得出产生热爆的反应温度及不同温度下的反应产物。结果表明,CuO Al体系反应随介质温度升高,可分为3个不同阶段,温度小于1200K,不发生化学反应;温度为1200～1473K时CuO Al体系发生部分化学反应,其产物为Cu2O、CuAlO2及Al2O3;温度高于1473K,CuO Al体系发生化学反应,其产物为Cu和Al2O3,此阶段易出现热爆现象。
The CuO Al powder preform was reacted at different temperatures to test its temperature curve with time. The phase analysis of the samples after the reaction was carried out by X-ray diffractometer. The reaction temperature and temperature at different temperatures Of the reaction product. The results show that the reaction of CuO Al system can be divided into three different stages with the increase of the temperature of the medium. The reaction temperature is less than 1200K and no chemical reaction takes place. The CuO Al system undergoes partial chemical reaction at 1200 ~ 1473K, the products are Cu2O, CuAlO2 And Al2O3; the temperature is higher than 1473K, CuO Al system chemical reaction, the product is Cu and Al2O3, this stage prone to thermal explosion phenomenon.