详细报告了采用粉末x射线衍射(XRD)和差热分析(DTA)技术研究(14-x)SrCO3-xCaCO3-24CuO系统在环境压力下低于1000 ℃温度范围内固态反应过程中物相的演变的结果.根据实验,当钙的掺入量x=8.4,11.2,13.6和14时,该系统的固态反应过程比较复杂,1000 ℃下得到的样品都是多相物;在945 ℃附近新观测到了一个尚未鉴定的相,它与其DTA曲线上第三个吸热峰相吻合.对于x=0,0.4,2.8和5.6的样品,其固态反应的规律非常相似:
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