以CaCO3、Fe2O3为原料,采用高能球磨结合热处理的工艺,制备了Ca2Fe2 O5粉体.借助X射线衍射分析、扫描电子显微镜测试手段,分析了球磨时间与热处理条件等工艺因素对合成Ca2 Fe2 O5粉体物相及形貌的影响.同时根据球磨3h原料差热曲线分析结果,得到了材料合成温度及温度范围与实验结果相符合,并探讨了高能球磨对产物合成的影响机理.结果表明:高能球磨能够降低铁酸钙粉体的合成温度,在球磨3h,800℃热处理24h的条件下,可以得到高纯度的Ca2 Fe2 O5粉体,同时球磨时间对热处理后粉体的颗粒形貌也有影响.
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