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以铁合金厂铝钛渣为主要原料,通过高温固相反应制备CT/CA6复相材料,研究了不同Er2O3加入量及煅烧温度对合成材料结晶性能影响。利用XRD、SEM及相关分析软件对烧后试样中结晶相的晶胞参数、晶胞体积、相对结晶度及微观结构进行计算和分析。结果表明,通过改变煅烧温度和添加剂氧化铒用量可以实现对合成材料中结晶相缺陷数量以及结构中液相量的控制,改善材料中结晶相的结晶性能,同时合成材料中钙钛矿和六铝酸钙晶胞参数会出现规律性变化。加入0.8%氧化铒的CT/CA6材料经1500℃烧后试样的相对结晶度较高,微观结构中结晶相的结晶性能较好。
Taking ferroalloy plant Al-Ti slag as the main raw material, CT / CA6 composite materials were prepared by high-temperature solid-state reaction. The effects of different Er2O3 dosage and calcination temperature on the crystallization properties of the composites were studied. The crystal cell parameters, cell volume, relative crystallinity and microstructure of the crystalline phase in the calcined sample were calculated and analyzed by XRD, SEM and correlation analysis software. The results show that by changing the calcination temperature and the amount of erbium oxide additive, the number of crystal phase defects in the composite material and the amount of liquid phase in the structure can be controlled so as to improve the crystallization performance of the crystalline phase in the material. Meanwhile, perovskite and six aluminum Calcium cell parameters will appear regular changes. The relative crystallinity of CT / CA6 with 0.8% erbium oxide after calcination at 1500 ℃ is high, and the crystalline phase in the microstructure is better.