低温熔盐法制备片状氧化铝

摘要

研究了以氢氧化铝为原料，氯化钠一氯化钾为熔盐，以及熔盐加入量对试样物相的影响。研究结果表明，熔盐加入量为67％时，在1000℃保温4h，得到了结晶完整的，边长为5～10μm，厚度为0．6～1．4μm的片状α～Al2O3；熔盐加入量为50％时，不能得到片状氧化铝。%The effect of flux addition content on product phase was studied, using aluminium hydroxide as raw materials in molten sodium chloride--potassium chloride. The result indicates the crystal plate-like α--Al2O3 were obtained at 1 000℃ for 4h by adding 67% m