以Ca(OH)2、H3PO4和CaCO3为原料,采用超声波辅助中和法快速制备了纳米含碳酸根羟基磷灰石.采用TEM、XRD、IR方法对CHA进行了表征,并研究了CHA的取代类型及其热稳定性.结果表明:超声加速合成的粉末为直径约20 nm,长度约70 nm的针状纳米B型碳酸根羟基磷灰石;煅烧温度对产物的相组成和CO32-的含量有显著影响,在700 ℃时,CHA稳定存在,CHA在1100 ℃以上分解成HA和CaO,并脱出部分CO2.超声辅助合成是一种快速制备热稳定纳米碳酸羟基磷灰石的有效方法.
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