利用水热法合成羟基磷灰石晶须(HAw),采用浆料-粉末冶金法制备羟基磷灰石晶须/镁金属基复合材料(HAw/Mg).用XRD、FTIR、FESEM和TG对材料进行表征.分析了尿素含量对HA物相和晶体结构的影响,以及HAw/Mg复合材料的热稳定性和显微结构.结果表明:在本实验条件下,得到的产物均为带状、含碳酸根的HAw;随着尿素添加量的增加,HAw逐渐变长且结晶度增加;HAw与Mg之间在600℃以下无化学反应,且HA不会加剧Mg的氧化;HAw在HAw/Mg复合材料中分散均匀,不易折断.
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