摘要
为有效控制纳米羟基磷灰石粉体的团聚,以硝酸钙和磷酸氢二铵为原料,超声波辅助下合成了纳米羟基磷灰石粉体,并对其进行了900℃的热处理。借助X射线衍射(XRD)、红外吸收光谱(FTIR)、扫描电子显微镜(SEM)、热重差热分析(TG-DTA)对合成的羟基磷灰石进行了物相组成、化学组成、微观形貌、热稳定性的研究。结果表明合成的羟基磷灰石为50 nm左右均匀分散的等轴晶,超声处理有效控制了纳米粉体的团聚,热处理能显著提高羟基磷灰石晶粒的结晶度。
To solve the reunion problem of nano hydroxyapatite（HA） powders,the HA was prepared with the aid of ultrasonic wave and heated in 900 ℃,using Ca（NO3）2·4H2O and（NH4）2HPO4 as raw materials.The phase composition,chemical composition,micromorphology,thermal stability of the obtained HA were respectively studied by XRD,SEM,FTIR and TG-DTA.The results indicated that the micromorphology of synthesized HA with a mean size of 50 nm was an isometric crystal and its uniformity and dispersity was good.The ultrasonic wave treatment of nano-scale powders could solve the reunion problem to a certain extent,and heat-treatment could improve the crystallinity of HA grains.
出处
《山东大学学报（工学版）》
CAS
北大核心
2011年第1期54-57,共4页
Journal of Shandong University（Engineering Science）
关键词
纳米羟基磷灰石
超声波
热处理
nano-hydroxyapatite
ultrasonic wave
heat treatment
