煅烧对离心雾化制备羟基磷灰石微球结构和性能的影响  

Effect of sintering on microstructure and properties of hydroxyapatite microspheres by centrifugul atomizing spray-drying process

作　　者：焦燕[1,2] 吕宇鹏[1,2] 肖桂勇[1,2] 孙圣淋[1,2] 许文花[1,2] 朱瑞富[1,2] 

机构地区：[1]山东大学材料液固结构演变与加工教育部重点实验室,山东济南250061 [2]山东大学材料科学与工程学院,山东济南250061

出　　处：《材料热处理学报》2012年第7期1-4,共4页Transactions of Materials and Heat Treatment

基　　金：山东省自然科学基金(ZR2009FM023);山东大学自主创新基金项目(2009TS002)

摘　　要：在较低温度下对离心喷雾干燥所制备的羟基磷灰石微球进行煅烧,并利用X射线衍射仪、扫描电子显微镜、傅里叶红外光谱仪、比表面积分析仪以及激光粒度分析仪等分析手段,研究了煅烧对羟基磷灰石微球的相组成、微观结构以及比表面积、孔体积和粒度等性能的影响。结果表明,经400℃煅烧,微球比表面积、孔体积及其粒度均明显增大;随煅烧温度升高,比表面积和孔体积均略有降低。Hydroxyapatite（HA） microspheres were fabricated by centrifugul atomizing spray-drying method. The effects of sintering on mierostructure and properties of the hydroxyapatite microspheres were studied. A set of specimens were prepared by sintering the HA mierospheres in a conventional furnace at temperatures ranged from 400 to 600℃. The phase components, microstructure, specific surface area, total pore volume and size distribution of the microspheres were characterized by X-ray diffraction（XRD） , scanning electron microscopy（SEM） , Fourier-transform infrared spectrometry （FTIR）, surface area analysis （SSA） and laser diffraction particle size analysis（LDPSA） , respectively. The result shows that the specific surface area, pore volume and particle size of the microspheres are significantly increased at 400℃ , and the specific surface area and pore volume of the microspheres decrease with the increasing of sintering temperature.

关 键 词：羟基磷灰石 微球 煅烧 显微结构 

分 类 号：TB34[一般工业技术—材料科学与工程]