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Synthesis of Pure β-Ca3(PO4)2 Bioceramics with Gelatin by Precipitation Method
Author(s): 
Pages: 269-279
Year: Issue:  4
Journal: Imaging Science and Photochemistry

Keyword:  gelatinpure β-TCPCa-dHAPbone repairprecipitation;
Abstract: 本文以明胶、硝酸钙Ca(NO3)2和磷酸氢二铵(NH4)2HPO4为前驱体,初始Ca/P为1.5,制备了纯相的β-磷酸三钙.红外谱图和X射线晶体衍射结果表明,溶液中直接沉淀得到的产物为缺钙磷灰石,该产物在明胶浓度≥0.22%(质量分数)时热转化为纯相的β-磷酸三钙.通过晶体尺寸计算和比表面积测定,缺钙磷灰石的晶体大小随着明胶用量的增加而变小.透射电镜结果显示溶液中直接沉淀的缺钙磷灰石呈针状形貌,经...
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