王泽,肖桂勇,许文花,朱瑞富,吕宇鹏

• 1:山东大学材料液固结构演变与加工教育部重点实验室
• 2:山东大学材料科学与工程学院
• 3:山东大学苏州研究院

摘要(Abstract)：

利用湿化学合成法制备Fe~(3+)掺杂磷酸钙,并分析反应物中Fe~(3+)和Ca2+的比例对所得磷酸钙结晶度的影响。利用X射线衍射仪、扫描电子显微镜、磁强计等研究热处理对Fe~(3+)掺杂磷酸钙结构和性能的影响。结果表明,反应过程中Fe~(3+)的参与可提高磷酸钙的非晶稳定性,且随Fe~(3+)量的增加,所得磷酸钙结晶度降低。经900℃热处理2 h后,非晶磷酸钙可转变为磷酸钙、磷酸钙铁相和羟基磷灰石。随着Fe~(3+)掺入量的增加,热处理后形成的磷酸钙、磷酸钙铁相相对含量增加,而羟基磷灰石相对含量降低。热处理促进非晶磷灰石颗粒结晶长大形成球形颗粒或者短棒状结构。磁性检测结果表明Fe~(3+)取代磷酸钙具有顺磁性,经热处理后磁性显著增强。

关键词(KeyWords)： Fe3+掺杂磷酸钙;结晶度;热处理;微观结构;磁性

Abstract:

Keywords:

基金项目(Foundation): 山东省优秀中青年科学家奖励基金(BS2013CL030);; 江苏省科学基金青年基金(BK20140412)

作者(Author): 王泽,肖桂勇,许文花,朱瑞富,吕宇鹏

DOI: 10.13289/j.issn.1009-6264.2015.s2.001

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