摘要
本文讨论了不同原始Ｃａ／Ｐ摩尔比下用溶胶－凝胶法及水热法合成的羟基磷灰石的特性。用Ｘ射线衍射、红外光谱、热分析和比表面积测定结果表明：提高Ｃａ／Ｐ比有利于结构碳酸根进入磷灰石晶体结构类质同象取代磷酸根，使溶－凝法合成的羟基磷灰石结构畸变加大，结晶度下降，等效粒径减小，比表面积增大，并引起晶胞参数ａ值的规律性下降。
The characteristics of hydroxyl apatite synthesised on different conditions by sol gel and hydrothermal methods are discussed.The XRD,IR,DTA,TG and specific surface area measurement show that,as Ca/P ratio in solution increases,the CO 2- 3 enter easily into the apatite to substitute PO 3- 4,resulting in high specific surface area,high deformation,low crystallinity,small crystallite and decrease of lattice parameter.
出处
《材料科学与工程》
CSCD
1997年第1期63-65,共3页
Materials Science and Engineering
