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固相反应合成磷酸四钙的物相演变

郭大刚; 徐可为; 憨勇   

  1. 西安交通大学金属材料强度国家重点实验室, 西安 710049
  • 收稿日期:2004-03-26 修回日期:2004-06-25 出版日期:2005-03-20 网络出版日期:2005-03-20

Phase Transition of Synthesizing Tetracalcium Phosphate in a Solid-state Reaction

GUO Da-Gang; XU Ke-Wei; HAN Yong   

  1. State Key Laboratory for Mechanical Behavior of Materials; Xi an Jiaotong University; Xi an 710049; China
  • Received:2004-03-26 Revised:2004-06-25 Published:2005-03-20 Online:2005-03-20

摘要: 采用TGA-DSC、FTIR及XRD等方法研究了固相反应法合成磷酸四钙(TTCP) 的物相演变过程.结果表明,1200℃以上物相变化与CaO-P2O5-H2O)的高温相图基本一致, 1200℃以下的物相变化为绘制CaO-P2O5-H2O低温相图提供重要数据;通过揭示固相合成 TTCP物相演变的全过程,为制备出纯TTCP这一重要的磷酸钙骨水泥组成材料提供重要理 论依据.

关键词: 磷酸四钙(TTCP), 固相反应, 物相演变, 生物陶瓷

Abstract: The phase transition course of synthesizing tetracalcium phosphate in a solid-state reaction was investigated
by TGA-DSC, XRD and FTIR. The results show that the phase transformations occurring over 1200℃ are consistence with the high temperature phase
diagram of CaO-P2O5-H2O. In view of lack of the low temperature phase diagram, the phase transitions below 1200℃ can offer significant
data to draw it; understanding the whole course of phase evolution contributes to optimum the synthesizing process to get pure TTCP, the most important
biomaterial in the field of calcium phosphate cement.

Key words: tetracalcium phosphate, solid-state phase reaction, phase transitions, bioceramic

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