Mechanochemical synthesis of hydroxyapatite from Ca(OH)2-P2O5 and CaO-Ca(OH)2-P2O5 mixtures
Mechanochemical synthesis of hydroxyapatite from Ca(OH)2-P2O5 and CaO-Ca(OH)2-P2O5 mixtures
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DOI：
10.1023/a:1004859231795
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发表时间：
2000-11-01
影响因子：
4.5
通讯作者：
Saito, F
中科院分区：
文献类型：
--
作者：
Kim, W;Zhang, QW;Saito, F
采用行星式球磨机对Ca(OH)(2)-P2O5和CaO-Ca(OH)(2)-P2O5混合物进行干磨，研究合成羟基磷灰石(Ca-10(PO4)(6)(OH)(2)，HAp)的机械化学固相反应。通过研磨两组混合物合成HAp。由Ca(OH)(2)-P2O5混合物形成HAp比由CaO-Ca(OH)(2)-P2O5混合物更有利。前混合物的合成反应几乎在研磨 30 分钟内完成。起始混合物中 H2O 的存在和含量对于促进 HAp 的形成起着关键作用。特别是，在前一种混合物中，长时间的研磨有助于中间体DCPD和Ca(OH)(2)的固相反应，更有效地产生HAp。 (C) 2000 Kluwer 学术出版社。
Dry grinding of Ca(OH)(2)-P2O5 and CaO-Ca(OH)(2)-P2O5 mixtures was conducted by a planetary ball mill to investigate the mechanochemical solid-phase reaction for the synthesis of hydroxyapatite (Ca-10(PO4)(6)(OH)(2), HAp). HAp was synthesized by grinding of the two sets of mixtures. The formation of HAp from the Ca(OH)(2)-P2O5 mixture was more advantageous than that from the CaO-Ca(OH)(2)-P2O5 one. This synthesis reaction from the former mixture was almost completed within 30 min of grinding. The presence and amount of H2O contained in the starting mixtures played a key role to promote the formation of HAp. Especially, in the former mixture, the prolonged grinding assisted the solid-phase reaction of the intermediate DCPD and Ca(OH)(2) to produce HAp more effectively. (C) 2000 Kluwer Academic Publishers.