Phase stability and microstructure development in hydroxyapatite-mullite system

被引：48

作者：

Nath, Shekhar ^{[1
]}

Biswas, Krishanu ^{[1
]}

Basu, Bikramjit ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Mat & Met Engn, Kanpur 208016, Uttar Pradesh, India

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 12期

关键词：

hydroxyapatite; composite; TEM; microstructure;

D O I：

10.1016/j.scriptamat.2008.01.045

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report here the results of a transmission electron microscopy (TEM) study of hydroxyapatite (HAp)-mullite composites. TEM analysis, in combination with selected-area diffraction pattern analysis, confirms the decomposition of HAp to tricalcium phosphate, irrespective of mullite content. Importantly, the presence of sintering liquid residue of tetragonal gehlenite as well as cubic CaO and rhombohedral Al2O3 has been observed in the investigated HAp composites. Based on the microstructural characterization, the possible sintering reactions are discussed. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1054 / 1057

页数：4

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