Mechano-chemical synthesis and characterization of nanostructured β-TCP powder

被引:58
作者
Choi, Daiwon
Kumta, Prashant N. [1 ]
机构
[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA
[2] Carnegie Mellon Univ, Inst Complex Engineered Syst, Pittsburgh, PA 15213 USA
[3] Carnegie Mellon Univ, Dept Biomed Engn, Pittsburgh, PA 15213 USA
来源
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2007年 / 27卷 / 03期
基金
美国国家卫生研究院; 美国国家科学基金会;
关键词
hydroxyapatite; beta-TCP; mechano-chemical; biodegradable;
D O I
10.1016/j.msec.2006.05.035
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Tricalcium phosphates (Ca-3(PO4)(2): beta-TCP) are known for their biodegradable characteristics and are essential components of natural bone. Unlike hydroxyapatite (HAp), beta-TCP is not the stable phase at room temperature. It is normally obtained by solid-state synthesis at temperatures in excess of 600 degrees C where calcium deficient hydroxyapatite transforms to beta-TCP. Low temperature approaches for synthesizing this phase could offer unique opportunities with regards to controlling the microstructure and its degradable characteristics. In this study, the possibility of synthesizing beta-TCP directly by a mechano-chemical route has been investigated. The starting materials were mechanically milled for various time periods. The resultant calcium phosphate powder has been analyzed using XRD, FTIR, DTA/TGA and SEM. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码:377 / 381
页数:5
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