PREPARATION OF ALPHA-TRICALCIUM AND BETA-TRICALCIUM PHOSPHATE CERAMICS, WITH AND WITHOUT MAGNESIUM ADDITION

被引:133
作者
FAMERY, R
RICHARD, N
BOCH, P
机构
[1] Laboratory of Ceramics and Inorganic Materials, Ecole Supérieure de Physique et de Chimie Industrielles de Paris, 75005 Paris, 10, rue Vauquelin
关键词
D O I
10.1016/0272-8842(94)90050-7
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Alpha- and beta-tricalcium phosphate (TCP) ceramics were prepared using various processing routes. The high-temperature limit of the stability domain of beta-TCP is increased by magnesium addition (up to 5 wt% of equivalent MgO). Impregnation of pre-sintered, porous skeletons of TCP with a Mg-containing solution is an easy way to prepare Mg-TCP. Mg-chloride and Mg-sulfate lead to anionic residues which can combine with TCP, whereas Mg-acetate and Mg-nitrate lead to materials free from anionic residues. Reaction-sintering of hydroxylapatite and dicalcium phosphate mixtures impregnated with a solution of either Mg-acetate or Mg-nitrate is, therefore, an interesting route for preparing Mg-TCP ceramics with a controlled alpha-to-beta ratio.
引用
收藏
页码:327 / 336
页数:10
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