MICROSTRUCTURAL CHARACTERIZATION OF HYDROXYAPATITE COATING ON TITANIUM

被引：120
|
作者：
JI, HX
PONTON, CB
MARQUIS, PM
机构：
[1] Department of Metallurgy and Materials, University of Birmingham, Birmingham
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 1992年 / 3卷 / 04期
关键词：
D O I：
10.1007/BF00705294
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The microstructure of hydroxyapatite plasma sprayed onto titanium alloy has been studied by using transmission electron microscopy. It has been shown that while substantial portions of the coating are crystalline hydroxyapatite, regions of amorphous calcium phosphate with Ca/P ratios of 0.6-1.0 are also present, both in the coatings and at the metal-ceramic interface. The microstructures observed have also been found to be consistent with devitrification of the amorphous calcium phosphates producing regions of very fine grained hydroxyapatite. A calcium titanate phase has also been detected at the metal-ceramic interface produced by the chemical reaction of hydroxyapatite to titanium.
引用
收藏
页码：283 / 287
页数：5
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