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Effect of Post-Treatment on Dissolution and Biomineralization on Surface of ha Coatings in Simulated Body Fluid (SBF)

Published online by Cambridge University Press:  10 February 2011

Jiyong Chen ,
Jie Weng ,
Qiyi Zhang ,
Jiaming Feng ,
Yang Cao  and
Xingdong Zhang
Jiyong Chen
Affiliation:
Institute of Materials Science and Technology, Sichuan University, Chengdu 610064, P.R. China
Jie Weng
Affiliation:
Institute of Materials Science and Technology, Sichuan University, Chengdu 610064, P.R. China
Qiyi Zhang
Affiliation:
Institute of Materials Science and Technology, Sichuan University, Chengdu 610064, P.R. China
Jiaming Feng
Affiliation:
Institute of Materials Science and Technology, Sichuan University, Chengdu 610064, P.R. China
Yang Cao
Affiliation:
Institute of Materials Science and Technology, Sichuan University, Chengdu 610064, P.R. China
Xingdong Zhang
Affiliation:
Institute of Materials Science and Technology, Sichuan University, Chengdu 610064, P.R. China
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Abstract

The HA coatings were heated separately in vacuum, air and water vapor. The dissolution of the HA coatings was investigated by immersion in Tris buffer and SBF The dissolubility of HA coatings in the solutions decreased in this order: as-received, heated in vacuum, in air and in water vapor. The nucleation of bone-like apatite on the surfaces of HA coatings after immersing a period of 11 days in SBF was observed by SEM. The microenvironment with a sufficient supersaturation of Ca and P ions was crucial for the nucleation and growth of apatite in SBF. The dissolution of amorphous phase in coatings played an important part in establishing the supersaturation of Ca and P ions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 599: Symposium DD – Mineralization in Natural & Synthetic Biomaterials , 1999 , 55
Copyright
Copyright © Materials Research Society 2000

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