Study on crystallization kinetics of plasma sprayed hydroxyapatite coating

被引：24

作者：

Chang, CK ^{[1
]}

Huang, JQ ^{[1
]}

Xia, JY ^{[1
]}

Ding, CX ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

CERAMICS INTERNATIONAL | 1999年 / 25卷 / 05期

关键词：

D O I：

10.1016/S0272-8842(98)00063-7

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：

Hydroxyapatite (HAp) coatings were deposited using vacuum plasma spraying system. Peak intensities of lattice plane (211), (112), (300) in XRD patterns were employed to investigate crystallinities of as-received coatings. Heat treatments at temperatures 600, 650, 700 and 800 degrees C were proceeded to reveal crystallization kinetics of vacuum plasma sprayed hydroxyapatite coating. Computer software was used to deal with the data processing. The results obtained showed that, after vacuum plasma spraying, crystallinity of hydroxyapatite coating decreases greatly, implying that the as-received coating mainly consists of an amorphous phase. Heat treatment is effective for the amorphous phase to convert into crystalline in vacuum plasma sprayed hydroxyapatite coating depending on heat treatment time and temperature. The conversion of hydroxyapatite from amorphous to crystalline is a second order reaction, and the activation energy is calculated to be 11.31x10(4)kJ/mol. (C) 1999 Published by Elsevier Science Limited and Techna s.r.l. All rights reserved.

引用

页码：479 / 483

页数：5

共 18 条

[1] MECHANICAL-PROPERTIES OF SINTERED HYDROXYAPATITE FOR PROSTHETIC APPLICATIONS [J].

AKAO, M ;

AOKI, H ;

KATO, K .

JOURNAL OF MATERIALS SCIENCE, 1981, 16 (03) :809-812

[2] Water vapour-treated hydroxyapatite coatings after plasma spraying and their characteristics [J].

Cao, Y ;

Weng, J ;

Chen, JY ;

Feng, JM ;

Yang, ZJ ;

Zhang, XD .

BIOMATERIALS, 1996, 17 (04) :419-424

[3]

GROSS KA, 1991, KEY ENG MAT, V53-5, P124, DOI 10.4028/www.scientific.net/KEM.53-55.124

[4] A HISTOLOGICAL-EVALUATION OF THE EFFECT OF HYDROXYAPATITE COATING ON INTERFACIAL RESPONSE [J].

JANSEN, JA ;

VANDERWAERDEN, JPCM ;

WOLKE, JGC .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 1993, 4 (05) :466-470

[5]

LI J, 1990, INTERCERAM, V39, P13

[6] Bioactive Ca-10(PO4)(6)(OH)2-TiO2 composite coating prepared by sol-gel process [J].

Li, P ;

deGroot, K ;

Kokubo, T .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 1996, 7 (1-2) :27-34

[7] Evaluation of implant materials (hydroxyapatite, glass-ceramics, titanium) in rat bone marrow stromal cell culture [J].

Ozawa, S ;

Kasugai, S .

BIOMATERIALS, 1996, 17 (01) :23-29

[8]

PASSI V, 1991, CERAMICS SUBSTITUTIV, P467

[9]

SCHIRKHANZADEH M, 1991, J MATER SCI LETT, V10, P1415

[10]

SCHIRKHANZADEH M, 1992, MATER LETT, V14, P27

← 1 2 →