PERIODIC CRYSTALLIZATION EFFECT IN THE SURFACE-LAYERS OF COATINGS DURING PLASMA SPRAYING OF HYDROXYAPATITE

被引：34

作者：

ZYMAN, Z

CAO, Y

ZHANG, X

机构：

[1] SICHUAN UNIV,INST MAT SCI & TECHNOL,CHENGDU 610064,PEOPLES R CHINA

[2] KHARKOV AM GORKII STATE UNIV,FAC PHYS,DEPT GEN PHYS,KHARKOV 310077,UKRAINE

来源：

BIOMATERIALS | 1993年 / 14卷 / 15期

关键词：

HYDROXYAPATITE COATING; PLASMA SPRAYING; AMORPHOUS PHASE;

D O I：

10.1016/0142-9612(93)90158-X

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A new effect of the amorphous component of periodic crystallization in the surface layers of coatings during hydroxyapatite (HA) plasma spraying is revealed. The effect is caused by significant temperature increases of surface layers due to plasma heating in the process of coating. Under prevalent spraying conditions, the crystallite sizes of the crystallite phase are considerably less than those in dense HA. These non-equilibrium phases crystallize consistently and, as a result, in the surface layers HA crystallites emerge and grow. This leads to oscillating type dependences of crystallite size and crystallinity on coating thickness

引用

页码：1140 / 1144

页数：5

共 16 条

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[Anonymous], [No title captured]

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