CRYSTALLITE ORIENTATION AND ANISOTROPIC STRAINS IN THERMALLY SPRAYED HYDROXYAPATITE COATINGS

被引：48

作者：

ROOME, CM ^{[1
]}

ADAM, CD ^{[1
]}

机构：

[1] STAFFORDSHIRE UNIV,SCH SCI,DIV PHYS,STOKE ON TRENT ST4 2DE,STAFFS,ENGLAND

来源：

BIOMATERIALS | 1995年 / 16卷 / 09期

关键词：

HYDROXYAPATITE; X-RAY DIFFRACTION; PROFILE FITTING; THERMAL DEPOSITION;

D O I：

10.1016/0142-9612(95)99696-J

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Thermally sprayed hydroxyapatite powders and coatings have been studied using X-ray powder diffraction and scanning electron microscopy. Preferred orientation of the crystallites has been found on a number of coated plates using X-ray powder diffraction, and full profile fitting of the patterns from the extracted powders indicates anisotropically thermally strained crystallites. This is a result of rapid crystal regrowth and associated thermal gradients on deposition. Electron micrographs of some coatings show a consistent picture of columnar crystallites orientated perpendicular to the substrate surface.

引用

页码：691 / 696

页数：6

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