Non-destructive evaluation of crystallinity and chemical composition by Raman spectroscopy in hydroxyapatite-coated implants

被引：30

作者：

Darimont, GL

Gilbert, B

Cloots, R

机构：

[1] Univ Liege, Inst Chem, SUPRATECS, Dept Chem, B-4000 Liege, Belgium

[2] Univ Liege, CHU Sart Tilman, Inst Dent, Dept Oral Implantol & Periodontol, B-4000 Liege, Belgium

[3] Univ Liege, Inst Chem, Dept Chem, B-4000 Liege, Belgium

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 1-2期

关键词：

chemical composition; Raman spectroscopy; hydroxyapatite-coated implants;

D O I：

10.1016/S0167-577X(03)00417-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

MicroRaman measurements have been performed on a commercially available plasma, sprayed hydroxyapatite-coated titanium implant. A double-band structure in the v(1) vibration mode was clearly identified and attributed to the presence of beta-tricalcium phosphate at the metal substrate-hydroxyapatite interface. beta-tricalcium phosphate probably results from the specific crystallization mode of the molten hydroxyapatite particles due to rapid cooling during the plasma spray process. The presence of beta-tricalcium phosphate can explain the dissolution of the hydroxyapatite coating when exposed to the body fluid for a long period of time due to the high solubility of beta-tricalcium phosphate in acidic medium. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：71 / 73

页数：3

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[2]

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[3]

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