Application of dissolution experiments to characterise the structure of pulsed laser-deposited calcium phosphate coatings

被引：18

作者：

Clèries, L ^{[1
]}

Fernández-Pradas, JM ^{[1
]}

Sardin, G ^{[1
]}

Morenza, JL ^{[1
]}

机构：

[1] Univ Barcelona, Dept Fis Aplicada & Opt, E-08028 Barcelona, Spain

来源：

BIOMATERIALS | 1999年 / 20卷 / 15期

关键词：

pulsed laser deposition; coatings; calcium phosphate; hydroxyapatite; dissolution;

D O I：

10.1016/S0142-9612(99)00045-9

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A dissolution test was performed with pulsed laser (Nd:YAG, 355 nm)-deposited calcium phosphate coatings composed of hydroxyapatite (HA) and alpha-tricalcium phosphate (alpha-TCP) in different proportions, as a result of the use of different deposition rates. During immersion in a Ca2+-free Hank's solution, the dissolution kinetics were determined while other structural and compositional properties of the coatings were derived. It was possible to infer that the alpha-TCP is distributed uniformly and that the coating is of a non-columnar compact grain structure. The mass ratio of the phases for each coating was also determined and was related to the X-ray diffraction intensities. When incomplete, the hydroxylation level of the HA in the coatings is completed after immersion. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1401 / 1405

页数：5

共 12 条

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