Pulsed laser deposition of hydroxyapatite thin films under Ar atmosphere

This study was aimed at the pulsed laser deposition of hydroxyapatite (HA) thin films onto Ti substrate using KrF excimer laser. The deposition was carried out under an atmosphere of Ar at 45 Pa. The films structures have been analyzed by EPMA, TEM, XRD and Raman spectroscopy. It can be observed tha...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2006-08, Vol.429 (1), p.25-29
Main Authors: Bao, Quanhe, Chen, Chuanzhong, Wang, Diangang, Lei, Tingquan, Liu, Junming
Format: Article
Language:English
Subjects:
Ar atmosphere
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Hydroxyapatite
Laser deposition
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Physics
Structure and morphology
thickness
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Thin film structure and morphology
Thin films
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Summary:This study was aimed at the pulsed laser deposition of hydroxyapatite (HA) thin films onto Ti substrate using KrF excimer laser. The deposition was carried out under an atmosphere of Ar at 45 Pa. The films structures have been analyzed by EPMA, TEM, XRD and Raman spectroscopy. It can be observed that the films are mainly composed of droplet-like particles which size of 0.2–2 μm. The results of XRD, TEM and Raman spectroscopy show that the films are amorphous. The ratio of Ca/P is 1.97, which is higher than that of HA. After heat treatment the XRD pattern show that the films were consist of HA and TiO 2. The ratio of Ca/P is 1.82, which is close to that of crystalline HA.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2006.04.003