Deposition of hydroxyapatite thin films by Nd:YAG laser ablation:: a microstructural study

被引：18
|
作者：
Nistor, LC
Ghica, C
Teodorescu, VS
Nistor, SV
Dinescu, M
Matei, D
Frangis, N
Vouroutzis, N
Liutas, C
机构：
[1] Natl Inst Mat Phys, RO-76900 Bucharest, Romania
[2] Natl Inst Lasers Plasma & Radiat Phys, RO-76900 Bucharest, Romania
[3] Aristotle Univ Thessaloniki, Dept Phys, GR-54124 Thessaloniki, Greece
来源：
MATERIALS RESEARCH BULLETIN | 2004年 / 39卷 / 13期
关键词：
inorganic material; laser deposition; electron microscopy; crystal structure;
D O I：
10.1016/j.materresbull.2004.07.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hydroxyapatite (HA) thin films has been successfully deposited by Nd:YAG laser ablation lambda = 532 nm. The morphology and microstructure of the deposited layers was studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high resolution electron microscopy (HREM). Polycrystalline HA films were directly obtained with the substrate at 300 degreesC and without introducing water vapors in the deposition chamber. Electron paramagnetic resonance (EPR) measurements show that the oxygen stoichiometry in the HA films is also maintained. Depositions performed at lambda = 335 nm laser wavelength and 300 degreesC substrate temperature resulted in polycrystalline layers of mixed composition of HA and tricalciumphosphate (TCP). (C) 2004 Elsevier Ltd. All rights reserved.
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收藏
页码：2089 / 2101
页数：13
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