Surface morphology modifications of titanium based implant induced by 40 picosecond laser pulses at 266 nm

被引：34
|
作者：
Milovanovic, Dubravka S. [1 ,2 ]
Radak, Bojan B. [1 ,2 ]
Gakovic, Biljana M. [1 ,2 ]
Batani, Dimitri [3 ]
Momcilovic, Milos D. [1 ,2 ]
Trtica, Milan S. [1 ,2 ]
机构：
[1] VINCA Inst Nucl Sci, Dept Phys Chem, Belgrade 11001, Serbia
[2] VINCA Inst Nucl Sci, Dept Atom Phys, Belgrade 11001, Serbia
[3] Univ Milano Bicocca, Dipartimento Fis G Occhialini, I-20126 Milan, Italy
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 501卷 / 01期
关键词：
Metals and alloys; Laser processing; SEM; Microstructure; ND-YAG LASER; BIOMEDICAL APPLICATIONS; ABLATION; ALLOYS; TI6AL4V; UV; TI; METAL; FILM;
D O I：
10.1016/j.jallcom.2010.04.047
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface modification of titanium based implant Ti6Al4V induced by an Nd:YAG laser operating at a wavelength of 266 nm, with pulses of 40 ps, is presented. It is shown that the laser beam at fluences 0.96J cm(-2) and 0.29J cm(-2) significantly modifies the alloy surface. The damage threshold is estimated at 0.12 J cm(-2). The irradiations at 0.96J cm-2 were accompanied by the occurrence of plasma. The characteristics of the damage are: (a) smoothed center of the damage area, (b) 20 nm cracks, (c) 200 nm parallel periodic surface structures (PSS). The periodicity of the PSS corresponds to the laser wavelength. Such modifications of the Ti6Al4V implant surface are applicable to medical practice. Surface morphology of the implant was monitored by optical microscopy (OM) and scanning electron microscopy (SEM) coupled to an energy dispersive spectroscopy (EDS) analyzer. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：89 / 92
页数：4
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