Wear performance of laser processed tantalum coatings

被引：32

作者：

Dittrick, Stanley ^{[1
]}

Balla, Vamsi Krishna ^{[1
]}

Bose, Susmita ^{[1
]}

Bandyopadhyay, Amit ^{[1
]}

机构：

[1] Washington State Univ, Sch Mech & Mat Engn, WM Keck Biomed Mat Res Lab, Pullman, WA 99164 USA

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2011年 / 31卷 / 08期

基金：

美国国家卫生研究院; 美国国家科学基金会;

关键词：

Laser deposition; Wear; Biomaterial; Tantalum; In vitro; LOAD-BEARING IMPLANTS; TITANIUM; METAL; BONE; FABRICATION; MICROSTRUCTURE; SOLIDIFICATION; ALLOY; LENS;

D O I：

10.1016/j.msec.2011.08.017

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

This first generation investigation evaluates the in vitro tribological performance of laser-processed Ta coatings on Ti for load-bearing implant applications. Linear reciprocating wear tests in simulated body fluid showed one order of magnitude less wear rate, of the order of 10(-4) mm(3)(N.m)(-1), for Ta coatings compared to Ti. Our results demonstrate that Ta coatings can potentially minimize the early-stage bone-implant interface micro-motion induced wear debris generation due to their excellent bioactivity comparable to that of hydroxyapatite (HA), high wear resistance and toughness compared to popular HA coatings. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1832 / 1835

页数：4

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