Innovative fabrication of porous titanium coating on titanium by cold spraying and vacuum sintering

被引：56
|
作者：
Sun, Jifeng [1 ]
Han, Yong [1 ]
Cui, Kai [1 ]
机构：
[1] Xian Jiaotong Univ, State Key Lab Mech Behavior Mat, Xian 710049, Peoples R China
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 21-22期
关键词：
porous titanium coating; cold spray; bond strength; structure; mechanical properties;
D O I：
10.1016/j.matlet.2008.04.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A porous titanium coating on titanium is fabricated by cold spraying "Mg+Ti" powders followed by vacuum sintering. The porous coating is interconnected, possesses the porosity of 48.6% with pore sizes in the range of 70-150 mu m, and firmly bonds to titanium substrate with a bond strength higher than 42 MPa. The bending Young's modulus and bending strength of the porous coating are 14.47 +/- 1.21 GPa and 106.93 +/- 10.79 MPa, respectively. The compressive Young's modulus and compressive yield strength of the porous coating are 3.99 +/- 0.12 GPa and 178.66 +/- 13.20 MPai, respectively. The porous titanium coating has sufficient strength and matched Young's modulus with nature natural bone for clinical use under load bearing conditions. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：3623 / 3625
页数：3
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