Physics of hydroxyapatite plasma coatings on TiNi shape memory materials

被引：19

作者：

Filip, P

Kneissl, AC

Mazanec, K

机构：

[1] TECH UNIV OSTRAVA,INST MAT ENGN,CZ-70833 OSTRAVA,CZECH REPUBLIC

[2] UNIV MIN & MET LEOBEN,INST PHYS MET & MAT TESTING,A-8700 LEOBEN,AUSTRIA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 234卷

关键词：

ceramic coating; shape memory alloy; adhesion strength;

D O I：

10.1016/S0921-5093(97)00265-7

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

The microstructure of hydroxyapatite (HAP) ceramics coatings on TiNi shape memory alloy substrates was investigated. From the point of view of adherence, these coatings posses higher strength than approx. 30 MPa. The three levels of power input parameters were applied during the spraying process (55, 50 and 45 V). At lower voltage, the prepared HAP coatings contained pure Ca-10(PO4)(6)(OH)(2) with a Ca/P ratio of 1.65. At the highest voltage (55 V), the transition phase Ca-10(PO4)(6)(OH)(0.5)O-0.75 was detected. The observed good metal/ceramic interface strength is given by the formation of chemical bonding and by the energy dissipation due to stress induced martensite formation (SIM) and/or martensite reorientation (RE) during stressing the investigated composite. (C) 1997 Elsevier Science S.A.

引用

页码：422 / 425

页数：4