Influence of thermal treatment on the roughness, corrosion resistance and wettability of hydroxyapatite films deposited by RF magnetron sputtering

被引：7

作者：

Dinu, M. ^{[1
]}

Kiss, A. E. ^{[1
]}

Parau, A. C. ^{[1
]}

Braic, V. ^{[1
]}

Vitelaru, C. ^{[1
]}

Braic, M. ^{[1
]}

Pana, I. ^{[1
]}

Balaceanu, M. ^{[1
]}

Vladescu, A. ^{[1
]}

机构：

[1] Natl Inst Optoelect INOE2000, Magurele 077125, Romania

来源：

BIOCERAMICS, VOL 25 | 2014年 / 587卷

关键词：

hydroxyapatite coatings; magnetron sputtering; roughness; corrosion resistance; contact angle; COATINGS; BEHAVIOR;

D O I：

10.4028/www.scientific.net/KEM.587.297

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper we report on the preparation and characterization of hydroxyapatite coatings deposited on Ti6Al4V alloy by magnetron sputtering deposition method. The amorphous deposited coatings were thermal annealed in a flux of dry nitrogen and water vapours at 800 degrees C for 30 and 120 minutes, in order to investigate the effect of this treatment on surface roughness, corrosion resistance and wettability. The films were characterized by surface profilometry, electrochemical tests and contact angle measurements. After annealing, the hydroxyapatite coatings became crystalline, exhibiting rougher surfaces, higher corrosion resistance and lower contact angles. We have demonstrated that the hydroxyapatite coating annealed at 800 degrees C for 30 minutes represents a good candidate to be used for medical implants, due to its superior corrosion behaviour and good wettability.

引用

页码：297 / 302

页数：6

共 21 条

[1] Strain rate sensitivity of hydroxyapatite coatings [J].