Highly adhesive hydroxyapatite coatings on alumina substrates prepared by ion-beam assisted deposition

被引：34

作者：

Kim, TN

Feng, QL

Luo, ZS

Cui, FZ ^{[1
]}

Kim, JO

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

[2] Paichai Univ, Div Adv Mat Engn, Taejon 302735, South Korea

来源：

SURFACE & COATINGS TECHNOLOGY | 1998年 / 99卷 / 1-2期

关键词：

alumina; hydroxyapatite coating; ion-beam assisted deposition;

D O I：

10.1016/S0257-8972(97)00121-7

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ion-beam assisted deposition (IBAD) was carried out to deposit hydroxyapatite (HAp) on alumina substrate. The amorphous coating layer on alumina substrate is crystallized to the dense HAp after a post-treatment process of annealing at 500 degrees C for 2 h and immersion in deionized water for 72 h at room temperature. The homogeneous and dense HAp coating is observed by scanning electron microscopy and the thickness of the coating is measured to be about 638 nm. The hardness of the coating layer in the as-deposited and post-treated samples is 475 and 508, respectively. The adhesive strength between HAp and a-alumina substrate was measured by a scratch lest. The ion-beam sputtered coatings were used as control samples. The adhesion was found to be worse for ion-beam sputtering deposition (IBSD) than for IBAD. (C) 1998 Elsevier Science S.A.

引用

页码：20 / 23

页数：4

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Geesink R.G.T., 1993, HYDROXYAPATITE COATI