Sintering effect on mechanical properties of composites of natural hydroxyapatites and titanium

被引：79

作者：

Salman, S. ^{[1
,2
,3
,5
]}

Gunduz, O. ^{[1
,2
]}

Yilmaz, S. ^{[4
]}

Ovecoglu, M. L.

Snyder, Robert L. ^{[3
,5
]}

Agathopoulos, S. ^{[6
]}

Oktar, F. N. ^{[2
,7
,8
]}

机构：

[1] Marmara Univ, Met Educ Dept, Sch Tech Educ, TR-34722 Istanbul, Turkey

[2] Nanotechnol & Biomat Res & Applicat Ctr, Istanbul, Turkey

[3] Georgia Inst Technol, Atlanta, GA 30332 USA

[4] Istanbul Univ, Dept Met & Mat Engn, Istanbul, Turkey

[5] Istanbul Tech Univ, Dept Met & Mat Engn, TR-34469 Istanbul, Turkey

[6] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece

[7] Marmara Univ, Dept Radiol, Sch Hlth Related Profess, TR-34722 Istanbul, Turkey

[8] Univ Aveiro, Dept Mech Engn TEMA, P-3800 Aveiro, Portugal

来源：

CERAMICS INTERNATIONAL | 2009年 / 35卷 / 07期

关键词：

Sintering; Microstructure; Mechanical properties; Hydroxyapatite; Titanium; REINFORCED HYDROXYAPATITE; TEMPERATURE; MICROSTRUCTURE;

D O I：

10.1016/j.ceramint.2009.04.004

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：

This study presents the fabrication and characterization of composite materials of hydroxyapatite and Ti. Hydroxyapatite (HA) powder was obtained from bovine bones (BHA) and human enamel (EHA) via calcination technique. Fine powders of HA were admixed with 5 and 10 wt.% fine powder of metallic Ti. Powder-compacts were sintered at different temperatures between 1000 and 1300 degrees C. Compression strength, Vickers microhardness and elastic modulus as well as density were measured. SEM and X-ray diffraction studies were also conducted. The experimental results showed that addition of Ti to EHA and BHA decreases the elastic modulus, comparing to samples of pure BHA. The best mechanical properties for BHA-Ti composites were obtained after sintering in the range of 1200-1300 degrees C and for EHA-Ti composites in the range of 1100-1300 degrees C. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：2965 / 2971

页数：7

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