Influence of Al2O3 whisker concentration on flexural strength of Al2O3(w)-ZrO2 (TZ-3Y) composite

被引：28
作者：
Abdullah, Muhammad [1 ]
Ahmad, Jamil [1 ]
Mehmood, Mazhar [1 ]
机构：
[1] Pakistan Inst Engn & Appl Sci, Dept Met & Mat Engn, Islamabad 45650, Pakistan
来源：
CERAMICS INTERNATIONAL | 2012年 / 38卷 / 08期
关键词：
Composites; Strength; Al2O3; ZrO2;
D O I：
10.1016/j.ceramint.2012.05.031
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：
On investigating the possibility of using alumina whisker reinforced 3 mol% Yttria stabilized Tetragonal Zirconia (TZ-3Y) composite for bioceramic applications, presented here is the influence of varying whisker concentration (2, 5, 10, 15 and 20 wt%) on flexural strength of the composite. Whiskers of hydrothermally synthesized Ammonium Aluminum Carbonate Hydroxide (AACH) were used for composite synthesis. These whiskers transformed in situ into alumina during sintering. It was found that with addition of alumina whiskers, strength was increased and reached a maximum value of 1212 +/- 60 MPa and 1325 +/- 65 MPa, in pure and 1 wt% CTAB added samples respectively, at a concentration of 10 wt% Al2O3 whiskers. The strength values of the synthesized composite can compete well with commercially available materials for dental applications. (c) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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收藏
页码：6517 / 6523
页数：7
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