期刊
COMPOSITES PART B-ENGINEERING
卷 43, 期 3, 页码 1564-1569出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2011.08.015
关键词
Ceramic-matrix composites (CMCs); Hardness; Microstructure; Fractography; Electron microscopy
资金
- Higher Education Commission (HEC), Pakistan
In the present study effect of deflocculants like P-Aminobenzoic Acid (PABA) and Cetyltrimethyl ammonium bromide (CTAB) on densification and hardness of 3 mol.% Yttria-stabilized ZrO2 (abridged as YSZ) + Al2O3 (whiskers or particulates) composite have been studied. Maximum hardness 82 density were achieved at 1 wt% of CAB or PABA, while further addition (5, 10 and 15 wt%) had no significant affect on the aforementioned properties. It was also observed that alumina addition in form of particulates only improved the density while its addition in form of whiskers significantly increased the hardness of YSZ + alumina composite. The maximum hardness achieved was more than 14 GPa in case of sample containing alumina in form of whiskers. (C) 2011 Elsevier Ltd. All rights reserved.
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