Differential sintering in ceramic injection moulding: particle orientation effects

被引：26
作者：
Krug, S
Evans, JRG
ter Maat, JHH
机构：
[1] Queen Mary Univ London, Dept Mat, London E1 4NS, England
[2] BASF AG, D-67056 Ludwigshafen, Germany
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2002年 / 22卷 / 02期
关键词：
Al2O3; anisotropy; injection moulding; shrinkage anisotropy; sintering; ZrO2;
D O I：
10.1016/S0955-2219(01)00259-X
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：
The sintering shrinkage in three orthogonal directions was measured in sections cut from large rectangular injection moulded ceramic blocks. Two powders were used: a comminuted alumina and a chemically-derived zirconia. Pronounced anisotropy of shrinkage was observed in the former whereas the equiaxed zirconia showed uniform shrinkage throughout the moulding. The pattern of shrinkage anisotropy was consistent,vith that observed by other investigators and indicates that slight particle anisotropy can introduce differential sintering. The sintering shrinkage in the alumina powder was found to be most pronounced perpendicular to the main flow direction. (C) 2001 Elsevier Science Ltd. All rights reserved.
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页码：173 / 181
页数：9
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