In situ evaluation of dimensional variations during water extraction from alumina injection-moulded parts

被引：27

作者：

Yang, WW ^{[1
]}

Hon, MH ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2000年 / 20卷 / 07期

关键词：

Al2O3; debinding; dimensional change; injection moulding;

D O I：

10.1016/S0955-2219(99)00221-6

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 dimensional variations of alumina injection-moulded compacts containing polyethylene glycol (PEG) binders during solvent debinding were studied. A dilatometer was set up for monitoring the length changes of compacts in situ. The results indicate that the parts expanded dramatically as soon as they came into contact with preheated water. After the initial sharp expansion, moulded compacts swelled slowly and reached the maximum expansion. The dimensions of specimen then maintained at a fixed value and the parts finally shrank drastically when water was drained out. Based on the results obtained, the causes of length changes for specimens immersed in water are discussed. In addition, the effects of debinding temperature and molecular weight of PEG on the length changes of specimens were also examined. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：851 / 858

页数：8

共 5 条

[1] A model for PEG removal from alumina injection moulded parts by solvent debinding
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[4] Evaluation of lignin/LCC modifications during hot- water extraction based on milled wood lignin isolation from sugar maple
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[5] Experimental evaluation of in situ CO2-water-rock reactions during CO2 injection in basaltic rocks:: Implications for geological CO2 sequestration
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[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2007, 8

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