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A comparative study of double layers Al2O3/Al2O3 and Al2O3/SiO2 prepared by microwave and natural drying

Ismail, N. F. and Harun, Zawati and Badarulzaman, Nur Azam (2012) A comparative study of double layers Al2O3/Al2O3 and Al2O3/SiO2 prepared by microwave and natural drying. International Journal of Integrated Engineering , 4 (1). pp. 16-21. ISSN 2229838X

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Abstract

In this work, a comparative study of green double layers ceramic bodies prepared by natural and microwave drying techniques was investigated. The double layers ceramic with combination of Al2O3/Al2O3 and Al2O3/SiO2 samples were prepared via compaction method. Alumina powder, Al2O3 with particle size 90μm and <45μm, silica powder, SiO2 with particle size <45μm were used in this study. Measurement of linear shrinkage of pellet shows that microwave drying contributed to lower shrinkage value compared to the natural drying method. The characterization of the microstructure of double layers ceramic body also showed that microwave technique formed a good bonding structure especially at the critical interface layer. In fact, the implementation of microwave drying also significantly reduced the drying time and produced a good and homogenous final structure.

Item Type: Article
Uncontrolled Keywords: ceramic pellet; microwave drying; microstructure; linear shrinkage
Subjects: T Technology > TP Chemical technology > TP785-869 Clay industries. Ceramics. Glass
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 24 Oct 2016 06:36
Last Modified: 24 Oct 2016 06:36
URI: http://eprints.uthm.edu.my/id/eprint/8255
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