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Advances in Materials Science and Engineering
Volume 2012 (2012), Article ID 920105, 6 pages
Research Article

Preparation of Nanosized 𝜶 - A l 2 O 3 Particles Using a Microwave Pretreatment at Mild Temperature

1Department of Chemistry, College of Sciences, Yeungnam University, Gyeongbuk, Gyeongsan 712-749, Republic of Korea
2School of Chemical Engineering, Yeungnam University, Gyeongbuk, Gyeongsan 712-749, Republic of Korea
3Division of Chemical Engineering, College of Engineering, Kongju National University, Cheonan 330-717, Republic of Korea

Received 29 May 2012; Revised 10 July 2012; Accepted 17 July 2012

Academic Editor: Sinnanadar Ramasamy

Copyright © 2012 Hyun Soo Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study investigated the effect of microwave pretreatment to reduce the growth temperature of α-Al2O3. The microwave pre-treating of the synthesized powders at 1,000C produced rhombohedral structured α-Al2O3 with high specific surface area and dispersion; however the structure accumulated among the particles was seen above 1,200C when the microwave did not pretreated.