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http://dx.doi.org/10.4191/KCERS.2011.48.1.014

Microwave-assisted Sintering of Amorphous Powders  

Lee, Hoi-Kwan (Materials Research Institute, The Pennsylvania State University)
Kim, Ki-Min (Department of Advance Materials Science and Engineering, Dankook University)
Park, Man-Kyu (Department of Advance Materials Science and Engineering, Dankook University)
Kang, Won-Ho (Department of Advance Materials Science and Engineering, Dankook University)
Publication Information
Journal of the Korean Ceramic Society / v.48, no.1, 2011 , pp. 14-19 More about this Journal
Abstract
Microwave heating (MW) was studied for the sintering of amorphous powders. In comparison to conventional heating (CV), the results show that microwave heating has the potential to substantially accelerate the sintering process and allow for highly densified solidification by eliminating the pores and increasing the shrinkage rate. In the heat treatment to synthesize aluminum borate ($Al_{18}B_4O_{33}$) whiskers from precursors, it was found that microwave heating helps the formation of $Al_{18}B_4O_{33}$ crystal as well as the decrease of crystallization temperature of $Al_{18}B_4O_{33}$ to a level significantly lower than the previously reported value of $1050^{\circ}C$.
Keywords
Sintering; Densification; Crystallization; Microwave heating; Aluminum borate;
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