Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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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)
  • Received : 2010.08.14
  • Accepted : 2010.10.05
  • Published : 2011.01.31
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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 $1050^{\circ}C$.

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