| Microwave-assisted Sintering of Amorphous Powders |
| Hoi-Kwan Lee, Ki-Min Kim1, Man-Kyu Park1, Won-Ho Kang1 |
Materials Research Institute, The Pennsylvania State University
1Department of Advance Materials Science and Engineering, Dankook University |
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| ABSTRACT |
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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 $1050^{circ}C$. |
| Key words:
Sintering, Densification, Crystallization, Microwave heating, Aluminum borate |
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