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http://dx.doi.org/10.4191/kcers.2011.48.5.354

Fabrication of Silicon Nitride Ceramics by Gel-Casting and Microwave Gas Phase Reaction Sintering(II) : Microwave Nitridation of Silicon and Microwave Sintering of Silicon Nitride  

Bai, Kang (Energy Materials Research Center, Korea Institute of Energy Research)
Woo, Sang-Kuk (Energy Materials Research Center, Korea Institute of Energy Research)
Han, In-Sub (Energy Materials Research Center, Korea Institute of Energy Research)
Seo, Doo-Won (Energy Materials Research Center, Korea Institute of Energy Research)
Publication Information
Journal of the Korean Ceramic Society / v.48, no.5, 2011 , pp. 354-359 More about this Journal
Abstract
Silicon nitride ceramics were prepared by microwave gas phase reaction sintering. By this method higher density specimens were obtained for short time and at low temperature, compared than ones by conventional pressureless sintering, even though sintering behaviors showed same trend, the relative density of sintered body inverse-exponentially increases with sintering temperature and/or holding time. And grain size of ${\beta}$-phase of the microwave sintered body is bigger than one of the conventional pressureless sintered one. Also they showed good bending strengths and thermal shock resistances.
Keywords
Silicon nitride ceramics; Gas phase reaction; Microwave silicon nitridation; Microwave sintering; Phase transformation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 0
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