Purification and particle size control of b-SiC powder using thermocycling process

E. J. Jung, Y. J. Lee, S. R. Kim, W. T. Kwon, Doo Jin Choi, Y. Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Recently, SiC single crystal growth has been of interest for the development of an alternative semiconducting material. The aim of this study was to purify and grow b-SiC particles for use as a single crystal source. First, a β-SiC powder with a particle size of about 10 mm and a purity of 99?5% was prepared from a phenyl-containing silica sol. Then, three different of heat treatment process were applied to grow the β-SiC particles and evaluate the effects of heat-treatment time and temperature. After three thermocycling processes carried out from 1850 to 2000°C in 1 h, the b-SiC particles had diameters over 100 mm because of a vaporisation-recrystallisation process that accelerated the b-SiC particle growth. Moreover, the thermocycling process improved the purity of b-SiC by eliminating metallic impurities.

Original languageEnglish
Pages (from-to)352-357
Number of pages6
JournalAdvances in Applied Ceramics
Volume113
Issue number6
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Thermal cycling
Powders
Purification
Particle size
Heat treatment
Single crystals
Polymethyl Methacrylate
Sols
Crystallization
Vaporization
Crystal growth
Silicon Dioxide
Silica
Impurities
Temperature

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Industrial and Manufacturing Engineering

Cite this

Jung, E. J. ; Lee, Y. J. ; Kim, S. R. ; Kwon, W. T. ; Choi, Doo Jin ; Kim, Y. / Purification and particle size control of b-SiC powder using thermocycling process. In: Advances in Applied Ceramics. 2014 ; Vol. 113, No. 6. pp. 352-357.
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Purification and particle size control of b-SiC powder using thermocycling process. / Jung, E. J.; Lee, Y. J.; Kim, S. R.; Kwon, W. T.; Choi, Doo Jin; Kim, Y.

In: Advances in Applied Ceramics, Vol. 113, No. 6, 01.01.2014, p. 352-357.

Research output: Contribution to journalArticle

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