Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Machinable SiC Ceramics with Addition of Al2TiO5

Al2TiO5가 첨가된 쾌삭(快削) SiC 세라믹스

  • Kim, Il Soo (Department of Materials and Components Engineering, Dongeui University) ;
  • Park, Jeong Hyun (Department of Materials and Components Engineering, Dongeui University) ;
  • Lee, Won Jae (Department of Materials and Components Engineering, Dongeui University) ;
  • Lee, Kang Ho (Dandan Materials)
  • Received : 2013.09.26
  • Accepted : 2013.10.21
  • Published : 2013.11.30
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Abstract

Machinable SiC ceramics are prepared with the addition of $Al_2TiO_5$. Ready-to-press SiC and $Al_2TiO_5$ powders are mixed and pressureless sintered at $1750^{\circ}C$ and $1850^{\circ}C$ for 1 h. The weight ratios of the SiC and $Al_2TiO_5$ powders are 100 : 0, 100 : 10, and 100 : 20. After sintering, only SiC peaks are detected in the X-ray diffraction analyses. The density, strength, and grain size of the SiC increase with increases in the $Al_2TiO_5$ content and sintering temperature. The $Al_2TiO_5$-doped specimens are easy to micro-hole machine. Based on the density and strength data, the ceramics sintered at $1850^{\circ}C$ can be used as machinable ceramics.

Keywords

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