한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제24권2호
  • /
  • Pages.139-146
  • /
  • 1987
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  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

제천규석으로부터 제조한 $\beta$-SiC분말 및 소결체의 특성

Properties of Powders and Sintered Bodies of $\beta$-SiC Prepared from Jecheon Quartzite

  • 이홍림 (연세대학교 공과대학 요업공학과) ;
  • 신석호 (연세대학교 공과대학 요업공학과) ;
  • 배철훈 (연세대학교 공과대학 요업공학과) ;
  • 김무경 (국립공업시험원)
  • 발행 : 1987.02.01
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초록

${\beta}$-SiC powders were prepared by the simultaneous reduction and carbiding of Jecheon quartzite at 1400$^{\circ}C$ for 7 hours in hydrogen atmosphere, using graphite or carbon black as the reducing and carbiding reagent. The prepared SiC powder was acid-treated with the mixture of fluoric acid and hydrochloric acid at room temperature and also by heating on an alcohol lamp for one hour, respectively. The impurities were mostly eliminated and the purity of SiC became 98.5% after hot acid treatment. The specific surface area of SiC powder was also increased up to 115㎡/g by hot acid treatment. This pure and fine SiC powder was hot-pressed at 1900$^{\circ}C$ for 30min, using 5wt% Al2O3 as a sintering aid. The density, M.O.R., KIC and hardness of the hot-pressed SiC ceramics were 3.195g/㎤, 48.7Kgf/$\textrm{mm}^2$, 5.4MN/㎥/2 and 2,182Kgf/$\textrm{mm}^2$, respectively.

키워드

참고문헌

  1. 엔지니어링 세라믹스 이홍림(역)
  2. Am. Ceram. Soc. Bull v.58 no.8 Formation of Silicon Carbide from Silica Residues and Carbon B.W. Jong
  3. 요업학회지 v.15 no.4 산화물의 Carbothermal Reduction에 의한 고급 요업재료의 합성 이준근
  4. Yogyo-Kyokai-Shi v.94 no.1 Carbide Formation from a Montmorillonite-Polyacrylonitrille Intercalation Compound by Carbothermal Reduction Y. Sugahara(et al.)
  5. J. Am. Ceram. Soc. v.62 no.3-4 The Reduction of Silica with Carbon and Silicon Carbide P.D. Miller;J.G. Lee;I.B. Cutler
  6. Yogyo-Kyokai-Shi v.94 no.5 High Pressure Self-Combustion Sintering of SiC from Fine Mixed Powders of Silicon and Carbon O. Yamada(et al.)
  7. セラミツクス v.17 no.10 燒結原料 こしての炭化ケイ 素微粉末 가本 亮
  8. Yogyo-Kyokai-Shi v.87 no.11 Sinterability of Submicron SiC Prepared from Siliconization of Carbon Black Under Presence of Al Additives T. Hase(et al.)
  9. J. Mat. Sci v.10 Hop-pressing behaviour of silicon carbide powders with additions of aluminum oxide F.F. Lange
  10. Am. Ceram. Soc. Bull v.64 no.10 Effects of Sintering Temperatures on the Physical and Crystallographic Properties of β-SiC R.W. Williams
  11. J. Am. Ceram. Soc. v.68 no.9 Sintering and Microstructure Formation of β-Silicon Carbide D.H. Stutz;S. Prochazka
  12. Yogyo-Kyokai-Shi v.86 no.12 Sinterability of Submicron β-SiC Prepared from Siliconization of Carbon Black T. Hase(et al.)
  13. 이화학사전 이정근
  14. J. Am. Ceram. Soc. v.59 no.7-8 Fracture Toughness Determinations by Indentation A.G. Evans(et al.)
  15. 요업학회지 v.72 no.1 Syntheses of SiC and SiC-Si₃N₄Powder from Jecheon Quartz Hong-Lim Lee(et al.)
  16. Yogyo-Kyokai-Shi v.86 no.11 Properties of Submicron β-SiC Prepared from Siliconization of Carbon Black T. Hase(et al.)
  17. J. Am. Ceram. Soc. v.58 no.1-2 Effect of Boron and Carbon on Sintering of SiC S. Prochazka(et al.)
  18. High-Performance Ceramics J.G. Lee;I.B. Cutler
  19. 요업학회지 v.21 no.1 완도납석으로 부터 β-Sialon의 합성 이홍림;신현곤
  20. 요업학회지 v.23 no.3 공침법으로 제조한 Ai₂O₃-ZrO₂계 세라믹스의 기계적 성질 이홍림;홍기곤;정형진