Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Sintering Characterization of Hot-Pressed SiC Prepared by SHS Microwave Method

SHS Microwave 법으로 합성한 SiC 분말의 고온가압 소결특성

  • 김도경 (명지대학교 무기재료공학과) ;
  • 안주삼 (연세대학교 세라믹공학과) ;
  • 김익진 (한서대학교 재료공학과) ;
  • 이형복 (명지대학교 무기재료공학과)
  • Published : 1995.08.01
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Abstract

Ultra-fine $\beta$-SiC powders were fabricated by self-propagating high temperature synthesis process (SHS) using microwave oven. The flexural strength, fracture toughness, and hardness of hot pressed sample at 200$0^{\circ}C$ for 60 min using synthesized SiC powders, which had 2 wt% of Al2O3 and 2.5 wt% of B4C content, showed 438 MPa, 4.15MPa.m1/2 and 28 GPa, respectively. The highest strength, fracture toughness, and hardness of composites containing 4wt% of Al2O3, which had highest relative density of 99.9%, showed 458 MPa, 4.6MPa.m1/2 and 36.2 GPa, respectively.

Keywords

References

  1. J. Kor. Ceram. Soc. v.31 no.3 Studies on Synthesis and Sintering Characterization of Ti-Si System Ceramic by Self-Propagating High-Temperature Synthesis D.K. Kim;S. Park;D.K. Cho;K. Cho;H.B. Lee
  2. J. Kor. Ceram. Soc. v.31 no.11 Synthesis of SiC by Self-Propagating High-Temperature Synthesis Chemical furnace D.K. Kim;S. Park;D.K. Cho;K. Cho;H.B. Lee
  3. Principles of Electronic Ceramics L.L. Hench;J.K. West
  4. Ceram. Trans. v.21 Fundamental Interaction Mechanisms between Microwave and Matts R.E. Newnham;S.J. Jang;M. Xu;F. Jones
  5. Proc. of IMPI Short Course for Users of Microwave Power Interaction of Microwave with Materials W.R. Tinga
  6. Mat. Res. Soc. Symp. Proc. v.124 Fundamentals of Microwave-Material Interaction and Sintering W.R. Tinga
  7. Mat. Res. Soc. Symp. Proc. v.124 New Frontiers in the Use of Microwave Energy: Power and Metrology B.W. Bruce
  8. Technical Report 203 Supplimentary Dielectric Constants and Loss Measurements on High Temperature Materials J. Inglesias;W.B. Westphal
  9. Mat. Res. Soc. Symp. Proc. v.124 High-Temperature Dielectric Properties of Polycrystalline Ceramics W.W. Ho
  10. Doctoral Thesis Studies on Combustion Synthesis and High Pressure Sintering for Non-Oxide Ceramics O. Yamada
  11. U.S. Patent 4,117,096 Process for Producing Powder of Beta Type Silicon Carbide T. Hosaka;T. Sasaki;H. Suzuki
  12. 日本窯業協會誌 v.88 no.5 Initial-stage Sintering of β-SiC with Concurrent Boron and Carbon Additions T. Hase;H. Suzuki
  13. J. Am. Ceram. Soc. v.69 no.4 Hot-Pressing of β-SiC Powder with Al-B-C additive Bor-Wen Lin
  14. J. Mater. Sci. v.10 no.2 Hot-Pressing Behavior of Silicon Carbide Powders with Additives of Aliuminium Oxide F.F. Lange
  15. 日本窯業協會誌 v.77 no.9 On the Formation of the 15R-type in the β→α Transformation of SiC Y. Inomata;Z. Inoue;K. Kijima