Effect of SiC Dispersion of $\beta$-Sialon Prepared from Wando Pyrophylite

완도납석으로부터 제조한 $\beta$-Sialon에 대한 SiC의 복합화 효과

  • Lee, Hong-Lim (Dept. of Ceram. Eng., Yonsei Univ) ;
  • Kim, Shin (Dept. of Ceram. Eng., Yonsei Univ) ;
  • Lee, Hyung-Jik (Advanced Eng. & Research Lab., Hyundai Motor Co)
  • 이홍림 (연세대학교 요업공학과) ;
  • 김신 (연세대학교 요업공학과) ;
  • 이형직 (현대자동차주식회사 연구소)
  • Published : 1988.03.01


$\beta$-Sialon powder was prepared by the reduction-nitridation reaction from the mixture of Wando Pyrophyllite and carbon black at 135$0^{\circ}C$ in $N_2$ atmosphere. $\beta$-SiC powder was added to the prepared $\beta$-Sialon powder to make $\beta$-Sialon-SiC composite. The $\beta$-Sialon-SiC composites were sintered pressurelessly at 175$0^{\circ}C$ for 2h, using $Y_2O_3$ and $ZrO_2$(monoclinic) as sintering aids. Comparatively higher values of the fracture toughness (3.8 MN/㎥/2), M.O.R. (470 MN/$m^2$) and vickers microhardness (13.7 MN/$m^2$) were obtained when 10 wt% $Y_2O_3$ was added as a sintering aid. The improved fracture toughness and M.O.R. are assumed to be the results of crack deflection and crack branching by the second phase SiC particles.



  1. 요업학회지 v.23 no.4 완도납석으로부터 제조된 β-Sialon의 기계적 성질 이홍림;장병국
  2. 요업학회지 v.24 no.4 카올린으로부터 합성한 β-Sialon의 열적·기계적 성질 이홍림;임헌진;김신;이형복
  3. J. Am. Ceram. Soc. v.61 no.1-2 Mechanical Properties of Sintered and Hot-Pressed Si₃N₄-ZrO₂ Composites N. Claussen;J. Jahn
  4. J. Am. Ceram. Soc. v.58 no.7-8 Contribution to the Phase Diagram Si₃N₄-AlN-Al₂O₃-SiO₂ L.J. Gauckler;H.L. Lukas;G. Petzow
  5. Yogyo-Kyokai-Shi v.88 no.8 The Strength of Reaction Sintered β-Sialon M. Mitomo;N. Kuramoto;Y. Inomata;M. Tsutsumi
  6. Yogyo-Kyokai-Shi v.94 no.8 Microstructure and Mechanical Properties of Al₂O₃-SiC Composites A. Nakahira;K. Nihara;T. Hirai
  7. J. Am. Ceram. Soc. v.67 no.8 Improvements in Mechanical Properties in SiC by the Addition of TiC Particles G.C. Wei;P.F. Becher
  8. Am. Ceram. Soc. Bull. v.60 no.11 Fracture Toughness and Strength of Si₃N₄-TiC Composites T. Mah;M.G. Mendiratta;H.A. Lipsitt
  9. Yogyo-Kyokai-Shi v.93 no.4 The Effects of Additives on Bending Strength of Hot-Pressed β-Sialon with Z=1 H. Nakamura;s. Umebayashi;K. Kishi;E. Tani;K. Kobayashi
  10. Elements of X-Ray Diffraction(2nd ed.) B.D. Cullity
  11. Yogyo-Kyokai-Shi v.86 no.11 The Formation of Single Phase Si-Al-O-N Ceramics M. Mitomo;N. Kuramoto;M. Tsutsumi;H. Suzuki
  12. Am. Ceram. Soc. Bull. v.56 no.2 Effect of Composition and X-Phase on the Intrinsic Properties of Reaction-Sintered Sialon R.R. Wills;R.W. Stewart;J.M. Wimmer
  13. Am. Ceram. Soc. Bull. v.55 no.11 Intrinsic Thermal and Mechanical Properties of Reaction-Sintered $Si_2Al_2N_8O_2$ Sialon R.R. Wills;R.W. Stewart;J.M. Wimmer
  14. J. Am. Ceram. Soc. v.61 no.9-10 Insolubility of Mg in β-Si₃N₄in the system Al-Mg-Si-O-N L.J. Gauckler;J. Weiss;T.Y. Tien;G. Petzoq
  15. J. Am. Ceram. Soc. v.59 no.7 Farcture Toughness Determination by Indentation A.G. Evans;E.A. Charies
  16. 엔지니어링 세라믹스, 번역서 이홍림
  17. Yogyo-Kyokai-Shi v.93 no.3 Some Mechanical Properties of Hot-Pressed β-Sialon with SiC S. Umebayashi;H. Nakamura;E. Tani;K. Kishi;K. Kobayashi
  18. J. Am. Ceram. Soc. v.62 no.11-12 The System Si₃N₄-SiO₂-ZrN-ZrO₂ J. Weiss;L.J. Gauckler;T.Y. Tien
  19. High-Performance Ceramics v.14 no.1 J.G. Lee;I.B. Cutler
  20. Ceramic Materials and Components for Engines The Developments of Ceramics from Amorphous Silicon Nitride T. Kohtoku;T. Yamada;H. Miyazaki;T. Iwai;W. Bunk(ed.);H. Hausner(ed.)
  21. J. Mat. Sci. v.16 Determination of Phase Equilibria in the system Si-Al-Zr/N-O by Experiment and Thermodynamic Calculation J. Weiss;L.J. Gauckler;H.L. Lukas;G. Petzow;T.Y. Tien
  22. J. Am. Ceram. Soc. v.66 no.6 Intergranular Crack-Deflection Toughening in Silicon Carbide K.T. Faber;A.G. Evans
  23. Fracture Mechanics of Ceramics v.2 Criteria for Crack Extention and Arrest in Residual, Localized Stress Fields Associated with Seconed Phase Particles F.F. Lange;R.G. Bradt(ed.);D.P.H. Hasselman(ed.);F.F. Lange(ed.)
  24. J. Am. Ceram. Soc. v.63 no.9-10 Observations of the Fracture Toughness of β-Si₃N₄-β-SiC Composites C. Greskovich;J.A. Palm
  25. Modern Ceramic Engineering D.W. Richerson
  26. J. Am. Ceram. Soc. v.58 no.5-6 Hot-Pressed Si₃N₄ Zr-Based Additions R.W. Rice;W.J. McDonough