한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제33권2호
  • /
  • Pages.169-176
  • /
  • 1996
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

$\alpha$-$\beta$ SiAlON의 미세구조 형성과 특성

Microstructure Formation and mechanical Properties of $\alpha$-$\beta$

  • 최민호 (성균관대학교 재료공학과) ;
  • 김득중 (성균관대학교 재료공학과)
  • 발행 : 1996.02.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The specimens which were prepared from $\alpha$-Si3N4 with additions of YAG(3Y2O3.5Al2O3)-10 wt% and various AlN contents were sintered in N2 atmosphere at 1$700^{\circ}C$ The effect of $\alpha$,$\beta$-solid solution contents and sintering time on mechanical properties were investigated. As the content of $\beta$-solid solution and sintering time increased the hardness is reduced but the hardness of specimen sintered over 10 hours is constant irrespective of sintering time. While the fracture toughness increased with increasing of $\beta$-solid solution and sintering time. The fracture toughness of specimen with 80% $\beta$-solid solution content increased from 3.89 to 6.66 MPam1/2 with sintering sintering up to 20 hours/ But the amount of increased fracture toughness of specimen with below 20% $\beta$-solid solution content is not significant.

키워드

참고문헌

  1. Proc. of International Symposium on Ceramic Components for Engine Pressureless Sintered Si₃N₄Alloys for Application in Automotive Engines G. Petzow;P. Greil;S. Somiya(ed.);E. Kanai(ed.);K. Ando(ed.)
  2. ANL/CNSV-45 Ceramic Rocker Turbochargers : A Case Study of Near-Term Application of High-strength Ceramics R.P. Larsen;L.R. Johnson
  3. ASME Paper 85-IGT-149 M.F. Lasker;R.P. Craig;J.L. Mason
  4. J. Am. Ceram. Soc. v.7 no.9 Thermal Decomposition in the System Si-Y-Al-O-N D.R. Messier;E.J. Deguire
  5. J. Am. Ceram. Soc. Comm. v.64 Stability of Si₃N₄and Liquid Phase(s) During Sintering C. Greskovich;S. Prochazka
  6. J. Am. Ceram. Soc. v.75 no.1 Microstructural Development During Gas-Pressure Sintering of α-Silicon Nitride M. Mitomo;S. Uenosono
  7. J. Am. Ceram. Soc. v.62 no.7-8 Fracture Toughness of Si₃N₄as a Function of the Initial α-Phase Content F.F. Lange
  8. Acta. Metall. v.31 no.4 Crack Deflection ProcessesⅡ. Experiment K.T. Faber;A.G. Evans
  9. J. Am. Ceram. Soc. v.71 no.12 Toughening Behavior in Whisker-Reinforced Ceramic Matrix Composites P.F. Becher;C.-H. Hsueh;P. Angelim;T.N. Tiegs
  10. J. Am. Ceram. Soc. v.74 no.2 Microstructural Design of Toughned Ceramics P.F. Becher
  11. Am. Ceram. Soc. Bull. v.66 no.2 Sintered Al₂O₃-SiC-Whisker Composition T.N. Tiegs;P.F. Becher
  12. J. Am. Ceram. Soc. Bull. v.65 Gas-Pressure Sintering of Si₃N₄with Concurrent Addition of Al₂O₃and 5 wt% Rare Earth Oxide : High Fracture Toughness Si₃N₄with Fiber Like Structure E. Tani;S. Umebayashi;K. Kishi;K. Kobayashi;M. Nishijima
  13. Non-Oxide Technical and Engineering Ceramics Characterization and Properties of Sialon Materials T. Ekstrom;N. Ingelstrom
  14. Material Science and Engineering v.A109 Effect of Composition, Phase Content and Microstructure on the Performance of Yttrium Si-Al-O-N Ceramics T. Ekstrom
  15. J. Mater. Sci. Lett. v.14 Composition and Stability of Y-Si-Al-O-N Solid Solutions Based on α-Si₃N₄Structure G. Grand;J. Demit;J. Ruste;J.P. Torre
  16. Mechanical Behavior v.3 The Structure and Properties of Materials H.W. Hayden;W.G. Moffatt;Wulff
  17. J. Am. Ceram. Soc. v.59 no.371 Equilibrium Penny-like Cracks in Indentation Fracture B.R. Lawn;E.R. Fuller
  18. J. Am. Ceram. Soc. v.77 no.1 Reaction Hot Pressing of α'-and β'-SiAlON Ceramics S.L. Hwang;I.W. Chen
  19. J. Am. Ceram. Soc. v.66 no.6 Formation of α-Si₃N₄ Solid Solutions in the System α-Si₃N₄-AlN-Y₂O₃ Z.K. Huang;P. Greil;G. Petzow
  20. Nitrogen Ceramics The Crystal Chemistry of the Sialon and Related Nitrogen Ceramics K.H. Jack;F.L. Riley(ed.)
  21. Kinetics of Microstructural Change during Liquid Phase Sintering of Sialon D.D. Lee
  22. Chemical Bonds and bond Energy R.T. Sanderson(ed.)
  23. The Mechanical of Phase Transition and Microstructure Development in M-Si-Al-O-N System S.M. Han
  24. Powder Metall. Int. v.11 no.4 Reaction Sintering Forming β-Si₃N₄Solid Solutions in the System Si, Al/N, O : Sintering of Si₃N₄-AlN-Al₂O₃Mixtures S. Boskovic;L.J. Gaukler;G. Petzow;T.-Y. Tien
  25. Ceramic Hardness I.J. McColm
  26. J. Mater. Sci. no.4 Hardness of Dense α- and β-Si₃N₄Ceramics C. Greskovich;G.E. Gazza
  27. J. Am. Ceram. Soc. no.64 Grain Size Dependence of Fracture Energy in Ceramics : I. Experiment R.W. Rice;S.W. Freiman;P.F. Becher
  28. J. Am. Ceram. Soc. v.75 no.2 SiAlON Ceramics T. Ekstrom;M. Nygrwn