Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Mechanical Properties of SiC-$Si_3$$N_4$Composites Containing $\beta$-$Si_3$$N_4$Seeds

$\beta$-$Si_3$$N_4$종자입자 첨가 SiC-$Si_3$$N_4$복합재료의 기계적 특성

  • 이영일 (서울시립대학교 재료공학과) ;
  • 김영욱 (서울시립대학교 재료공학과) ;
  • 최헌진 (한국과학기술연구원 복합기능세라믹스연구센터) ;
  • 이준근 (한국과학기술연구원 복합기능세라믹스연구센터)
  • Published : 2001.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

$\beta$-Si$_3$N$_4$종자입자 첨가가 소결조제로 Y-Mg-Si-Al-O-N계 oxynitride glass를 사용하여 일축가압 소결을 행한 SiC-Si$_3$N$_4$복합재료의 미세구조와 기계적 특성에 미치는 영향을 고찰하였다. 길게 자란 $\beta$-Si$_3$N$_4$입자들과 등방성의 $\beta$-SiC 입자들이 균일하게 분포된 미세구조를 얻었다. $\beta$-Si$_3$N$_4$종자입자 함량이 증가함에 따라 SiC-Si$_3$N$_4$복합재료의 강도와 파괴인성이 증가하였고, 이는 복합화에 기인하는 결함크기의 감소와 길게 자란 $\beta$-Si$_3$N$_4$입자에 의한 균열가교 및 균열회절 등에 기인하였다. SiC-70 wt% Si$_3$N$_4$복합재료의 대표적인 강도와 파괴인성은 각각 770 MPa과 6.2 MPa.m$^{1}$2/ 이었다.

Keywords

References

  1. Special Ceramics v.6 The Role of Boron and Carbon in the Sintering of Silicon Carbide S. Prochazka
  2. J. Am. Ceram. Soc. v.77 no.2 In Situ-Toughened Silicon Carbide N. P. Padture
  3. J. Am. Ceram. Soc. v.77 no.6 Effects of α-SiC versus β-SiC Starting Powders on Microstructure and Fracture Toughness of SiC Sintered with Al₂O₃-Y₂O₃ Additives S. K. Lee;C. H. Kim
  4. J. Mater. Sci. v.32 Strength and Fracture Toughness of In Situ-toughened Silicon Carbide D. H. Cho;Y. W. Kim;W. J. Kim
  5. Ceram. Int. v.24 Microstructure and Mcchanical Properties of Self-reinforced Alpha-silicon Carbide C. S. Lee;Y. W. Kim;D. H. Cho;H. B. Lee;H. J. Lim
  6. J. Am. Ceram. Soc. v.81 no.12 Effect of Initial α-Phase Content on Microstructure and Mechanical Properties of Sintered Silicon Carbide Y. W. Kim;M. Mitomo;H. Emoto;J. G. Lee
  7. J. Am. Ceram. Soc. v.77 no.10 Toughness Properties of a Silicon Carbide with an Situ Induced Hetrogeneous Grain Structure N. P. Padture;B. R. Lawn
  8. J. Mater. Sci. v.34 Effect of Annealing on Mechanical Properties of Self-reinforced Alpha-silicon Carbide J. Y. Kim;Y. W. Kim;K. S. Cho
  9. 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
  10. J. Am. Ceram. Soc. v.79 no.6 In Situ-toughened Silicon Carbide-titanium Carbide Composites K. S. Cho;Y. W. Kim;H. J. Choi;J. G. Lee
  11. J. Eur. Ceram. Soc. Effect of Initial α-phase Content of SiC on Microstructure and Mechanical Properties of SiC-TiC Composites H. G. An;Y. W. Kim;J. G. Lee
  12. J. Mater. Sci. v.35 Pressureless Sintering of SiC-TiC Composites with Improved Fracture Toughness Y. W. Kim;S. G. Lee;Y. I. Lee
  13. J. Am. Ceram. Soc. v.77 no.12 Microstructure and Fracture Toughness of Hot-pressed Silicon Carbide Reinforced with Silicon Carbide Whiskers D. H. Lee;H. E. Kim;S. J. Cho
  14. J. Ceram. Soc. Jpn. v.99 no.10 New Design Concept of Structural Ceramics-Ceramic Nanocomposites K. Niihara
  15. Ceram. Int. v.21 Hot Isostatic Pressing of SiC/Si₃N₄ Composite with Rare Earth Oxide Additions D. Shaoming;J. Dongliang;T. Shouhong;G. Jingkun
  16. J. Am. Ceram. Soc. v.82 no.4 Fabrication and Mechanical Properties of Silicon Carbide-silicon Nitride Composites with Oxynitride Glass Y. W. Kim;Y. I. Lee;M. Mitomo;H. J. Choi;J. G. Lee
  17. 한국요업학회지 v.36 no.8 YAG상 첨가 탄화규소-질화규소 복합재료의 기계적 특성 이영일;김영욱;최헌진;이준근
  18. J. Mater. Sci. Effects of Additive Amount on Microstructure and Mechanical Properties of Silicon Carbide-silicon Nitride Composites Y. I. Lee;Y. W. Kim;H. J. Choi;J. G. Lee
  19. J. Am. Ceram. Soc. v.76 no.7 Effect of Grain of β-silicon Nitride on Strength, Weibull Modulus, and Fracture Toughness N. Hirosaki;Y. Akimune;M. Mitomo
  20. J. Am. Ceram. Soc. v.64 no.9 A Critical Evaluation of Indentation Techniques for Measuring Fracture Toughness: Ⅰ. Direct Crack Measurements G. R. Anstis;P. Chanticul;B. R. Lawn;D. B. Marshall
  21. J. Am. Ceram. Soc. v.76 no.3 Core/Rim Structure of Liquid-phase-sintered Silicon Carbide L. S. Sigl;H. J. Kleebe
  22. J. Eur. Ceram. Soc. v.18 Microstructure and High-temperature Strength of Si₃N₄-SiC Nanocomposite H. J. Park;H. E. Kim;K. Niihara
  23. J. Am. Ceram. Soc. v.81 no.7 Extra-large Grains in the Silicon Nitride Ceramics Doped with Yttria and Hafnia D. S. Park;S. Y. Lee;H. D. Kim;B. J. Yoo;B. A. Kim
  24. 한국요업학회지 v.25 no.5 α-질화규소 Whisker의 α/β 상변태 박지연;김종희
  25. 한국요업학회지 v.29 no.7 Si₃N₄결합 SiC의 소결과 기계적 특성에 미치는 첨가제의 영향 백용혁;신종윤;정종인;한창
  26. 한국요업학회지 v.33 no.11 질화규소의 피로균열진전과 입자가교효과 유성근