Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Preparation and Mechanical Properties of 3Y-TZP/SiC Composites

3-TZP/SiC 복합체의 제조 및 기계적 성질

  • 이홍림 (연세대학교 공과대학 요업공학과) ;
  • 이형민 (연세대학교 공과대학 요업공학과)
  • Published : 1992.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

Tetragonal zirconia powder with 3 mol% Y2O3 mas mixed with up to 30 vol% of ${\beta}$-SiC powders, and the mixtures were hot-pressed at 1500$^{\circ}C$ for 60 min under a pressure of 30 MPa in Ar atmosphere. Flexural strength and fracture toughness were measured at room-and high-temperature (1000$^{\circ}C$). Evolution of microstructure was also conducted to investigate the effects of SiC addition on the properties of 3Y-TZP ceramics. Average grain size of the composites was about 0.5 $\mu\textrm{m}$, and decreased with SiC addition. Both room- and high-temperature mechanical properties of the composites were improved with SiC content. Particularly, high-temperature strength and fracture toughness of 3Y-TZP/30v/o SiC composite were twice as high as those of 3Y-TZP. The hardness of the composites also increased with SiC content and reached maximum value at 3Y-TZP/30v/o SiC composite.

Keywords

References

  1. Nature v.258 Ceramic Steel? R.C. Garvie;R.H.J. Hannink;R.T. Pascoe
  2. J. Am Ceram. Soc. v.60 no.5-6 Mechanisms of Toughening Partially Stablized Zirconia(PSZ) D.L. Porter;A.H. Heuer
  3. Fracture Mechanics of Ceramics v.6 The Influence of Precipitate Size and Temperature on the Fracture Toughness of Calcia-and Magnesia-Partially Stabilized Zriconia M.V. Swam;R.H.J. Hannink;R.C. Garvie;R.C. Bradt(ed);A.G. Evans(ed);D.P.H. Hasselman(ed);F.F. Lange(ed)
  4. J. Mater Sci. v.17 no.1 Transformation Toughening,Part 3:Experimental Observations in the ZrO₂-Y₂O₃System F.F. Lange
  5. J. Am. Ceram. Soc. v.68 no.1 Strength and Fracture Toughness of Isostatically Hot-presed Composites of Al₂O₃and Y₂O₃-Partially Stabilized ZrO₂ K. Tsukuma;K. Ueda;M. Shimada
  6. J. Am. Cream Soc. v.63 no.3-4 Mechanical Properties of Sintered, In Situ-Reacted Mullite-Zirconia Composites N. Claussen;J. Jahn
  7. Advances in Ceramics v.12 Effect of Microstructure on the Strength of Y-TZP Components M. Matsui;T. Soma;I. Oda;N. Claussen(ed);M. Ruhle(ed);A.H. Heuer(ed)
  8. Advances in Ceramics v.12 Preparation of Y₂O₃-stabilized Tetragonal ZrO₂Polycrystals(Y-TZP) from Different Powders H Schubert;N. Claussen;M. Ruhle;N. Claussen(ed);M. Ruhle(ed);A.H. Heuer(ed)
  9. Yogyo-Kyokai-Shi v.91 Tensile Strength of Hot-Pressed ZrO₂-Y₂O₃at High Temperature K. Matsusue;Y. Fujisawa;K. Takahara
  10. J Am Cram. Soc. v.69 Tetragonal Zirconia Polycrystals Reinforced with SiC Whiskers N. Claussen;K. Weisskopf;M. Ruhle
  11. Fracture Mechanics of Ceramics v.7 Mechanical Properties of SiC Whisker Reinforced TZP N. Claussen;K.L. Weisskopf;M. Ruhle;R.C. Bradt(ed);A.G. Evans(ed);D.P.H. Hasselman(ed);F.F. Lange(ed)
  12. J Am. Ceram. Soc. v.56 F.F. Lange
  13. Fracture Mechanics of Ceramics v.7 High-Temperature Mechanical Properties of Al₂O₃-SiC Composites K, Niihara;A. Nakahira;T. Uchiyama;T. Hirai;R.C. Bradt(ed);A.G. Evans(ed);D.P.H. Hasselman(ed);F.F. Lange(ed)
  14. Sintering Additives for Zircona Ceramics P.E. Evans
  15. J. Am. Ceram. Soc. v.56 no.6 R.C. Garvie;P.S. Nicholson
  16. Modern Ceramic Engineering D.W. Richerson
  17. Cer Sci. Eng Proc. Lee;Brun
  18. 第21回 窯業基礎討論會 講演要旨集 新原皓一
  19. Plane Strain Crack Toughness Testing of High-Strength Metallic Materials W.F. Brown;J.E. Strawley
  20. Am. Ceram. Soc. Bull v.65 K. Tsukuma
  21. J. Am Ceram Soc. v.67 G.C. Wei;P.F. Becher
  22. J. Mater. Sci. v.22 Relation of Transformation Temperature to the Fracture Toughness of Transformation-Toughened Ceramics P.F. Becher;M.V. Swain;M.K. Ferber