Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Mechanical Properties of the Pressureless Sintered Si3N4-TiN Ceramic Composities

상압소결 Si3N4-TiN 복합재료의 기계적성질

  • 송진수 (한국과학기술원 재료공학과) ;
  • 손용배 (한국과학기술원 재료공학과) ;
  • 김종희 (한국과학기술원 재료공학과)
  • Published : 1989.03.01
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Abstract

Si3N4-TiN electro-conductive ceramic composites with 7wt% Al2O3＋3wt% Y2O3 or 5wt% MgO as sintering aids were fabricated by pressureless sintering at 1,80$0^{\circ}C$ for 1h. The 3pt. flexural strength, KIC and Vickers hardness were measrued in order to investigate the effects of TiN on the mechanical properties. Also oxidation behavior was observed by measuring the weight gain after exposure to air at 1,10$0^{\circ}C$ for 100h. the reaction products between Si3N4 and TiN was not detected by XRD and EDS. Mechanical properties of the composites were not influenced by the addition of TiN less than 30vol%, but oxidation resistance of the composites was rapidly decreased with the amount of added TiN.

Keywords

References

  1. 工業材料 v.32 no.11 Electrical Discharge Machinable Si₃N₄ Ceramics Hisao Takeuchi;E.Kamizo
  2. Ceramics v.21 no.8 Electrical Discharge Machinable Ceramics-Chiefly Si₃N₄ M.Miyake;H.Takeuchi
  3. Yogyo-Kyokai Shi. v.96 no.9 Electro-Discharge Machining of Ceramics (Part 2)-On Electro-Conductive β-Sialon and Titanium Nitride Ceramic Composite M.Nakamura;K.Kanayama;W.Kanematsu;Y.Hirai
  4. Yogyo-Kyokai-Shi v.96 no.7 Some Mechanical Properties of Hot-Pressed β-Sialon-TiN Sintered Body Fabricated from α-Si₃N₄,Aluminum-iso-Propoxide and Titanium-iso-Propoxide K.Kishi;S.Umebayashi
  5. Poroshkovaya Metallurgiya v.7 no.223 Mechanical Properties of Silicon Nitride Composite Materials O.N Grigor'ev;S.I.Chugunova;A.M.Shatokhin;V.P.Yaroshenko
  6. Poroshkovaya Matallurgiya v.6 no.294 Mechanical Properties of Hot-Pressed Materials in the Sialon-Titanium Nitride System O.V.Bakun;A.Veshtedt;O.N.Grigor'ev;R.Kreer;V.A.Trefilov;D.Shnaider;V.P.Yaroshenko
  7. J.Am.Ceram.Soc. v.68 no.2 Fabrication of Si₃N₄ Ceramics with Metal Nitride Additives by Isostatic Hot-Pressing N.Uchida;M.Koizumi
  8. J.Mater.Sci. v.10 Equilibrium Penny-like Cracks in Indentation Fracture B.R.Lawn;E.R.Fuller
  9. Cer.Sci Eng.Proc. M.Y.Lee;M.P.Borom
  10. Yogyo-Kyokai-Shi v.91 no.9 Effect of TiN Addition on the Sintiring of Si₃N₄ Y.Kanno;Y.Kuwahara
  11. Yogyo-Kyokai-Shi v.85 no.8 Sintering of Si₃N₄with Al₂O₃ and Y₂O₃ M.Mitomo
  12. J.Am.Ceram.Soc. v.56 no.9 Effect of Microstructure on Si₃N₄-SiC Composite System F.F.Lange
  13. Phil.Mag. v.22 no.179 The Interaction of a Crack Front with a Second-Phase Dispersion F.F.Lange
  14. Mechanical Behavior of Ceramics R.W.Davidge
  15. Acta. Metall. v.31 Crack Deflection Proceses-Ⅰ.Theory K.T.Faber,;A.G.Evans
  16. Poroshkovaya Metallurgiya v.12 no.204 R.F.Voitovich