Materials Transactions Online

Materials Transactions, Vol.45 No.01 (2004) pp.161-164
© 2004 The Japan Institute of Metals

Microstructure Control of Fiber-like TiN Particles in Hot Pressed Si3N4-O'SiAlON-TiN Composites

Byong-Taek Lee, In-Cheol Kang, Jae-Kil Han and Ik-Hyun Oh

Chungnam Research Center for Nano materials, School of Advanced Materials Engineering, Kongju National University, 182 Sinkwan-dong, Kongju 314-701, Korea

The microstructure control of TiN particles in hot pressed Si3N4-O'SiAlON-TiN composites was investigated using waste-Si and sponge Ti powders, dependent upon the ball milling and attrition milling processes. The composites were composed of multi-phases, including β-Si3N4, O'SiAlON and TiN phases regardless milling process used. In the composite using ball milling, TiN particles kept the original shape of sponge Ti powder and included many residual pores. Many microcracks were observed at the interfaces of Si3N4/TiN interfaces due to the difference of their thermal expansion coefficients. However, in the composite using attrition milling, the morphology of TiN particles was changed to a fiber shape, without residual pores and microcracks.

(Received 2003/8/12; Accepted 2003/11/27)

Keywords: waste-Si, Si3N4-TiN composite, TiN-fiber, microstructure

PDF(Free)PDF (Free) Table of ContentsTable of Contents

REFERENCES

  1. B. T. Lee, J. H. Yoo and H. D. Kim: Kor. J. Mater. Res. 9 (1999) 1170-1175.
  2. S. Y. Lee and B. T. Lee: Cera. Trans. 93 (1998) 51-57.
  3. B. T. Lee, H. G. Jeong and K. Hiraga: Mater. Trans. 43 (2002) 19-23.
  4. N. Tiegs, J. O. Kiggans and K. L. Ploetz: Ceram. Eng. Sci. Proc. 14 (1993) 744-748.
  5. Wang, C., Emoto, H. and Mitomo: J. Am. Ceram. Soc. 81 (1998) 1125-1130.
  6. G. Hillinger and V. Hlavacek: J. Amer. Ceram. Soc. 78 (1995) 495-496.
  7. B. T. Lee and H. D. Kim: J. Mater. Sci. 34 (1999) 6169-6176.
  8. A. Bellosi, S. Guicciardi and A. Tampieri: J. Europ. Ceram. Soc. 9 (1992) 83-89.
  9. B. T. Lee, Y. J. Yoon and K. H. Lee: Mater. Lett. 47 (2001) 71-76.
  10. S. PalDey and S. C. Deevi: Mater. Sci. Eng. A342 (2003) 58-63.
  11. B. T. Lee, D. H. Jang and T. S. Kim: Mater. Trans. 44 (2003) 1081-1086.
  12. C. P. Gazzara and D. R. Messier: Am. Ceram. Soc. Bull. 56 (1997) 777-780.
  13. B. T. Lee, D. H. Jang and T. S. Kim: J. Europ. Ceram. Soc. in press, (2003).
  14. B. T. Lee, B. T. Lee, S. Hayashi, T. Hirai and K. Hiraga: Mater. Trans., JIM. 34 (1993) 573-579.

[JIM HOME] [JOURNAL ARCHIVES]

© 2002 The Japan Institute of Metals
Comments to us : editjt@jim.or.jp