Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
권호 표지
DOI QR코드

DOI QR Code

Microstructural Characteristics of Al2O3/Cu Nanocomposites Depending on Fabrication Process

Al2O3/Cu 나노복합체 제조공정에 따른 미세조직 특성

  • 강계명 (서울산업대학교 신소재공학과) ;
  • 오승탁 (서울산업대학교 신소재공학과)
  • Published : 2003.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

The microstructural characteristics of $Al_2$$O_3$/Cu composites hot-pressed at different temperatures for atmosphere switching from $H_2$to Ar have been studied. When the composite atmosphere was switched at $1000^{\circ}C$ it led to more homogeneous microstructure than when the atmosphere was switched at $1450^{\circ}C$. The strong sensitivity of Cu to atmosphere, especially the oxygen content in the atmosphere, was found to be responsible for the observed change, based upon the interfacial phenomena related to the formation of $CuAlO_2$. The practical implication of these results is that an optimum processing condition for the design of homogeneous microstructure and stable properties can be established.

Keywords

References

  1. K. Niihara, J. Ceram. Soc. Jpn., 99, 974 (1991) https://doi.org/10.2109/jcersj.99.974
  2. K. Niihara and A. Nakahira, Mater. Sci. Monogr. (Adv. Struct. Inorg. Compos.), 68, 637 (1991)
  3. T. Sekino and K. Niihara, Nanostruct. Mater., 6, 663 (1995) https://doi.org/10.1016/0965-9773(95)00145-X
  4. T. Sekino, T. Nakajima, S. Ueda and K. Niihara, J. Am. Ceram. Soc., 80, 1139 (1997) https://doi.org/10.1111/j.1151-2916.1997.tb02956.x
  5. H. Hyuga, Y. Hayashi, T. Sekino and K. Niihara, Nanostruct. Mater., 9, 547 (1997) https://doi.org/10.1016/S0965-9773(97)00121-9
  6. S. -T. Oh, M. Sando and K. Niihara, Scrtipta Mater., 39, 1413 (1998) https://doi.org/10.1016/S1359-6462(98)00314-5
  7. S. J. Ko, K. H. Min, K.-M. Kang, Y. D. Kim and I. -H. Moon, Korea J. Mater. Res., 12, 656 (2002) https://doi.org/10.3740/MRSK.2002.12.8.656
  8. S.-T. Oh, T. Sekino and K. Niihara, J. Europ. Ceram. Soc., 18, 31 (1998) https://doi.org/10.1016/S0955-2219(97)00099-X
  9. S. -T. Oh, T. Sekino, and K. Niihara, Nanostruct. Mater., 10, 327 (1998) https://doi.org/10.1016/S0965-9773(98)00072-5
  10. Gmelins Handbuch der Anorganischen Chemie, Cu., 8. Aufl., System-Nummer 60, Verlag Chemie GmbH, 84 (1958)
  11. C. S. Smith, Trans. Metal. Soc. AIME, 175, 15 (1948)
  12. S.P.Mehrotra;A.C.D.Chaklader Metall. Trans. B https://doi.org/10.1007/BF02657490
  13. B. C. Allen and W. D. Kingery, Trans. Metal. Soc. AIME, 215, 30 (1959)
  14. B. Gallois and H. P. Lupis, Metall. Trans. B, 12B, 549 (1981) https://doi.org/10.1007/BF02654326
  15. K. T. Jacob and C. B. Alcock, J. Am. Ceram. Soc., 58, 192 (1975) https://doi.org/10.1111/j.1151-2916.1975.tb11441.x
  16. R. Schmid, Metall. Trans. B, 14B, 473 (1983) https://doi.org/10.1007/BF02654367
  17. K. P. Trumble, Acta metall. mater., Suppl., 40, S105 (1992) https://doi.org/10.1016/0956-7151(92)90269-K
  18. P. J. F. Harris, Interm. Mater. Reviews, 40, 97 (1995) https://doi.org/10.1179/095066095790326102