Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
권호 표지

Synthesis and Properties of Nano-sized Ni-Fe Alloy Particle Dispersed ${Al_2}{O_3}$Nanocomposite

나노크기 Ni-Fe 합금입자 분산${Al_2}{O_3}$ 나노복합재료의 합성 및 특성

  • 남궁석 (한양대학교 금속재료공학과) ;
  • 오승탁 (한양대학교 금속재료공학과) ;
  • 이재성 (한양대학교 금속재료공학과) ;
  • 정영근 (요업기술원 나노소재팀) ;
  • 김형섭 (충남대학교 금속공학과)
  • Published : 2001.11.01
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Abstract

An optimum route to fabricate the $A1_2O_3/Fe-Ni$ alloy nanocomposites with sound microstructure and enhanced mechanical properties as well as magnetism was investigated. To prepare homogeneous nanocomposite powders of Fe-Ni alloy and $Al_2O_3$, the solution-chemistry routes using $Al_2O_3 \; Ni(NO_3)_2{\cdot}6H_2O$ and $Fe(NO_3)_3{\cdot}9H_2O$ powders were applied. Microstructural observation of the powder mixture revealed that the Fe-Ni alloy particles of about 20 nm in size were homogeneously surrounded $A1_2O_3$, forming nanocomposite powder. The hot-pressed composite showed improved fracture toughness and magnetic response. These results suggest that the synergy materials with an improved mechanical properties and excellent functionality can be fabricated by controlled powder preparation and consolidation processing.

Keywords

References

  1. K. Niihara, J. Ceram. Soc. Jpn., 99 (10), 974 (1991)
  2. T. Sekino and K. Niihara, J. Mater. Sci., 32 (15), 3943 (1997) https://doi.org/10.1023/A:1018668900343
  3. S.-T. Oh, T. Sekino and K. Niihara, J. Eur. Ceram. Soc., 18 (1), 31 (1998) https://doi.org/10.1016/S0955-2219(97)00099-X
  4. T. Sekino, T. Nakajima, S. Ueda and K. Niihara, J. Am. Ceram. Soc., 80 (5), 1139 (1997)
  5. S.-T. Oh, M. Sando and K. Niihara, J. Am. Ceram. Soc., 81 (11), 3013 (1998)
  6. H. Hyuga, Y. Hayashi, T. Sekino and K. Niihara, Nanostr. Mater., 9 (1-8), 547 (1997)
  7. S.-T. Oh, M. Sando and K. Niihara, J. Mater. Sci., 36 (7), 1817 (2001) https://doi.org/10.1023/A:1017541112681
  8. B.D. Cullity, Introduction to Magnetic Materials, pp. 525, Addison-Wesley, Massachusetts, USA, (1972)
  9. K. Niihara, R. Morena and D.P.H. Hasselman, J. Mater. Sci. Lett., 1, 13 (1982) https://doi.org/10.1007/BF00724706
  10. P. Knorr, J.G. Nam and J.S. Lee, Metall. Mater. Trans., 31A (2), 503 (2000) https://doi.org/10.1007/s11661-000-0286-9
  11. J.S. Lee, T.H. Kim, J.H. Yu and S.W. Chung, Nanostr. Mater., 9 (1-8), 153 (1997)
  12. P. Knorr, B.S. Kim and J.S. Lee, Mat. Res. Symp. Proc., 577, 409 (1999)
  13. S. Schicker, T. Erny, D. E. Garcia, R. Janssen and N. Claussen, J. Eur. Ceram. Soc., 19 (13-14), 2455 (1999) https://doi.org/10.1016/S0955-2219(99)00107-7
  14. C.S. Smith, Trans. Metall. Soc. AIME, 175, 15 (1948)
  15. A.G. Evans, J. Am. Ceram. Soc., 73 (2), 187 (1990) https://doi.org/10.1111/j.1151-2916.1990.tb06493.x
  16. B. Budiansky, J.C. Amazigo and A.G. Evans, J. Mech. Phys. Solids., 36 (2), 167 (1988) https://doi.org/10.1016/S0022-5096(98)90003-5
  17. X.Y. Qin, J.G. Kim and J.S. Lee, Nanostr. Mater., 11 (2), 259 (1999) https://doi.org/10.1016/S0965-9773(99)00040-9
  18. X.Y. Qin, J.S. Lee and J.G. Kim, J. Appl. Phys., 86 (4), 2146 (1999) https://doi.org/10.1063/1.371022