Processing of functionally gradient materials by directed metal oxidation method

직접 산화법에 의한 경사기능 재료의 제조에 관한 연구

  • Kim, J.Y. (Dept. of Material Science and Engineering, Hong Ik University) ;
  • Kim, K.S. (Dept. of Heat Treatment, Cheonan National Junior Technical College) ;
  • Kim, S.Y. (Dept. of Material Science and Engineering, Hong Ik University)
  • 김재윤 (홍익대학교 금속재료공학과) ;
  • 김경식 (천안공업전문대 열처리과) ;
  • 김석윤 (홍익대학교 금속재료공학과)
  • Published : 1996.12.30

Abstract

The direct reaction method has been used for the fabrication of Al-Mg/$Al_2O_3$ functionally gradient materials. It was found that the reaction layer of the Al-Mg/$Al_2O_3$ powder compact at $900^{\circ}C$ under air atmosphere led to the formation of reaction layers with varying ceramic phase contents. As the results of experiments by using the TGA system, the characteristics and growth behavior of the reaction layers were affected by the reaction temperature, the gas flow rate, the Mg contents and the $Al_2O_3$ contents.

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Acknowledgement

Supported by : 한국 과학 재단