Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Mechanical Properties and Fabrication of Nanostructured Mg2SiO4-MgAl2O4 Composites by High-Frequency Induction Heated Combustion

기계적 활성화된 분말로부터 고주파유도 가열 연소합성에 의한 나노구조 Mg2SiO4-MgAl2O4 복합재료 제조 및 기계적 특성

  • Shon, In-Jin (Division of Advanced Materials Engineering and the Research Center of Advanced Materials Development, Engineering College, Chonbuk National University) ;
  • Kang, Hyun-Su (Division of Advanced Materials Engineering and the Research Center of Advanced Materials Development, Engineering College, Chonbuk National University) ;
  • Hong, Kyung-Tae (Advanced Functional Materials Research Center, Korea Institute of Science and Technology) ;
  • Doh, Jung-Mann (Advanced Functional Materials Research Center, Korea Institute of Science and Technology) ;
  • Yoon, Jin-Kook (Advanced Functional Materials Research Center, Korea Institute of Science and Technology)
  • 손인진 (전북대학교 신소재공학부, 신소재개발연구센터) ;
  • 강현수 (전북대학교 신소재공학부, 신소재개발연구센터) ;
  • 홍경태 (한국과학기술연구원, 계면 엔지니어링 연구센터) ;
  • 도정만 (한국과학기술연구원, 계면 엔지니어링 연구센터) ;
  • 윤진국 (한국과학기술연구원, 계면 엔지니어링 연구센터)
  • Received : 2011.05.09
  • Published : 2011.08.25
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Abstract

Nanopowders of MgO, $Al_2O_3$ and $SiO_2$ were made by high energy ball milling. The rapid sintering of nanostructured $MgAl_2O_4-Mg_2SiO_4$ composites was investigated by a high-frequency induction heating sintering process. The advantage of this process is that it allows very quick densification to near theoretical density and inhibition of grain growth. Nanocrystalline materials have received much attention as advanced engineering materials with improved physical and mechanical properties. As nanomaterials possess high strength, high hardness, excellent ductility and toughness, undoubtedly, more attention has been paid for the application of nanomaterials. Highly dense nanostructured $MgAl_2O_4-Mg_2SiO_4$ composites were produced with simultaneous application of 80MPa pressure and induced output current of total power capacity (15 kW) within 2min. The sintering behavior, gain size and mechanical properties of $MgAl_2O_4-Mg_2SiO_4$ composites were investigated.

Keywords

Acknowledgement

Supported by : 한국과학기술연구원

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