한국분말재료학회지 (Journal of Powder Materials)

  • 제22권1호
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  • Pages.21-26
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  • 2015
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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Al 소재의 방열특성 향상을 위한 미세조직 제어 연구

Control of Nano-Scaled Surface Microstructure of Al Sample for Improving Heat Release Ability

  • 여인철 (인천대학교 기계시스템 공학부) ;
  • 강인철 ((재)인천테크노파크 융복합센터)
  • Yeo, In-Chul (School of Mechanical System Engineering, Incheon University) ;
  • Kang, In-Cheol (Technology Convergence Center, Incheon Technopark)
  • 투고 : 2014.11.27
  • 심사 : 2015.02.10
  • 발행 : 2015.02.28
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초록

In this study, the control of microstructure for increasing surface roughness of Al with an electro-chemical reaction and a post treatment is systematically investigated. The Al specimen is electro-chemically treated in an electrolyte. In condition of the post treatment at $100^{\circ}C$ for 10 min, a change of the surface microstructure occur at 50V (5 min), and a oxidized layer is at 400V, to which lead a decreasing surface roughness. The minimum temperature of the post treatment for a change of microstructure is $80^{\circ}C$. Moreover, in the condition of 300V (5 min), the electro-chemical reaction is followed by the post treatment at $100^{\circ}C$, the critical enduring time for the change of microstructure is 3 min. The longer post treatment time leads to the rougher surface. The treated Al specimen demonstrate better heat release ability owing to the higher surface roughness than the non-treated Al.

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참고문헌

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피인용 문헌

  1. Effect of Tin Addition on the Melting Temperatures and Mechanical Properties of Al-Si-Cu Brazing Filler Metals vol.26, pp.7, 2016, https://doi.org/10.3740/MRSK.2016.26.7.376