한국표면공학회지 (Journal of the Korean institute of surface engineering)

  • 제42권2호
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  • Pages.95-101
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  • 2009
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  • 1225-8024(pISSN)
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  • 2288-8403(eISSN)
한국표면공학회 (The Korean Institute of Surface Engineering)
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흑연표면의 열방사율 측정시 결정립 배향성의 영향

Thermal Emissivity Changes as a Function of Degree of Flakes Alignment on the Graphite Surface

  • 노재승 (금오공과대학교 신소재시스템공학부) ;
  • 안재상 (금오공과대학교 신소재시스템공학부) ;
  • 김범준 (금오공과대학교 신소재시스템공학부) ;
  • 전호연 (금오공과대학교 신소재시스템공학부) ;
  • 서승국 (금오공과대학교 신소재시스템공학부) ;
  • 김석환 (금오공과대학교 신소재시스템공학부) ;
  • 이상우 (금오공과대학교 신소재시스템공학부)
  • Roh, Jae-Seung (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Ahn, Jai-Sang (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Kim, Beom-Jun (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Jeon, Ho-Yeon (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Seo, Seung-Kuk (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Kim, Suk-Hwan (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Lee, Sang-Woo (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology)
  • 발행 : 2009.04.30
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초록

This study is the research on the thermal emissivity depending on the bulk graphite's alignment degree. Bulk graphites were manufactured by uni-axial pressing and subsequent heat treatment of natural graphite flakes with organic binder. The samples were prepared to be $0^{\circ}$ (relative to the 002 c-face), $45^{\circ}$, and $90^{\circ}$ (relative to the 100 a-face) for measuring alignment degree. The alignment degree of the sample was measured by XRD. The thermal emissivity was measured by infrared thermal image camera at $100^{\circ}C$ and compared with the value obtained by Infrared spectroscopy. The alignment degree and thermal emissivity of $0^{\circ}$ sample were measured to be 0 and 0.70 respectively. And those of $90^{\circ}$ sample were 0.73 and 0.80 respectively. The emissivity value was correlated with obtained by IR spectroscopy. Therefore it was considered that the thermal emissivity of the bulk graphite is correlated with the alignment degree.

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