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논문 기본 정보

자료유형
학술저널
저자정보
Sin-il Lee (Gyeongsang National University) Md. R. Tanshen (Gyeongsang National University) Kwang-sung Lee (Gyeongsang National University) Myekhlai Munkhshur (Gyeongsang National University) Hyo-min Jeong (Gyeongsang National University) Han-shik Chung (Gyeongsang National University)
저널정보
한국동력기계공학회 동력시스템공학회지 한국동력기계공학회지 제17권 제5호
발행연도
2013.10
수록면
78 - 85 (8page)

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초록· 키워드

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A high thermal conductivity material, namely graphene is treated by planetary ball milling machine to transport the heat by increasing the temperature. Experiments were performed to assess the heat transfer enhancement benefits of coating the bottom wall of copper substrate with graphene. It is well known that the graphene is unable to disperse into base fluid without any treatment, which is due to the several reasons such as attachment of hydrophobic surface, agglomeration and impurity. To further improve the dispersibility and thermal characteristics, planetary ball milling approach is used to grind the raw samples at optimized condition. The results are examined by transmission electron microscopy, x-ray diffraction, Raman spectrometer, UV-spectrometer, thermal conductivity and thermal imager. Thermal conductivity measurements of structures are taken to support the explanation of heat transfer properties of different samples. As a result, it is found that the planetary ball milling approach is effective for improvement of both the dispersion and heat carriers of carbon based material. Indeed, the heat transfer of the ground graphene coated substrate was higher than that of the copper substrate with raw graphene.

목차

Abstract
1. Introduction
2. Experimental setup
3. Result and discussion
4. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2014-500-002742585