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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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The organic-inorganic hybrids of polyurethane (PU) and boron nitride (BN) modified with magnetite ($Fe_3O_4$) were prepared to investigate the effect of BN orientation under a magnetic field for enhancing the thermal conductivity of PU. The introduction of magnetite could be proved through scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). It was observed that the magnetite nanoparticles of 10-100 nm covered the BN surface. The thermal conductivity of the hybrids showed an increasing trend as the BN content increased. The hybrid containing 60 wt% of BN modified with magnetite without magnetic orientation exhibited a thermal conductivity that was 3.8 times higher than that of the neat PU. However, the same hybrid with a magnetic orientation exhibited thermal conductivity that was 10 times higher than that of the neat PU. Conclusively, the effect of the magnetite BN orientation under the magnetic field on the thermal conductivity was found to be very effective by forming a thermal path of BN platelet along the magnetic field direction in the hybrids.
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참고문헌 (15)
참고문헌 신청
R. Viswanath / 2000 / Thermal Performance Challenges from Silicon to System / Inter. Technol. J. Q3:6~8
K. C. Yung / 2010 / Thermal Performance of High Brightness LEDArray Package on PCB / Int. Commun. Heat Mass Transfer 37:1266~1272
R. Liu / 2011 / Thermal Optimization of GaNonSi HEMTs with Plastic Packaging / Microelectron, Reliab 51:1788~1791
W. Lin / 2009 / A Combined Process of In Situ Functionalization and Microwave Treatment to Achieve Ultrasmall Thermal Expansion of Aligned Carbon Nanotube-Polymer Nanocomposites : Toward Applications as Thermal Interface Materials / Adv. Mater 21:2421~2424
Y. Mamunya / 2006 / Electrical and Thermophysical Behaviour of PVC-MWCNT Nanocomposites / Compos. Sci. Technol 68:1981~1988
K. C. Yung / 2010 / Thermal Performance of High Brightness LEDArray Package on PCB / Int. Commun. Heat Mass Transfer 37:1266~1272
R. Liu / 2011 / Thermal Optimization of GaNonSi HEMTs with Plastic Packaging / Microelectron, Reliab 51:1788~1791
W. Lin / 2009 / A Combined Process of In Situ Functionalization and Microwave Treatment to Achieve Ultrasmall Thermal Expansion of Aligned Carbon Nanotube-Polymer Nanocomposites : Toward Applications as Thermal Interface Materials / Adv. Mater 21:2421~2424
Y. Mamunya / 2006 / Electrical and Thermophysical Behaviour of PVC-MWCNT Nanocomposites / Compos. Sci. Technol 68:1981~1988
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