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International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

ENHANCEMENT OF INTERFACIAL THERMAL CONDUCTANCE OF SIC BY OVERLAPPED CARBON NANOTUBES AND INTERTUBE ATOMS

Chengcheng Deng
School of Energy and Power Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Hongshan District, Wuhan 430074, P. R. China

Xiaoxiang Yu
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Luoyu Road 1037, Hongshan District, Wuhan 430074, P. R. China; Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Hongshan District, Wuhan 430074, P. R. China

Xiaoming Huang
School of Energy and Power Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Hongshan District, Wuhan 430074, P. R. China

Nuo Yang
Key Laboratory of Coal Combustion, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; Nano Interface Center for Energy(NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China

DOI: 10.1615/IHTC16.mpe.022253
pages 5953-5959


KEY WORDS: Photon, phonon and electron transport, Nano/Micro scale measurement and simulation, interfacial thermal conductance, silicon carbide, overlapped CNTs

Abstract

A new way was proposed to enhance the interfacial thermal conductance (ITC) of silicon carbide (SiC) composite through the overlapped carbon nanotubes (CNTs) and intertube atoms. By non-equilibrium molecular dynamics simulations, the dependence of ITC on both the number of intertube atoms and the temperature were studied. It is indicated that the ITC can be significantly enhanced by adding intertube atoms, and finally becomes saturated with the increase of the number of intertube atoms. And the mechanism is discussed by analyzing the probability distributions of atomic forces and vibrational density of states. The work may provide some guidance on enhancing the ITC of CNT-based composites.

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