• Hai-Dong WangEmail author
Part of the Springer Theses book series (Springer Theses)


With the rapid development of femtosecond laser heating, integrated circuit, micro/nano electromechanical systems, the research on heat transfer in nanomaterials under high heat flux conditions has attracted increased attention. The traditional Fourier’s law is found to be broken under these extreme conditions. It is in urgent need to develop a general heat conduction model to replace Fourier’s law and give precise predictions for thermal analysis in practical applications. This thesis reports on the theoretical and experimental studies of non-Fourier heat conduction using a novel thermomass theory as basis. A femtosecond laser thermoreflectance system and a direct current electrical measurement system at liquid helium temperature have been established for experimental investigations. The heat transfer behaviors under the extreme conditions have been studied in-depth and the experimental data were utilized to verify the theoretical models. This chapter introduces the background of non-Fourier heat conduction and the recent research on the material properties of metallic nanofilms.


Femtosecond Laser Thermal Wave Boltzmann Transport Equation Interfacial Thermal Resistance Heat Diffusion Equation 
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© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Department of Engineering MechanicsTsinghua UniversityBeijingPeople’s Republic of China

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