二氧化硅纳米薄膜非平衡热导率研究

he heat transfer of insulation silica nano film relies on the phonon vibration in film. The thermal conductivity of the film is effected by the non-equilibrium of phonon vibration in film structure .The experimental method is an instant measuring method for thermal conductivity of thin film. The experimental method is used to measure the temperature rise and the thermal conductivity of silica thin film in low-frequency stage and high-frequency stage. The non-equilibrium thermal conductivity of silica thin film is analysed.