本文使用3-omega方法对一种由垂直于石英玻璃表面生长的碳纳米管阵列组成的界面材料法向导热系数进行了测量。针对样品结构,提出一种一维简化模型,使用了等效热抗的概念对实验数据进行拟合,计算得到室温条件下(300K)本实验所用样品的导热系数约为17 W/(m·K)。分析了可能造成碳纳米管阵列导热系数偏小的各种因素。 This paper uses the 3-omega method to measure the normal thermal conductivity of an interfacial material composed of carbon nanotube arrays grown perpendicular to the surface of a quartz glass. A simplified one-dimensional model was proposed for the sample structure. The concept of equivalent thermal resistance was used to fit the experimental data. The calculated thermal conductivity of the sample used in this experiment was about 17 W / (m · K). Various factors that may cause the thermal conductivity of carbon nanotube arrays to be small are analyzed.