一种薄膜导热性能测试装置的研制
Development of a Thermal Conductivity Testing Device for Thin Films
方丹 1王云祥 1黄红平 1王震 1付晨1
作者信息
摘要
纳米碳材料复合薄膜具有优异的传热换热性能,被视为新一代热管理材料,已在产业中推广应用.准确测量其导热系数是评价薄膜传热性能的重要指标.本文基于3ω法原理,搭建一套薄膜导热性能测试装置,用于测量纳米碳材料复合薄膜导热系数及热扩散率,并使用SiO2薄膜对装置的可靠性进行验证.结果表明:SiO2薄膜导热系数与文献的标准值偏差小于5%,该装置可有效开展薄膜导热系数测量.
Abstract
Nano-carbon composite films have excellent heat and heat transfer properties,and are regarded as a new generation of thermal management materials,which have been widely used in the industry.Accurate measure-ment of thermal conductivity is an important index to evaluate heat transfer performance.Based on the principle of 3ωmethod,this paper builds a test device for the thermal conductivity of thin films,which is used to measure the thermal conductivity and thermal diffusivity of nano-carbon composite films,and uses SiO2 films to verify the relia-bility of the device.The results show that the deviation between the thermal conductivity of SiO2 film and the stand-ard value in the literature is less than 5%,and the device can effectively measure the thermal conductivity of the film.
关键词
纳米碳材料薄膜/热扩散率/导热系数/测试装置Key words
carbon nanomaterials composite thin film/thermal diffusivity/thermal conductivity/test device引用本文复制引用
基金项目
江苏省市场监督管理局科技项目(KJ21125085)
出版年
2024
NETL
NSTL
万方数据