基于三种技术的独立式柔性传感器用于磷酸二氢钾晶体各向异性热导率测量

Freestanding Flexible Sensor Based on 3 Technique for Anisotropic Thermal Conductivity Measurement of Potassium Dihydrogen Phosphate Crystal.

作者信息

Qiu Lin, Ma Yuhao, Ouyang Yuxin, Feng Yanhui, Zhang Xinxin

机构信息

School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China.

出版信息

Sensors (Basel). 2021 Nov 29;21(23):7968. doi: 10.3390/s21237968.

DOI:10.3390/s21237968

PMID:34883974

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8659730/

Abstract

A new freestanding sensor-based 3ω technique is presented here, which remarkably expands the application of traditional 3ω technology to anisotropic materials. The freestanding flexible sensor was fabricated using the mature flexible printed circuit production technique, which is non-destructive to the samples and applicable to porous surfaces. The thermal conductivities of potassium dihydrogen phosphate (KDP) crystal along the (100), (010) and (001) crystallographic planes were measured based on this new sensor at room temperature. We found that the freestanding flexible sensor has considerable application value for thermal properties' characterization for crystals with anisotropic thermophysical properties and other structures for which the traditional 3ω technique is not applicable.

摘要

本文提出了一种新型的基于独立传感器的三ω技术，该技术显著扩展了传统三ω技术在各向异性材料中的应用。独立式柔性传感器采用成熟的柔性印刷电路生产技术制造，对样品无损且适用于多孔表面。基于这种新型传感器，在室温下测量了磷酸二氢钾（KDP）晶体沿（100）、（010）和（001）晶面的热导率。我们发现，这种独立式柔性传感器对于表征具有各向异性热物理性质的晶体以及传统三ω技术不适用的其他结构的热性能具有相当大的应用价值。