|Title||Comprehensive characterization of thermal properties of solids using thermal impedance|
|Publication Type||Journal Article|
|Year of Publication||2012|
|Authors||Martínez-Flores, JJ, Licea-Jiménez, L, Pérez-Garcia, SA, Rodríguez-Viejo, J, Alvarez-Quintana, J|
|Journal||Journal of Applied Physics|
|Keywords||Heat capacity, Materials properties, Thermal conductivity, Thermal diffusion, Thermal properties|
Thermal impedance Zth(iω) is a way of defining the thermophysical characteristics and behavior of thermal systems. Existing photoacoustic and photothermal approaches based on thermal impedance formalism merely allows a partial thermal characterization of the materials (generally, either thermal diffusivity or thermal effusivity). In this work, a new approach based on the thermal impedance concept in terms of its characteristic thermal time constant is developed from thermal quadrupoles formalism. The approach outlined in this contribution presents a set of analytical equations in which through a single measurement of thermal impedance is sufficient to obtain a comprehensive characterization of the thermophysical properties of solid materials in a simple way.
|Short Title||J. Appl. Phys. 112, 094901 (2012)|