Thermal Diffusivity Measurements by Photothermal and Thermographic Techniques

In Situ Measurement of Thermal Diffusivity in Anisotropic Media

“…Moreover, no universal technique applicable to all materials, temperature ranges, and state of the matter of the material under investigation is known so far. The current state of thermal diffusivity and conductivity measurements is described in [6] and [7] where advantages, disadvantages, and fields of application of the existing methods are described. This discussion will not be repeated here.…”

Infrared thermography protocol for simple measurements of thermal diffusivity and conductivity

“…Therefore, these measurements are relatively delicate to achieve. Photothermal thermography, which uses generally the flash method [6], appears as a versatile tool for these measurements with no contact detection [7][8][9]. However the comparison between experimental thermogram and a thermocinetic model to identify parameters allows only thermal diffusivity to deduced.…”

A review on simultaneous determination of thermal diffusivity and heat transfer coefficient

“…The least squares estimation, to use a given set of experimental time-temperature data, was first proposed by Beck (1963). Now, these methods range from the given simple methodologies to modern sophisticated methods using laser pulses and infrared detectors to measure the time for the peak in a thermal wave to pass through a thin sample (Cernuschi et al, 2004;Woodfield et al, 2007). Determining the composition of the material and then using predictive equations can also be given as an example for experimental determination (Mendonca et al, 2005).…”