A spherical cavity problem with nonlocal elastic effect considering memory-dependent thermoelastic diffusion and laser pulse heat source

2021 ◽  
pp. 1-19
Author(s):  
Geetanjali Gilhotra ◽  
P. K. Sharma
Keyword(s):  
Laser Pulse ◽  
Heat Source ◽  
Spherical Cavity ◽  
Thermoelastic Diffusion ◽  
Elastic Effect ◽  
Pulse Heat

A pulsed method for thermal-diffusivity measurements of polymer films with submicrometre thickness

1986 ◽  
Vol 64 (9) ◽  
pp. 1200-1203 ◽  
Author(s):  
H. Coufal ◽  
P. Hefferle
Keyword(s):  
Thin Films ◽  
Thermal Diffusivity ◽  
Laser Pulse ◽  
Heat Source ◽  
Polymer Films ◽  
Heat Pulse ◽  
Diffusivity Measurements ◽  
Pulsed Measurements

The use of pyroelectric calorimeters for pulsed measurements of the thermal diffusivity of thin films is described. The material under study is directly coated on to a pyroelectric calorimeter. A transient heat source is generated at the surface of the sample via absorption of a laser pulse. By analysis of the transmitted heat pulse, the thermal diffusivity of the sample can be determined. The potentials of this method are demonstrated on polymer films with thicknesses in the submicrometre range.

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