Open AccessTHERMAL DIFFUSIVITY MEASUREMENT OF SOLID USING PYROELECTRIC SENSOR
Author(s) -
B. Z. Azmi,
Yug Ling,
Mansor Hashim,
Wan Mahmood Mat Yunus,
Mohd Maarof Abd. Moksin
Publication year - 2017
Publication title -
asean journal on science and technology for development/asean journal on science and technology for development
Language(s) - English
Resource type - Journals
eISSN - 2224-9028
pISSN - 0217-5460
DOI - 10.29037/ajstd.333
Subject(s) - thermal diffusivity , pyroelectricity , laser flash analysis , materials science , thermal , aluminium , thermal conductivity measurement , optics , composite material , optoelectronics , thermodynamics , physics , dielectric , ferroelectricity
The recently developed pyroelectric spectroscopic technique has been used to measure the thermal diffusivity of solids. The method has been applied to conductors and insulator where by the thermal wave is measured at various lateral distances on the sample between laser illuminated line and pyroelectric sensor position. The thermal diffusivity is obtained from the gradient of the plot of thermal wave signal versus the lateral distance. A good agreement to the previously reported thermal diffusivity value has been obtained for aluminium, copper and spray paint that is 0.809 cm2s-1, 1.128 3cm2s-1 and 1.547 x 10-3 cm2s-1 respectively.