DocumentCode
3178169
Title
Photoacoustic investigation of thermal parameters of metallic alloys
Author
Aneeshkumar, B.
Author_Institution
Int. Sch. of Photonics, Cochin Univ. of Sci. & Technol., India
fYear
2003
fDate
22-27 June 2003
Firstpage
491
Abstract
In this paper, the variation of thermal diffusivity of Mg-Sc alloys at room temperature with increase in scandium content is investigated using photoacoustic (PA) technique. An open PA cell in the heat transmission configuration is employed for the measurement. A suitable modification of Rosencwaig-Gersho theory for the PA effect is made for the calculation of the thermal diffusivity due to thermoelastic bending of the alloy samples. The experimentally observed variation in thermal diffusivity is attributed to the reduction in the electronic contribution to thermal conductivity is due to impurity scattering.
Keywords
impurity states; magnesium alloys; photoacoustic spectroscopy; scandium alloys; thermal conductivity; thermal diffusivity; thermoelasticity; 293 to 298 K; Mg-Sc; Mg-Sc alloys; Rosencwaig-Gersho theory; electronic contribution; impurity scattering; metallic alloys; photoacoustic techinque; thermal conductivity; thermal diffusivity variation; thermal parameters; thermoelastic bending; Impurities; Scattering; Temperature; Thermal conductivity; Thermoelasticity;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN
0-7803-7734-6
Type
conf
DOI
10.1109/CLEOE.2003.1313554
Filename
1313554
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