Title of article :
Analysis of thermal diffusivity in aluminum (particle)-filled PMMA compounds
Author/Authors :
Goyanes، نويسنده , , S.N. and Marconi، نويسنده , , J.D. and Kِnig، نويسنده , , P.G. and Rubiolo، نويسنده , , G.H. and Matteo، نويسنده , , C.L. and Marzocca، نويسنده , , A.J.، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2001
Pages :
8
From page :
5267
To page :
5274
Abstract :
The thermal diffusivity of particulate compounds of polymethylmethacrylate (PMMA) and aluminum powder was evaluated from measurements of temperature in samples during heating in the range of temperature between 100 and 370 K. Samples were prepared with a filler volume fraction of up to 0.15. s were analyzed in the framework of the Hashin–Shtrikman relationship, based on variational principles, and within Nielsenʹs model, modified to describe thermal diffusivity. For this purpose, the dependence of specific heat and density of compounds upon temperature was calculated. It will be shown that Nielsenʹs model can predict the behavior of the thermal diffusivity within the whole range of temperatures of the tested compounds, while the Hashin–Shtrikman relationship underestimates the experimental values.
Keywords :
Aluminum–PMMA compounds , thermal diffusivity , thermal conductivity
Journal title :
Polymer
Serial Year :
2001
Journal title :
Polymer
Record number :
1714518
Link To Document :
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