Record number :
1361407
Title of article :
Effects of intergranular gas bubbles on thermal conductivity
Author/Authors :
Chockalingam، نويسنده , , K. and Millett، نويسنده , , Paul C. and Tonks، نويسنده , , M.R.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
5
From page :
166
To page :
170
Abstract :
Model microstructures obtained from phase-field simulations are used to study the effective heat transfer across bicrystals with stationary grain boundary bubble populations. We find that the grain boundary coverage, irrespective of the intergranular bubble radii, is the most relevant parameter to the thermal resistance, which we use to derive effective Kapitza resistances that are dependent on the grain boundary coverage and Kaptiza resistance of the intact grain boundary. We propose a model to predict thermal conductivity as a function of porosity, grain-size, Kaptiza resistance of the intact grain boundary, and grain boundary bubble coverage.
Journal title :
Journal of Nuclear Materials
Journal title :
Journal of Nuclear Materials
Serial Year :
2012
Link To Document :
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