Analytical Solution of Unsteady Heat Diffusion within a Porous Copper Layer Deposited on Alumina Substrate and Subjected to a Moving Laser Beam

Hamid Belghazi; Mohammed El Ganaoui; J.C. Labbe

doi:10.4028/www.scientific.net/DDF.273-276.52

Paper Titles

Analysis of the Time-Dependent Heating on the Natural Convection from a Vertical Open Ended Porous Cylinder
p.28

Sonochemical Synthesis of SnO/ZnO Nano-Composite: The Effects of Temperature and Sonication Power
p.34

Designing Cryogenic Vapour-Cooled Current Leads
p.40

Magnetically Stabilized and Fluidized Beds: Heat and Mass Transfer
p.46

Analytical Solution of Unsteady Heat Diffusion within a Porous Copper Layer Deposited on Alumina Substrate and Subjected to a Moving Laser Beam
p.52

Growth Kinetics of Al-Si-Fe Intermetallics during Hot Dipping of Steel
p.58

Production of Electrical Steel by Hot Dipping in Aluminium
p.63

Microstructure Characterization by EBSD of Hot Rolled High-Silicon Steel
p.69

The Enhanced Kinetics of Precipitation Effects in Ultra Fine Grained Mg Alloys Prepared by High Pressure Torsion
p.75

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Analytical Solution of Unsteady Heat Diffusion within a Porous Copper Layer Deposited on Alumina Substrate and Subjected to a Moving Laser Beam

Abstract:

An analytical approach of transient heat conduction in a two layered material, in finite dimensions within imperfect thermal contact, subjected to a moving Gaussian laser beam was achieved. The result of this study allows on the one hand an easy access to the distribution and the evolution of the temperature in both layers of the workpiece; on the other hand permits to clarify the influence of the contact quality on the temperature gap at the interface. The effect of a porous grannular deposit layer was also considered in this study. A design of electronic tracks by laser cladding was studied as an application example in the surface treatment area; this model can be also used to estimate the thermal contact resistance between layers.