Analytical Solution of Unsteady Heat Diffusion within a Porous Copper Layer Deposited on Alumina Substrate and Subjected to a Moving Laser Beam
Analytical Solution of Unsteady Heat Diffusion within a Porous Copper Layer Deposited on Alumina Substrate and Subjected to a Moving Laser Beam
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DOI：
10.4028/www.scientific.net/ddf.273-276.52
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发表时间：
2008-01
影响因子：
--
通讯作者：
Hamid Belghazi;Mohammed El Ganaoui;J. Labbe
中科院分区：
文献类型：
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作者：
Hamid Belghazi;Mohammed El Ganaoui;J. Labbe
本文给出了高斯激光作用下有限维两层材料不完全热接触瞬态热传导的解析方法。这项研究的结果一方面可以很容易地获得工件两层温度的分布和演变；另一方面阐明了接触质量对界面温度间隙的影响。本研究还考虑了多孔颗粒沉积层的影响。以激光熔覆技术设计电子轨道为例，研究了激光熔覆技术在表面处理领域的应用；该模型也可用于估算层与层之间的热接触电阻。
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.