Paper Title:
Numerical Model for Multilayer Thin Films Irradiated by a Moving Laser Source
  Abstract

A two-dimensional transient analysis of the conjugate optical-thermal fields induced in a multilayer thin film structure on a glass substrate by a moving Gaussian laser source is carried out numerically. The workpiece is considered semi-infinite along the motion direction and its optical and thermophysical properties are assumed temperature dependent. The COMSOL Multiphysics 3.3 code has been used to solve the combined thermal and electromagnetic problem. The optical field is considered locally one dimensional and Maxwell equations are solved in order to evaluate the absorption in thin film. Results, in terms of transient temperature profiles and fields, are presented for different Peclet numbers and starting point of the heat source with respect to the workpiece boundary along the motion direction.

  Info
Periodical
Defect and Diffusion Forum (Volumes 283-286)
Edited by
Andreas Öchsner, Graeme E. Murch and Ali Shokuhfar
Pages
352-357
DOI
10.4028/www.scientific.net/DDF.283-286.352
Citation
N. Bianco, O. Manca, D. Ricci, "Numerical Model for Multilayer Thin Films Irradiated by a Moving Laser Source", Defect and Diffusion Forum, Vols. 283-286, pp. 352-357, 2009
Online since
March 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Shao Qing Guo, Wen Li Xu, Hong Yuan, Wei Hua Gu, Xi Tang Tian
Abstract:Residual distortion is a serious problem associated with welding thin aluminum alloy plates. As a distortion control technique static...
3263
Authors: Kazuki Takahashi, Kanji Yasui, Maki Suemitsu, Ariyuki Kato, Yuichiro Kuroki, Masasuke Takata, Tadashi Akahane
Abstract:Gallium nitride (GaN) films were grown on SiC/Si(111) substrates by hot-mesh chemical vapor deposition (CVD) using trimethylgallium (TMG)...
261
Authors: Rui Zhang, Hai Long Wang, Hong Liang Xu, Hong Xia Lu, Dao Yuan Yang
Abstract:SiC-based boundary layer capacitors were prepared by hot pressing. XRD, TEM and the high-resolution TEM techniques were used to characterize...
235
Authors: De Gong Chang, Xue Feng Wang, Fu Qin Yang, Jiang Zhong Wang
Abstract:The effects of the lubricant properties on the lubricating performance of the tripod sliding universal joint were studied under thermal...
302
Authors: Mohammad Hadi Kamrava, Farzad Bazdidi-Tehrani
Chapter 1: Materials Behavior
Abstract:In all industries which are related to heat, suitable thermal ranges are defined for each device to operate well. Consideration of these...
23