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Laser Densification Modeling

Published online by Cambridge University Press:  28 February 2011

Taipau Chia,
L. L. Hench,
Chaobin Qin and
C. K. Hsieh
Taipau Chia
Affiliation:
Advanced Materials Research Center, University of Florida, One Progress Blvd., #14, Alachua, FL 32615.
L. L. Hench
Affiliation:
Advanced Materials Research Center, University of Florida, One Progress Blvd., #14, Alachua, FL 32615.
Chaobin Qin
Affiliation:
Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611.
C. K. Hsieh
Affiliation:
Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611.
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Abstract

A three-dimensional transient model for heat conduction in silica glass is developed. The model simulates a three-dimensional temperature distribution in a silica glass irradiated by a moving CO2 laser. Both the reflectivity of the glass surface and the strong attenuation of the laser energy in the glass medium are accounted for by a detailed radiation analysis. The energy absorbed by the glass is determined to be confined in a 10 μm thickness; the laser irradiation is thus treated as a boundary condition. The heat diffusion equation is solved by an alternating direction-implicit method.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990, 819
Copyright
Copyright © Materials Research Society 1990

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References

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