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Numerical Simulation of Microwave Assisted Laser Melting Alumina
(*) Corresponding author
DOI: https://doi.org/10.15866/ireme.v9i5.2042
Abstract
Surface modification of alumina ceramics is rapidly gaining importance due to increased utilization of alumina ceramics in structural, electronic and biomedical applications where performance is determined primarily by the surface properties. One of the main problems that emerge in the laser treatment of ceramics is the formation of cracks during the processing. Indeed, during laser control melting process, high temperature gradients are generated in the irradiated region, which in turn, develops excessive thermal stress levels in the laser treated region. This limits the practical applications of the resulting alumina tiles. The aim of this work is to explore numerically the combination of laser and microwaves energies to achieve rapid surface treatment with controlled thermal stress and crack formation during cooling. The simulation use finites volumes method in FORTRAN program.
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