The laser surface modification of advanced ceramics: A modeling approach

Autores: Samant, A.N.|Harimkar, S.P.|Dahotre, N.B.
Fuente: Journal of materials
59 (8), 35-38
2007

A numerical approach for predicting microstructures during the laser surface modification of ceramics has been proposed. Laser surface modification is a near-non-equilibrium or non-equilibrium process involving high cooling rates (10(2)-10(8)K/s) leading to rapid solidification. As the basic governing solidification theory behind conventional processes like casting and laser processing is the same, the approach and the theory behind the conventional processes can be extended to such near-non-equilibrium processes by adequately modifying the conventional models. This study looks at various challenges in modeling the laser processing phenomena and elaborates on present efforts and future modeling goals