Hybridization microwave and laser for melting of ceramic surface

In this work the numerical calculation was used to obtain the temperature profile with preand post-heating by microwave. The laser surface melting and re-solidification has been applied to eliminate pore and create homogeneous surface in ceramics. The problem is the formation of crack during cooling. To eliminate this problem we applied preand post-heating by microwave source to obtained slower surface cooling rates and thermal stress less than the tensile strength.