  The microwave sintering homogeneity of large and complex shape specimens is
analyzed. A new approach enabling the fabrication of complex shapes ceramics
via 3D printing and microwave sintering is presented. The use of a dental
microwave cavity is shown to enable a substantial level of densification of
complex shape components while restricting the grain growth. The homogeneity of
the processed samples during microwave sintering is studied by an
electromagnetic-thermal-mechanical simulation. The realistic densification
behavior, that phenomenologically takes into account the microwave effect, is
included in the modeling framework. The simulation indicates the sharp
correlation between the microwave field distribution in the cavity, the
temperature profile, and the specimen's shape distortion.
