Various ceramic materials have been successfully flash sintered via mostly direct current (DC) and some by alternative (AC). However, a comparison on the effects of different field types overall microstructure atomistic defect distribution in flash-sintered ceramics is still very limited. In this work, rutile TiO2 was chosen as model system to directly compare DC AC fields distribution. present...

Flash sintering is a very promising method with great potential for the ultra-rapid production of objects firing processes mere seconds. However, transition from few millimeters samples to larger scales key issue. In this study, we explore spark plasma approach allowing stable hybrid heating in flash condition and producing near net shape sintered specimens. Two electric current configurations ...