effect of current density, temperature, and contact paste on flash sintered 8ysz

Flash sintering has been investigated as a modern sintering method through examining the effect of processing parameters such as current density, temperature, and contact paste on the flash sintered 8ysz characteristic. 95% of theoretical density was achieved at 800°с in 30sec with a field intensity of 100v.cm-1 and a current density of 160ma.mm-2. such relative density in conventional sintering achieved at 1450°с for 4 hours. results indicated that the temperature and flash current density have positive effects on the relative density. contact paste had a significant effect on the relative density. 8ysz samples with lsm contact paste had a higher relative density in comparison with those flash sintered with pt contact paste. the positive effect of lsm contact paste was more significant, especially at lower current density.