Fabrication of YAG Transparent Ceramics using Slip Casting with Ethanol

High-quality YAG transparent ceramics were fabricated by vacuum sintering technique using the slip casting with anhydrous ethanol as the dispersion medium.The in-line transmittances of the polished sample with the thickness of 3 mm are about 79% in the visible band and 80% in the infra-red band,respectively,which are close to the theoretical transmittance of 84%.The average grain size of the sample sintered at 1800℃ is about 30 μm.There are few pores and no impurities or secondary phases at inner grains or grain boundaries.It can be expected that the anhydrous ethanol slip casting method is a very promising way for the transparent ceramic forming.