Investigation of Dental ZrO 2 Ceramic Nano-Composite Calcined by Spark Plasma Sintering Technique

For the investigation of dental ZrO2 ceramic nano-composite with spark plasma sintering (SPS) process technique, the ZrO2 nanometer powder stabilized by Y2O3 and the Al2O3 nanometer powder were prepared in our laboratory, and further used for creating the ZrO2 nano-composites. The pure ZrO2 nanometer powder, as well as the mixture of 50 vol % the ZrO2 nanometer powder and 50 vol % the Al2O3 nanometer powder were processed with ball milling, baked, and granulated with an isostatic cool pressing equipment. Calcination was performed with spark plasma sintering (SPS). The properties of as-sintered SPS samples were measured, and the patterns of XRD along with the imagines of SEM were obtained, and compared with previous research work.