Effect of SiO2, Al2O3, and Clay Additions on the Sintering Characteristics of Zircon
Effect The effect of sintering additives (SiO2, Al2O3, Clay) on the mechanical characteristics of sintered zircon was investigated. 1 vol% of additives in zircon powder was was sintered at 120~1500˚C, the mechanical characteristics were measured, and microstructure analysis were was conducted. Al2O3 and clay additions increase the formation of monoclinic and tetragonal-ZrO2 formation. An addition of SiO2 addition suppressed the formation of tetragonal-ZrO2 formation., The A specimen sintered at 1400˚C showed the a density of 4.05 g/cm3 and the a microhardness of 1120 HV, respectively.