Fabrication of transparent LaYZr2O7 ceramic by reactive hot-pressing sintering from commercial raw powders

摘要

A transparent LaYZr2O7 ceramic sample was successfully prepared by reactive hot-pressing sintering using commercially available La2O3, Y2O3, and ZrO2 powders as raw materials. By applying mechanical pressure, the sample was successfully sintered at 1700 degrees C, which is lower by 100-200 degrees C compared to the temperature of used in pressureless sintering, leading to a fine average grain size (i.e., 1.5 mu m). The in-line transmittance reached 50.8% at 500 nm and 70.4% at 1100 nm (1 mm thick). (C) 2016 Elsevier B.V. All rights reserved.