Alumina assisted grain refinement and physical performance enhancement of yttria transparent ceramics by two-step sintering

作者:Zhang, Le; Ben, Yue; Wu, Jiadong; Yang, Hao; Wong, Chingping; Zhang, Qitu; Chen, Hao*
来源:Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2017, 684: 466-469.
DOI:10.1016/j.msea.2016.12.093

摘要

Submicrometer grain-sized (1.5 gm) yttria ceramics exhibited the remarkable flexural strength enhancement from 28.5 to 165.0 MPa, and equivalent or superior transparency (81.8%, 1064 nm) to that of single crystal under the two-step sintering of 1550-1500 degrees C and Al2O3 additive amount of only 150 ppm.