Optical Properties of Transparent MgO-Doped Alumina Fabricated by Spark Plasma Sintering
The microstructure and optical properties are investigated for MgO-doped alumina fabricated by spark plasma sintering at temperatures between 1100 and 1550 °C. The MgO doping renders the microstructure less sensitive to the sintering temperature by suppressing grain growth, whereas it has no significant effect on the densification of alumina and resultantly no effect in enhancing the total forward transmission. The value of the total forward transmission can be used as an indirect measure of the slight change in density.
Jian-Feng Nie and Allan Morton
B. N. Kim et al., "Optical Properties of Transparent MgO-Doped Alumina Fabricated by Spark Plasma Sintering", Materials Science Forum, Vols. 654-656, pp. 2041-2044, 2010