Effect of Sintering
on Phase Transformation Behavior and Morphology of Calcinated 5 Wt% Mg-PSZ
Yusuf Dedek, Septawendar Rifki and Noviyanti Atiek Rostika
Res. J. Chem. Environ; Vol. 26(7); 1-5;
doi: https://doi.org/10.25303/2607rjce01005; (2022)
Abstract
The zirconia structure can undergo a transformation during cooling after the sintering.
The zirconia phase is stabilized by adding a doped magnesia stabilizer to the zirconia
matrix. This study observed the effect of calcination temperature on the synthesis
of Mg-PSZ on its phase transformation. The synthesis process was carried out with
various calcinated temperatures of 600, 800 and 1000°C, with a concentration of
MgO 5 wt%. Based on XRD analysis, Mg-PSZ crystal size was in the nanometer scale.
The Mg-PSZ phases with 5% MgO at calcinated temperatures of 600, 800 and 1000°C
were cubic, tetragonal and monoclinic respectively with each space group being Fm3m,
P42/nmc and P21/c.
In addition to the phase transition, the calcination temperature also affected the
crystallinity of Mg-PSZ; the higher is calcination temperature, the lower is crystallinity.
Based on TEM analysis at a calcination temperature of 800°C, the Mg-PSZ microstructure
showed predominantly spherical nanoparticles.
