Xray diffraction analysis of the yttria stabilized zirconia powder by ...
1. Introduction. At room temperature (RT), zirconia is found in the monoclinic crystal structure (space group P 2 1 / c).Zirconia undergoes a firstorder, displacive martensitic transformation at approximately 1170 °C [1] with a volume change in the unit cell by about 4% [2].After the phase transition, zirconia is stabilized in a tetragonal phase (space group P 4 2 / n m c) at temperatures ...