Phase composition and local structure of scandia and yttria stabilized zirconia solid solution

Abstract The local crystalline structure of scandia stabilized zirconia has been studied and compared with the structure of yttria stabilized zirconia for the same stabilizing oxide concentration range (8–10 mol.%). The single crystal materials have been grown by directional melt crystallization. Changes in the local crystalline structure and phase transformations in the crystals have been studied after heat treatment at 1000 °C for 400 h in air. Optical spectroscopy has shown changes in the local neighborhood as a result of heat treatment induced phase transformations in the solid solutions.