Experimental study of the properties of ZrO2-Y2O3 and HfO2-Y2O3 solid solutions

Abstract
The Mandel'shtam‐Brillouin spectra of single crystals of ZrO2–Y2O3 and HfO2Y2O3 solid solutions have been measured and the results explained qualitatively. Using the methods of Mandel'shtam‐Brillouin spectra and ultrasound propagation the elastic and photoelastic constants of single crystals of ZrO2Y2O3 and HfO2Y2O3 solid solutions have been found and their dependence on the composition obtained. The elastic and photoelastic properties of single crystals of these solid solutions are discussed.