Thermal expansion of solid solutions based on calcium and barium fluorides

Abstract

The thermal expansion of the Ca0.90Y0.10F2.10, Ca0.97Yb0.03F2.03, Ca0.97Co0.03F2.00, Ba0.70La0.30F2.30, and Ba0.80Nd0.20F2.20 solid solutions has been studied experimentally from below liquid-nitrogen temperature to room temperature. The results demonstrate that both the iso- and heterovalent dopants have a weak effect on the linear thermal expansion coefficient of the fluorite-structure crystals.