Structural, optical, and thermodynamic properties of an LiCa2Mg2As3xV3−3xO12 solid‐solution garnet

Abstract

AbstractA series of LiCa2Mg2As3xV3−3xO12 garnet powders (x = 0, 0.25, 0.50, 0.667, 0.75, and 1) were synthesized using solid‐state reaction from mixed precursor powders. A complete solid‐solution series was found between the endmembers. Energy‐dispersive spectroscopy confirmed the homogeneity of the synthesized garnets. The compositions reversibly melted between 1000 and 1160°C and had low sintering temperatures between 650 and 900°C. Thermal diffusivity, heat capacity, thermal conductivity, density, lattice parameter, thermal expansion, index of refraction, and dispersion were measured from room temperature to 800°C.