Phase diagram of the Bi2O3–Cr2O3 system

Phase diagram of the pseudo-binary system Bi2O3–Cr2O3 has been reconstructed based upon X-ray diffraction measurement and differential thermal analysis. Four intermediate phases have been determined in this system: Bi14CrO24-based solid solution (β1, space group I4/m), Bi10Cr2O21-based high-temperature solid solution (β2, orthorhombic symmetry), a new compound Bi2CrO6 (X, monoclinic symmetry) and the stoichiometric compound Bi6Cr2O15 (η phase, orthorhombic symmetry, space group Ccc2).