| Abstract: | Lattice constants of sodium chlorate and sodium bromate and their mixed crystals were determined over the temperature range from room temperature to 320 °C. The observed lattice constants for the various compositions show strong deviations from those expected from Vegard's rule. The lattice constants at various temperatures were fitted to polynomials of type a = a0 + a1t + a2t2. The linear coefficients of expansion for the Na(ClO3)x · (BrO3)1−x series varies non-linearly with composition showing negative deviations from linearity. |
