The compounds Bi2MoO6 (m = 1), Bi3NbTiO9 (m = 2), Bi4Ti3O12 (m = 3), BaBi4Ti4O15 (m = 4), and Ba2Bi4Ti5O18 (m = 5) (Aurivillius phases with the general formula A m − 1Bi2B m O3m + 3) have been synthesized by solid-state reactions. Using differential scanning calorimetry and high-temperature X-ray diffraction, we have studied their phase transitions and determined their thermal expansion coefficients.
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Knyazev et al. (2014) studied this question.
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