Abstract
The approach based on an order-disorder transition model combined with the coulomb electrostatic interaction method allows investigating of the order-disorder phase transition in A(B′B′)O3 complex perovskite type ceramics. An analytical analysis is given on how the second nearest neighbour interactions are connected to the quantities characterising the phase transition. While, the criterion proposed by Zhang et al. (Zhang, X.W., Wang, Q. and Gu, B.L. (<citeref rid="bib18">1991</citeref>). Study of the order-disorder transition in A(B′B′)O3 perovskite type ceramics. J Am Ceram Soc., 74(11), 2846-2850.) in order to predict the phase transition and the behaviour of the curve which describes the quantity ˜′ F ′0 T corresponding to order parameter in function of the ionic radius variation and ionic radius ratio are discussed.
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