Analytical Study on the Saturated Polarization Under Electric Field and Phase Equilibrium of Three-Phase Polycrystalline Ferroelectrics by Using the Generalized Inverse-Pole-Figure Model
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By using the generalized inverse-pole-figure model, the numbers of crystalline particles involved in different domain-switching near the triple tetragonal–rhombohedral–orthorhombic (T–R–O) points of three-phase polycrystalline ferroelectrics have been analytically calculated and domain-switching which can bring out phase transformations has been considered. Through polarization by an electric field, different numbers of crystalline particles can be involved in different phase transformations. According to the phase equilibrium conditions, the phase equilibrium compositions of the three phases coexisting near the T–R–O triple point have been evaluated from the results of the numbers of crystalline particles involved in different phase transformations.
KeywordsPolycrystalline ferroelectrics inverse-pole-figure model phase transformation domain-switching phase equilibrium composition morphotropic phase boundary
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