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ROELECTRIC BODYTX@张颖INTRODUCTIONTHEMAJORFUNCTIONALITYOFFEROELECTRICCERAMICSEMPLOYEDINTHEPOSITIONCONTROLISITSABILITYTOSWITCHTHEDIR...“,”The incompatibility of the spontaneous polarization across the interface between two grains may induce internal stress and electric fields in a ferroelectric body. The built up of stresses and electric fields may seriously affect the functioning of ferroelectric materials. In this article, the effects of the incompatibility of the spontaneous polarization for various types of interfaces on the electric fields are discussed. Numerical results indicate that the incompatibility of the spontaneous polarization...