Direct Electric-Field Induced Phase Transformation in Paraelectric Zirconia via Electrical Susceptibility Mismatch
نویسندگان
چکیده
Electric field driven phase transformations require two phases with a mismatch in their electric polarization, as seen antiferroelectric-to-ferroelectric transformations, where the ferroelectric has permanent polarization that is favored under field. Many other nonferroelectric dielectric materials can become electrically polarized according to electrical susceptibility, yet such induced polarizations are not generally considered capable of enabling transformation. Here we explore susceptibility-mismatch transformation paraelectric ceramic, yttria-doped zirconia. Using situ x-ray diffraction at $550\text{ }\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}$ show monoclinic-to-tetragonal be directly by an field, providing experimental evidence paraelectric-to-paraelectric Considering $\ensuremath{\sim}1%$ mechanical strain this transformation, resulting electromechanical coupling may have potential for solid-state actuators.
منابع مشابه
On the Mechanics of Stress-induced Phase Transformation in Zirconia
SOME CONWJWENCX~ of a simple theoretical model for the stress-induced, isothermal phase transformation of an isolated tetragnnal zirconia crystal are studied. The transformation to a monoclinic state is viewed as mechanical buckling from one homogeneous geometrical configuration to another. The model is used to predict the manner in which an applied shear stress should interact with hydrostatic...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2021
ISSN: ['1079-7114', '0031-9007', '1092-0145']
DOI: https://doi.org/10.1103/physrevlett.126.015701