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Micro-Constitutive Model Study of PMN-0.32PT Relaxor Ferroelectric Single Crystal
並列摘要
In present paper, stress-strain relationship of ＜001＞ oriented PMN-0.32PT relaxor ferroelectric single crystals has been investigated. Polarization rotation model is developed to explain the observed behaviors of PMN-0.32PT. Stress-strain curve of ferroelectric single crystal BaTiO3 is calculated with the first principle method. Results show that the polarization rotation model is reasonable. Based on the polarization rotation model, a micromechanical constitutive model of PMN-0.32PT is constructed. It is shown that the developed model can faithfully capture the typical characteristic of the observed behavior of ＜001＞ oriented PMN-0.32PT.
延伸閱讀
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