压电材料中缺陷偶极子特性的研究进展

杜刚, 梁瑞虹, 李涛, 卢晓蓉, 王根水, 董显林

Recent Progress on Defect Dipoles Characteristics in Piezoelectric Materials

DU Gang, LIANG Rui-Hong, LI Tao, LU Xiao-Rong, WANG Gen-Shui, DONG Xian-Lin

图7 电致形状记忆效应机理示意图: a老化后的多畴四方铁电相, b施加电场后的单畴结构, c可逆畴变产生的双电滞回线, d大的可回复电致应变 [ 37 ]
Fig. 7 Mechanism of large electro-shape-memory by reversible domain switching in aged ferroelectrics a multidomain tetragonal ferroelectrics after aging b single-domain state by electric field E c double hysteresis loop P - E curve during reversible domain switching d huge electrostrain #cod#x003b5; - E curve during reversible domain switching [ 37 ]