Jiang Wenhua, Zhang Rui, Jiang Bei, Cao Wenwu
Materials Research Institute, The Pennsylvania State University, 164 Materials Research Laboratory, University Park, PA 16802-4800, USA.
Ultrasonics. 2003 Mar;41(2):55-63. doi: 10.1016/s0041-624x(02)00436-5.
The relaxor based ferroelectric (1-x)Pb(Zn(1/3)Nb(2/3))O(3)-xPbTiO(3) and (1-x)Pb(Mg(1/3)Nb(2/3))O(3)-xPbTiO(3) single crystals provided new challenges in property characterization because their extraordinarily large piezoelectric coefficients and electromechanical coupling coefficients. Large errors may occur in some of the derived material constants using conventional characterization techniques. This paper will analyze the inadequacy of the traditional characterization methods and provide some basic guidelines for properly characterizing piezoelectric materials with extremely high piezoelectric and electromechanical coupling coefficients.
基于弛豫铁电体的（1-x）Pb（Zn（1/3）Nb（2/3））O（3）-xPbTiO（3）和（1-x）Pb（Mg（1/3）Nb（2/3））O（3）-xPbTiO（3）单晶在性能表征方面带来了新的挑战，因为它们具有极高的压电系数和机电耦合系数。使用传统表征技术推导某些材料常数时可能会出现较大误差。本文将分析传统表征方法的不足之处，并为正确表征具有极高压电和机电耦合系数的压电材料提供一些基本指导原则。
