Open AccessAnalysis on the anisotropic electromechanical properties of lead magnoniobate titanate single crystal for ring type ultrasonic motors
Author(s) -
Xiang Shi,
Wenbin Huang,
Fei Li,
Zhenrong Li,
Zhuo Xu,
Xiaoning Jiang,
Xiaoyong Wei
Publication year - 2016
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4967823
Subject(s) - materials science , ultrasonic motor , piezoelectricity , anisotropy , crystal (programming language) , orientation (vector space) , single crystal , stator , ultrasonic sensor , ring (chemistry) , condensed matter physics , crystallography , optics , acoustics , composite material , geometry , physics , chemistry , mathematics , organic chemistry , quantum mechanics , computer science , programming language
This work discussed the optimized cut of single crystal lead magnoniobate titanate (PMNT) for use of ring type travelling wave ultrasonic motors (USMs), according to anisotropic analysis on electromechanical properties. The selection criterion of crystal orientation relies on the circular uniformity of the induced travelling wave amplitude on the stator surface. By calculating the equivalent elastic coefficient c11 and lateral piezoelectric constant d31, the optimal crystal orientations were proposed for PMNT single crystals poled along different directions. For single crystal poled along <001>c directions, the optimal orientation lies along [001]c with d31=-1335pC/N and k31=0.87. The crystallographic orientation [025]c is the optimized orientation for single crystals poled along <011>c direction with d31=199pC/N and k31=0.55. The optimal orientation of 1R configuration is [332¯]c with a large enhancement of d31 = 1201 and k31=0.92
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