Influence of domain orientation on the mechanical properties of lead zirconate titanate piezoelectric ceramics |
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| Authors: | Mitsuhiro Okayasu Kazuto Sato Mamoru Mizuno |
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| Affiliation: | 1. School of Basic Science, Indian Institute of Technology, Bhubaneswar, Odisha 769008, India;2. Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India;1. Department of Physics & Astrophysics, University of Delhi, Delhi 110007, India;2. Defence Metallurgical Research Laboratory (DMRL), Kanchanbagh, Hyderabad 500079, India;3. Department of Physics, Keshav Mahavidyalaya, University of Delhi, Delhi 110034, India |
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| Abstract: | The influence of domain orientation on the mechanical properties of lead zirconate titanate (PZT) piezoelectric ceramics has been investigated using un-poled and poled PZT ceramics. High mechanical properties, e.g., high elastic modulus and compressive strength, were obtained for the polarized PZT ceramics due to strain hardening caused by more severe domain switching during the loading process, while low mechanical properties for the un-poled ceramics. Fracture mechanics of the ceramics were influenced by the direction of the tetragonal lattice structure since cracks propagate along the long axis of the tetragonal structure (c-axis). Using X-ray diffraction and electron back scatter diffraction analysis, the domain switching characteristics could be clarified. |
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