Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7993669 | Journal of Alloys and Compounds | 2018 | 24 Pages |
Abstract
The present work reports the synthesis of Lead free (Ba1-xCax)(ZryTi1-y)O3 with xâ¯=â¯0.13, yâ¯â¤â¯0.15 (i.e. BCTZ) piezoceramics by semi-wet route and effect of additives viz., Ca2+, and Zr4+ on phase formation, microstructure, piezoelectric and electromechanical properties. Detailed structural analysis suggests the formation of tetragonal perovskite phase with P4mm symmetry, which was also confirmed by Rietveld refinement and Raman spectra. SEM micrographs showed that the average grain size decreased with Zr4+ which acts as grain growth inhibitor. Composition with xâ¯=â¯0.13 and yâ¯=â¯0.10 exhibited the optimum piezoelectric and electromechanical properties (d33â¯=â¯367â¯Â±â¯2â¯pC/N and kpâ¯=â¯.39â¯Â±â¯0.01) and showed higher densification (relative densityâ¯â¼â¯98%).
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Vijayeta Pal, O.P. Thakur, R.K. Dwivedi,