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Temperature insensitive piezoelectric properties on the morphotropic phase boundary of BaZrO3-modified lead-free KNN-BLT ceramics.
- Source :
- Journal of Electroceramics; Dec2020, Vol. 45 Issue 4, p164-171, 8p
- Publication Year :
- 2020
-
Abstract
- The formation of a morphotropic phase boundary (MPB) in piezoelectric ceramics is one of the most important techniques to enhance their dielectric and piezoelectric properties. In this work, a rhombohedral (R) and tetragonal (T) phase boundary has been designed and clarified using the lead‒free 0.92(Na<subscript>0.5</subscript>K<subscript>0.5</subscript>)NbO<subscript>3</subscript>–(0.08–x)(Bi<subscript>0.5</subscript>Li<subscript>0.5</subscript>)TiO<subscript>3</subscript>–xBaZrO<subscript>3</subscript> ternary system. The R-T phase coexistence region is identified in the ceramics with 0.06 ≤ x ≤ 0.07. We successfully demonstrated that the crystal's relatively enhanced d<subscript>33</subscript> and its excellent temperature stability are originated from phase transition behaviors that were confirmed by the temperature‒dependent dielectric properties and X−ray diffraction (XRD) patterns. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13853449
- Volume :
- 45
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Journal of Electroceramics
- Publication Type :
- Academic Journal
- Accession number :
- 152297098
- Full Text :
- https://doi.org/10.1007/s10832-021-00236-9