Back to Search
Start Over
Barium modified lead lanthanum strontium zirconium niobium titanate for dielectric and piezoelectric properties
- Source :
-
Journal of the European Ceramic Society . Aug2007, Vol. 27 Issue 10, p3141-3147. 7p. - Publication Year :
- 2007
-
Abstract
- Abstract: The isovalent Ba2+ modified lead lanthanum strontium zirconium niobium titanate (PLSZNT) solid solutions were prepared by solid-state reaction method with the compositional formula [Pb1−x−w−y La x Sr w Ba y ][(Zr z Ti1−z )(1−(x/4)−(5/4)k)Nb k ]O3 where Ba content, y, was varied from 0, 0.5, 1 and 1.5mol%. X-ray diffraction (XRD) studies revealed that all the samples have ferroelectric tetragonal structure (FETET). The presence of multiple ions at Pb-site enhanced grain growth and further addition of Ba concentration resulted in restrained grain growth. Dielectric studies suggested that the ɛ RT increased up to 1mol% Ba while T c has shown a continuous decreasing trend throughout the series. The piezoelectric parameters as a function of grain growth were characterized. The optimum piezoelectric charge coefficient (d 33 =538pC/N) and piezoelectric planar coupling coefficient (k p =0.521) was found to be in 1mol% Ba modified PLSZNT ceramic, respectively, and this composition may be suitable for possible sensor and actuator applications. [Copyright &y& Elsevier]
- Subjects :
- *BARIUM
*LANTHANUM
*ZIRCONIUM
*BASTNAESITE
*TITANIUM group
Subjects
Details
- Language :
- English
- ISSN :
- 09552219
- Volume :
- 27
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Journal of the European Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 24800750
- Full Text :
- https://doi.org/10.1016/j.jeurceramsoc.2007.01.001