Back to Search
Start Over
Grain size effect on the giant dielectric and nonlinear electrical behaviors of BiNaCuTiO ceramics.
- Source :
-
Applied Physics A: Materials Science & Processing . May2012, Vol. 107 Issue 2, p379-383. 5p. 1 Black and White Photograph, 1 Chart, 4 Graphs. - Publication Year :
- 2012
-
Abstract
- Single phase BiNaCuTiO (BNCTO) ceramics with different grain sizes (1.4-4.3 μm) are prepared by a modified Pechini method to investigate their giant dielectric and nonlinear electrical behaviors. The results show that the giant dielectric and nonlinear electrical behaviors are strongly dependent on grain size. With the increment of grain size, the dielectric constant increases monotonically from 14110 (for 1.4 μm sample) to 36183 (for 4.3 μm sample) at 1 kHz, in accompaniment with the breakdown voltage reducing from 112.5 to 43.2 V/mm and the nonlinear coefficient reducing from 4.9 to 3.4. On the basis of the internal barrier layer capacitor (IBLC) model and the IBLC model of Schottky-type potential barrier, an interpretation of the grain size effect on the giant dielectric and nonlinear electrical behaviors is presented. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09478396
- Volume :
- 107
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Applied Physics A: Materials Science & Processing
- Publication Type :
- Academic Journal
- Accession number :
- 74131323
- Full Text :
- https://doi.org/10.1007/s00339-012-6806-9