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http://nopr.niscpr.res.in/handle/123456789/24461| Title: | Diffuse phase transition in perovskite ferroelectrics |
| Authors: | Prasad, K |
| Issue Date: | Oct-2000 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A mathematical model to estimate quantitatively the size of microregions with compositional fluctuations that affect the ferro-paraelectric phase transitions is presented. The ferro-paraelectric transition in (Pb1-xCax)[(Co0.5 W0.5)0.04 Ti0.96]O3; x = 0.1 0, 0.20, 0.24, 0.25, 0.30, 0.35 and 0.40 ceramics has been studied by measuring the dielectric permittivity as a function of temperature at different frequency. Experimental results show that with the increase in Ca-content width of the ferroparaelectric transition region broadened while phase transition temperature decreases. Also this theoretical model has been applied on the present ceramic system. |
| Page(s): | 446-450 |
| Appears in Collections: | IJEMS Vol.07(5-6) [October-December 2000] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEMS 7(5-6) 446-450.pdf | 1.03 MB | Adobe PDF | View/Open |
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