| Autor: |
Satoshi Wada, Rahul C. Kambale, S. G. Kakade, S. P. Kharat, Bharat G. Baraskar, Y.D. Kolekar |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
2015 2nd International Symposium on Physics and Technology of Sensors (ISPTS). |
| DOI: |
10.1109/ispts.2015.7220071 |
| Popis: |
The ferroelectric and piezoelectric properties of Sn4+ modified (Ba 0.7 Ca 0.3 )(Ti 1−x Sn x )O 3 , (with x = 0.000 to 0.100 in steps of 0.025) lead free electroceramics were investigated. With Sn4+ substitution, a structural phase transition from pure tetragonal to pseudo-cubic structure has been observed; which strongly influence the ferroelectric/ piezoelectric nature of the samples. At room temperature, all the samples exhibit typical polarization-electric field hysteresis as well as field induced strain butterfly loop which confirms the ferroelectric and piezoelectric nature. As Sn4+ content increases, the ferroelectric properties seems to be suppressed while the piezoelectric properties gets improved up to x = 0.075 and then decreased. Moderately high remanent polarization (P r ) and low coercive field (E c ) were observed for all compositions, which may be essential for storage and switching applications. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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