Abstract
The large E- field induced strains and electromechanical coupling in PMN-based relaxors have been utilized in actuator and transducer applications. The effect of La3+ modifications on the field-dependent dielectric and piezoelectric properties was investigated for several (1-x)PMN-(x)PT compositions with transition regions near room temperature. The effect of La3+ modifications, increasing the width of the micro-macro polar transition range (ΔT), defined as the difference between the temperature of maximum permittivity (Tmax) and the depolarization temperature(Td), results in a broader temperature range for obtaining large induced electromechanical coupling factors with negligible hysteresis.
Original language | English (US) |
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Pages | 158-161 |
Number of pages | 4 |
State | Published - 1994 |
Event | Proceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics - University Park, PA, USA Duration: Aug 7 1994 → Aug 10 1994 |
Other
Other | Proceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics |
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City | University Park, PA, USA |
Period | 8/7/94 → 8/10/94 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering