The ferroelectric PLZT type ceramics as a material for transducers
Modification of the PZT system by the addition La$^{3+}$ ions has marked beneficial effect on several the basic parameters, such as squerness of the hysteresis loop, decreased coercive filed, increased dielectric constant, maximum coupling coefficients, increased mechanical compliance, and enhanc...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2014-01-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1389 |
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| Summary: | Modification of the PZT system by the addition La$^{3+}$ ions has marked beneficial effect on
several the basic parameters, such as squerness of the hysteresis loop, decreased coercive filed,
increased dielectric constant, maximum coupling coefficients, increased mechanical compliance,
and enhanced optical transparency.
The mechanical and electrical properties in lanthanum modified lead zirconate-titanate ceramics
of 5/50/50 and 10/50/50 were studied by electric permittivity $\epsilon$ and dielectric losses
tan $\delta$ measurements. The temperature dependences of $\varepsilon = f(T)$ and tan $\delta = f(T)$ were
determinate in temperature range from 300 K to 730 K. The values of $T_C$ obtained during $\varepsilon$
and tan $\delta$ measurements were respectively: 560 K for 5/50/50 and 419 K for 10/50/50. |
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| ISSN: | 0137-5075 2300-262X |