Hysteresis measurements of lead-free ferroelectric ceramics BNBK79 (Bi0.5Na0.5) TiO3-(Bi0.5K0.5) TiO3-BaTiO3

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F11%3A%230000340" target="_blank" >RIV/46747885:24510/11:#0000340 - isvavai.cz</a>
Result on the web
<a href="http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5936495" target="_blank" >http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5936495</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/IWECMS.2011.5952379" target="_blank" >10.1109/IWECMS.2011.5952379</a>

Result language
angličtina
Original language name
Hysteresis measurements of lead-free ferroelectric ceramics BNBK79 (Bi0.5Na0.5) TiO3-(Bi0.5K0.5) TiO3-BaTiO3
Original language description
The research deals with nonlinear properties of piezoelectric, ferroelectric and mechanical response of the lead-free type ferroelectric ceramics x(Bi0.5 Na0.5) TiO3 - y(Bi0.5 K0.5) TiO3 - zBaTiO3, where x = 0.79, y = 0.14, and z = 0.07, in short form BNBK79. Small mechanical deformation and polarization measurements are realized using LVDT (Linear Variable Differential Transformer) measuring system. Velocities of ultrasound wave propagation in presence of an external DC electric field are also determined. The orientation of spontaneous polarization can be switched under the action of sufficiently strong electric fields. This causes the nonlinear behaviour of polarization-electric field(D-E), strain-electric field (S-E) and the velocity of ultrasonic waves-electric field (v-E) relationship. Butterfly shape of the responses is observed above the coercive field. The described BNBK79 ceramics is significant candidate for lead-free actuator applications.
Czech name
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Czech description
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Project
<a href="/en/project/GA202%2F07%2F1289" target="_blank" >GA202/07/1289: Electromechanical properties of aadvanced ferroelectrics materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
2011 10th International Workshop on Electronics, Control, Measurement and Signals (ECMS)
ISBN
978-1-61284-396-4
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
1-4
Publisher name
IEEE, 445 Hoest Lane, P.O.Box 1331, Piscataway, NJ 08855-1331 USA
Place of publication
Liberec
Event location
Liberec
Event date
Jan 1, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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