Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
BIJALWAN, V. SOKOLOV, I. TOFEL, P.
Originální název
Poling procedures and piezoelectric response of (Ba0.85Ca0.15Zr0.1T0.9)O-3 ceramics
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
The goal of the current report was to find the optimal poling conditions: poling field, poling time and poling temperature for lead-free (Ba0.85Ca0.15Zr0.1T0.9)O-3 ceramic. It has been noticed that the low poling field (< 2 kV/mm) was insufficient for obtaining ideal poling state (theta = 90 degrees) due to the incomplete switching of domains and thus low piezoelectric properties (d(33) <= 438 pC/N and k(p) <= 49%). However, relevance of higher poling voltage (> 2 kV/mm) may induce electric breakdown and physical defects such as cracks in the sample, which also leads degradation of piezoelectric properties. The optimal poling field, poling time and poling temperature was found to be 2 kV/mm, 10 min and 24 degrees C, i.e., near room temperature, respectively to achieve nearly ideal poling state (theta = 86 degrees) obtained by impedance spectra, and thus enhanced piezoelectric constant d(33) = 505 pC/N and k(p) = 56% at room temperature. The O-T phase transition point was identified at 32.6 degrees C, for which a peak value of d(33(E=0V)) = 622 pm/V was realized.
Klíčová slova
Poling conditions; piezoelectric constant; impedance spectra; lead-free piezoelectric ceramics
Autoři
BIJALWAN, V.; SOKOLOV, I.; TOFEL, P.
Vydáno
23. 12. 2020
Nakladatel
Taylor & Francis
Místo
ABINGDON
ISSN
2187-0764
Periodikum
Journal of Asian Ceramic Societies
Ročník
9
Číslo
1
Stát
Japonsko
Strany od
Strany do
8
Strany počet
URL
https://www.tandfonline.com/doi/full/10.1080/21870764.2020.1860438
Plný text v Digitální knihovně
http://hdl.handle.net/11012/196449
BibTex
@article{BUT167482, author="Vijay {Bijalwan} and Ilya {Sokolov} and Pavel {Tofel}", title="Poling procedures and piezoelectric response of (Ba0.85Ca0.15Zr0.1T0.9)O-3 ceramics", journal="Journal of Asian Ceramic Societies", year="2020", volume="9", number="1", pages="1--8", doi="10.1080/21870764.2020.1860438", issn="2187-0764", url="https://www.tandfonline.com/doi/full/10.1080/21870764.2020.1860438" }