Derivation of losses from impedance spectrum for contour modes of ceramic resonator

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F20%3A00008434" target="_blank" >RIV/46747885:24510/20:00008434 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/20:PU136391
Result on the web
<a href="https://www.tandfonline.com/doi/full/10.1080/21870764.2020.1732007" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/21870764.2020.1732007</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/21870764.2020.1732007" target="_blank" >10.1080/21870764.2020.1732007</a>

Result language
angličtina
Original language name
Derivation of losses from impedance spectrum for contour modes of ceramic resonator
Original language description
Method of loss coefficients calculation from mechanical quality factors of transversal vibration modes is presented. Theoretical formulae are derived for the contour mode of thin square plate and width extensional mode of a thin rectangular plate. Mechanical quality factors are expressed as a function of loss coefficients for ceramic with known Poisson’s ratio. Measured impedance spectra are compared with calculations and used for the characterization of losses on lead-free BCZT and lead-based PZT piezoelectric ceramics. Full set of loss coefficients active for planar vibration modes is characterized on a single sample. Mechanical quality factor at resonance is the same for the contour extensional mode of a thin square plate and for the width extensional mode of a thin rectangular plate. Loss coefficients reach the biggest values for the piezoelectric losses, followed by the dielectric and elastic losses. Our results show that the BCZT ceramics have losses of the same magnitude as soft PZT ceramic.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20504 - Ceramics

Project
<a href="/en/project/GA18-20498S" target="_blank" >GA18-20498S: Control of microstructure and properties of lead-free piezoceramic materials through advanced ceramic processing</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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