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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216305:26620/20:PU136391

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GA18-20498S" target="_blank" >GA18-20498S: Řízení mikrostruktury a vlastností bezolovnatých piezokeramických materiálů pomocí pokročilých technologií jejich přípravy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Asian Ceramic Societies

ISSN

2187-0764

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

291-297

Kód UT WoS článku

000517828100001

EID výsledku v databázi Scopus

2-s2.0-85081037027