Detail publikačního výsledku

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

ERHART, J.; BIJALWAN, V.; SOLAŘ, F.; MACA, K.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Losses; mechanical quality factor; piezoelectric ceramic; PZT; BCZT

Klíčová slova v angličtině

Losses; mechanical quality factor; piezoelectric ceramic; PZT; BCZT

Autoři

ERHART, J.; BIJALWAN, V.; SOLAŘ, F.; MACA, K.

Rok RIV

2021

Vydáno

02.04.2020

Nakladatel

Taylor & Francis

Místo

ABINGDON

ISSN

2187-0764

Periodikum

Journal of Asian Ceramic Societies

Svazek

8

Číslo

2

Stát

Japonsko

Strany od

291

Strany do

297

Strany počet

7

URL

https://www.tandfonline.com/doi/pdf/10.1080/21870764.2020.1732007

Plný text v Digitální knihovně

http://hdl.handle.net/11012/194861

BibTex

@article{BUT163799,
  author="Jiří {Erhart} and Vijay {Bijalwan} and Filip {Solař} and Karel {Maca}",
  title="Derivation of losses from impedance spectrum for contour modes of ceramic resonator",
  journal="Journal of Asian Ceramic Societies",
  year="2020",
  volume="8",
  number="2",
  pages="291--297",
  doi="10.1080/21870764.2020.1732007",
  issn="2187-0764",
  url="https://www.tandfonline.com/doi/pdf/10.1080/21870764.2020.1732007"
}

Dokumenty

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