Improving high-power properties of PZT ceramics by external DC bias field

Anushka Bansal, Husain N. Shekhani, Maryam Majzoubi, Eberhard Hennig, Timo Scholehwar, Kenji Uchino

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper concludes that the deterioration of the mechanical quality factor Qm when operated under high power, can be recovered by externally applying positive DC bias field. Material constants for piezoelectric ceramics are generally characterized under low-power conditions. However, high-power properties deviate significantly from the ones measured under low-power conditions (Qm degrades by a factor of ~2). DC Bias field helps to recover the properties of the ceramic under high-power conditions. The DC bias field of 200 V/mm exhibits an almost equivalent “opposite” change rate to the vibration velocity of 0.1 m/s. It is also notable that the piezoelectric loss tan θ’ can be decreased most effectively under positive DC bias field (1.9% per 100 V/mm for the hard PZT and 3.1% per 100 V/mm for the soft PZT), in comparison with the elastic or dielectric losses. This report presents a comprehensive analysis on the low- and high-power piezoelectric properties of hard and soft Lead Zirconate Titanates (PZT's) under externally applied DC bias field in the k31 resonance mode (transverse extensional).

Original languageEnglish (US)
Pages (from-to)3044-3053
Number of pages10
JournalJournal of the American Ceramic Society
Volume101
Issue number7
DOIs
StatePublished - Jul 1 2018

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Piezoelectric ceramics
Dielectric losses
ceramics
Deterioration
Lead
vibration

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Geology
  • Geochemistry and Petrology
  • Materials Chemistry

Cite this

Bansal, Anushka ; Shekhani, Husain N. ; Majzoubi, Maryam ; Hennig, Eberhard ; Scholehwar, Timo ; Uchino, Kenji. / Improving high-power properties of PZT ceramics by external DC bias field. In: Journal of the American Ceramic Society. 2018 ; Vol. 101, No. 7. pp. 3044-3053.
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abstract = "This paper concludes that the deterioration of the mechanical quality factor Qm when operated under high power, can be recovered by externally applying positive DC bias field. Material constants for piezoelectric ceramics are generally characterized under low-power conditions. However, high-power properties deviate significantly from the ones measured under low-power conditions (Qm degrades by a factor of ~2). DC Bias field helps to recover the properties of the ceramic under high-power conditions. The DC bias field of 200 V/mm exhibits an almost equivalent “opposite” change rate to the vibration velocity of 0.1 m/s. It is also notable that the piezoelectric loss tan θ’ can be decreased most effectively under positive DC bias field (1.9{\%} per 100 V/mm for the hard PZT and 3.1{\%} per 100 V/mm for the soft PZT), in comparison with the elastic or dielectric losses. This report presents a comprehensive analysis on the low- and high-power piezoelectric properties of hard and soft Lead Zirconate Titanates (PZT's) under externally applied DC bias field in the k31 resonance mode (transverse extensional).",
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Bansal, A, Shekhani, HN, Majzoubi, M, Hennig, E, Scholehwar, T & Uchino, K 2018, 'Improving high-power properties of PZT ceramics by external DC bias field', Journal of the American Ceramic Society, vol. 101, no. 7, pp. 3044-3053. https://doi.org/10.1111/jace.15437

Improving high-power properties of PZT ceramics by external DC bias field. / Bansal, Anushka; Shekhani, Husain N.; Majzoubi, Maryam; Hennig, Eberhard; Scholehwar, Timo; Uchino, Kenji.

In: Journal of the American Ceramic Society, Vol. 101, No. 7, 01.07.2018, p. 3044-3053.

Research output: Contribution to journalArticle

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