Metal–Ceramic Composite Actuators

Yutaka Sugawara; Katsuhiko Onitsuka; Shoko Yoshikawa; Qichang Xu; Robert E. Newnham; Kenji Uchino

doi:10.1111/j.1151-2916.1992.tb04172.x

Metal–Ceramic Composite Actuators

Yutaka Sugawara, Katsuhiko Onitsuka, Shoko Yoshikawa, Qichang Xu, Robert E. Newnham, Kenji Uchino

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

197 Scopus citations

Abstract

A new type of actuator composed of metal (brass) end caps and piezoelectric ceramics has been developed as a displacement transducer. Shallow cavities positioned between the metal caps and the central ceramic disk convert and amplify the radial displacement of the piezoelectric ceramic into a large axial motion of the metal end caps. Large d₃₃ coefficients exceeding 2500 pC/N are obtained with the composite actuators. The behavior of the electrically induced strain with geometric variables, such as the thickness of the metal end caps, and with pressing force and driving frequency has been evaluated. Sizeable strains are obtained with both PZT (piezoelectric lead zirconate titanate) and PMN (electrostrictive lead magnesium niobate) ceramics.

Original language	English (US)
Pages (from-to)	996-998
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	75
Issue number	4
DOIs	https://doi.org/10.1111/j.1151-2916.1992.tb04172.x
State	Published - Apr 1992

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1992.tb04172.x

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title = "Metal–Ceramic Composite Actuators",

abstract = "A new type of actuator composed of metal (brass) end caps and piezoelectric ceramics has been developed as a displacement transducer. Shallow cavities positioned between the metal caps and the central ceramic disk convert and amplify the radial displacement of the piezoelectric ceramic into a large axial motion of the metal end caps. Large d33 coefficients exceeding 2500 pC/N are obtained with the composite actuators. The behavior of the electrically induced strain with geometric variables, such as the thickness of the metal end caps, and with pressing force and driving frequency has been evaluated. Sizeable strains are obtained with both PZT (piezoelectric lead zirconate titanate) and PMN (electrostrictive lead magnesium niobate) ceramics.",

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T1 - Metal–Ceramic Composite Actuators

AU - Sugawara, Yutaka

AU - Onitsuka, Katsuhiko

AU - Yoshikawa, Shoko

AU - Xu, Qichang

AU - Newnham, Robert E.

AU - Uchino, Kenji

PY - 1992/4

Y1 - 1992/4

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AB - A new type of actuator composed of metal (brass) end caps and piezoelectric ceramics has been developed as a displacement transducer. Shallow cavities positioned between the metal caps and the central ceramic disk convert and amplify the radial displacement of the piezoelectric ceramic into a large axial motion of the metal end caps. Large d33 coefficients exceeding 2500 pC/N are obtained with the composite actuators. The behavior of the electrically induced strain with geometric variables, such as the thickness of the metal end caps, and with pressing force and driving frequency has been evaluated. Sizeable strains are obtained with both PZT (piezoelectric lead zirconate titanate) and PMN (electrostrictive lead magnesium niobate) ceramics.

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Metal–Ceramic Composite Actuators

Abstract

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