A relaxor ferroelectric single crystal cut resulting in large d 312 and zero d 311 for a shear mode accelerometer and related applications

S. Goljahi; J. Gallagher; S. J. Zhang; J. Luo; R. Sahul; W. Hackenberger; C. S. Lynch

doi:10.1088/0964-1726/21/5/055005

A relaxor ferroelectric single crystal cut resulting in large d ₃₁₂ and zero d ₃₁₁ for a shear mode accelerometer and related applications

S. Goljahi
, J. Gallagher
, S. J. Zhang
, J. Luo
, R. Sahul
, W. Hackenberger
, C. S. Lynch

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

9 Citations (Scopus)

Abstract

Relaxor ferroelectric single crystals exhibit anisotropic piezoelectric behavior. This enables the use of a combination of crystal cut and poling to obtain piezoelectric properties optimized for certain applications. This work describes a crystal cut that is optimized for applications where a strong face shear mode d ₃₁₂ coupling is desired with a zero d ₃₁₁ or zero d ₃₂₂ piezoelectric coefficient. Such a crystal cut enables the production of stack actuators in a long bar shape with the electric field perpendicular to the bar length. These bars can be cantilevered with a mass at the end to produce a highly sensitive shear mode accelerometer. The zero value of d ₃₁₁ or d ₃₂₂ eliminates a possible extensional mode coupling along the length of the bar. Only one of d ₃₁₁ or d ₃₂₂ can be made equal to zero, the other having a negative value. © 2012 IOP Publishing Ltd.

Original language	English
Article number	055005
Journal	Smart Materials and Structures
Volume	21
Issue number	5
DOIs	https://doi.org/10.1088/0964-1726/21/5/055005
Publication status	Published - May 2012
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by the National Science Foundation under grant CMMI0802658.

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title = "A relaxor ferroelectric single crystal cut resulting in large d 312 and zero d 311 for a shear mode accelerometer and related applications",

abstract = "Relaxor ferroelectric single crystals exhibit anisotropic piezoelectric behavior. This enables the use of a combination of crystal cut and poling to obtain piezoelectric properties optimized for certain applications. This work describes a crystal cut that is optimized for applications where a strong face shear mode d 312 coupling is desired with a zero d 311 or zero d 322 piezoelectric coefficient. Such a crystal cut enables the production of stack actuators in a long bar shape with the electric field perpendicular to the bar length. These bars can be cantilevered with a mass at the end to produce a highly sensitive shear mode accelerometer. The zero value of d 311 or d 322 eliminates a possible extensional mode coupling along the length of the bar. Only one of d 311 or d 322 can be made equal to zero, the other having a negative value. {\textcopyright} 2012 IOP Publishing Ltd.",

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AU - Goljahi, S.

AU - Gallagher, J.

AU - Zhang, S. J.

AU - Luo, J.

AU - Sahul, R.

AU - Hackenberger, W.

AU - Lynch, C. S.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - Relaxor ferroelectric single crystals exhibit anisotropic piezoelectric behavior. This enables the use of a combination of crystal cut and poling to obtain piezoelectric properties optimized for certain applications. This work describes a crystal cut that is optimized for applications where a strong face shear mode d 312 coupling is desired with a zero d 311 or zero d 322 piezoelectric coefficient. Such a crystal cut enables the production of stack actuators in a long bar shape with the electric field perpendicular to the bar length. These bars can be cantilevered with a mass at the end to produce a highly sensitive shear mode accelerometer. The zero value of d 311 or d 322 eliminates a possible extensional mode coupling along the length of the bar. Only one of d 311 or d 322 can be made equal to zero, the other having a negative value. © 2012 IOP Publishing Ltd.

AB - Relaxor ferroelectric single crystals exhibit anisotropic piezoelectric behavior. This enables the use of a combination of crystal cut and poling to obtain piezoelectric properties optimized for certain applications. This work describes a crystal cut that is optimized for applications where a strong face shear mode d 312 coupling is desired with a zero d 311 or zero d 322 piezoelectric coefficient. Such a crystal cut enables the production of stack actuators in a long bar shape with the electric field perpendicular to the bar length. These bars can be cantilevered with a mass at the end to produce a highly sensitive shear mode accelerometer. The zero value of d 311 or d 322 eliminates a possible extensional mode coupling along the length of the bar. Only one of d 311 or d 322 can be made equal to zero, the other having a negative value. © 2012 IOP Publishing Ltd.

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DO - 10.1088/0964-1726/21/5/055005

M3 - RGC 21 - Publication in refereed journal

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JO - Smart Materials and Structures

JF - Smart Materials and Structures

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