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Proceedings Paper

High-authority telescoping actuators with single-crystal piezoelectric materials
Author(s): Carl C.M. Wu; David Lewis; Seung Eek Eagle Park
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Paper Abstract

The displacement output of the telescoping actuators, as developed in the NRL, depend on the material properties. Recently developed relaxor ferroelectric materials, with compositions near the morphotropic phase boundary and in single crystal forms, show high strain output capability and high coupling coefficients. These materials, when design into devices, would provide high performance, in terms of displacement output, and high transduction efficiency. We have utilized one of these single crystal materials, namely, lead zinc niobate-lead titanate, PZN-PT, for the construction of the NRL telescoping actuators. The evaluation of the piezoelectric performance of these single crystal-based telescoping actuators showed much higher displacement outputs than that for the ones previously made with polycrystalline PZT ceramics.

Paper Details

Date Published: 12 June 2000
PDF: 8 pages
Proc. SPIE 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies, (12 June 2000); doi: 10.1117/12.388172
Show Author Affiliations
Carl C.M. Wu, Naval Research Lab. (United States)
David Lewis, Naval Research Lab. (United States)
Seung Eek Eagle Park, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 3991:
Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies
Jack H. Jacobs, Editor(s)

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