Effects of stress on material properties, intrinsic and extrinsic behavior, and electromechanical response of stress-biased actuators

Author

Nisanart Navapan

Keywords and Phrases

Stress-biased actuators

Abstract

"New actuator applications demand high displacement and load bearing capacity that can be fulfilled by stress-biased actuators, including Thunder™ (THin UNimorph Driver and sEnsoR). Thunder™ is a composite laminate actuator based on an elastic metal layer and a piezoelectric wafer bonded together with a thermoplastic material (LaRC-SI). On cooling from the processing temperature, the difference in thermal expansion between layers creates a unique dome structure with high internal stress. Thunder™ actuators were studied to provide insight into the fundamental effects of stress on the electromechanical behavior of these devices...This investigation resulted in a greater understanding of the general behavior of ferroelectric materials under the unique mechanical boundary conditions associated with these devices, and the balance between intrinsic and extrinsic contributions to the overall electromechanical response of the device"--Abstract, page iii.

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Ceramic Engineering

Publisher

University of Missouri--Rolla

Publication Date

Summer 2004

Pagination

xviii, 240 pages

Note about bibliography

Includes bibliographical references (pages 229-239).

Rights

© 2004 Nisanart Navapan, All rights reserved.

Document Type

Dissertation - Citation

File Type

text

Language

English

Subject Headings

ActuatorsPiezoelectric ceramics

Thesis Number

T 8559

Print OCLC #

62124357

Recommended Citation

Navapan, Nisanart, "Effects of stress on material properties, intrinsic and extrinsic behavior, and electromechanical response of stress-biased actuators" (2004). Doctoral Dissertations. 1570.
https://scholarsmine.mst.edu/doctoral_dissertations/1570