NDLI: Design and fabrication of functionally graded PZT/Pt piezoelectric bimorph actuator

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Development of in-house fast X-ray diffraction apparatus and its application to the supercooled liquid Pd40Ni10Cu30P20 alloy

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Preface

Formation of nanocrystalline structure during electron irradiation induced crystallization in amorphous Fe-Zr-B alloys

Microstructural analysis and mechanical properties of in situ Nb/Nb-aluminide layered materials

Microstructures and fracture toughness of directionally solidified Mo-ZrC eutectic composites

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Design and fabrication of functionally graded PZT/Pt piezoelectric bimorph actuator

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Volume: 3 Issue: 1

Volume 2, 2001

Volume 1, 2000

Design and fabrication of functionally graded PZT/Pt piezoelectric bimorph actuator

Content Provider	Taylor & Francis Online
Author	Watanabe, Ryuzo Yokoyama, Shohei Takagi, Kenta Almajid, Abdulhakim Taya, Minoru Li, Jing-Feng
Abstract	A laminated piezoelectric bimorph actuator with a graded compositional distribution of PZT and Pt was fabricated, and its deflection characteristics were evaluated. Using experimentally determined compositional dependency of elastic and piezoelectric properties in the PZT/Pt composites, the modified classical lamination theory and the finite element method were applied to find the optimum compositional profile that will give a larger deflection and smaller stress, simultaneously. The miniature bimorph-type graded actuator that consists of a composite internal-electrode (PZT/30 vol% Pt) and three piezoelectric layers of different compositions (PZT/0–20 vol% Pt) were fabricated by powder stacking and sintering. The deflection of the actuator was measured using electric strain gages mounted on the top and bottom surfaces of the actuator. The deflection was found to strongly depend on the composition distribution profile. Under an applied electric field of 100 V m–1, the actuator with an optimum composition profile exhibited a curvature of up to 0.03 m–1, which is a satisfactory performance for this kind of actuators. The stress generated on actuation was estimated to be as low as 0.4 MPa, which is much smaller than those of conventional directly bonded actuators and will assure a long actuation life.
Starting Page	217
Ending Page	224
Page Count	8
File Format	PDF HTM / HTML
ISSN	14686996 18785514
DOI	10.1016/S1468-6996(02)00017-7
Journal	Science and Technology of Advanced Materials
Volume Number	3
Issue Number	2
Language	English
Publisher	Taylor & Francis
Publisher Date	2002-03-04
Access Restriction	Open
Subject Keyword	Piezoelectric actuator Lead zirconate titanate Platinum Functionally graded material Stress minimization Classical lamination theory Finite element method
Content Type	Text
Resource Type	Article
Subject	Materials Science

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Design and fabrication of functionally graded PZT/Pt piezoelectric bimorph actuator

Fabrication and evaluation of porous piezoelectric ceramics and porosity-graded piezoelectric actuators.

Comparative material study between pzt ceramic and newer crystalline pmn-pt and pzn-pt materials for composite bimorph actuators.

Topology optimization applied to the design of functionally graded piezoelectric bimorph.

Optimum material gradient composition for the functionally graded piezoelectric beams

Layerwise Laminate Analysis of Functionally Graded Piezoelectric Bimorph Beams

Enabling PZT bimorph actuator with passive polysilicon structure

Flapping Wing Technology for Micro Air Vehicles Incorporating a Lead Zirconate Titanate (PZT) Bimorph Actuator

Design and modeling of mems based nano displacement pzt sensing element.

Design and fabrication of functionally graded PZT/Pt piezoelectric bimorph actuator

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Design and fabrication of functionally graded PZT/Pt piezoelectric bimorph actuator

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Comparative material study between pzt ceramic and newer crystalline pmn-pt and pzn-pt materials for composite bimorph actuators.

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