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PMN-PT piezoelectric-electrostrictive bi-layer composite actuators
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
PMN-PT piezoelectric-electrostrictive bi-layer composite actuators
Identifier
ETD_2484
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000053123
Language
LanguageTerm
(authority = ISO639-2);
(type = code)
eng
Genre
(authority = marcgt)
theses
Subject
(ID = SBJ-1);
(authority = RUETD)
Topic
Materials Science and Engineering
Subject
(ID = SBJ-2);
(authority = ETD-LCSH)
Topic
Piezoelectric devices
Subject
(ID = SBJ-3);
(authority = ETD-LCSH)
Topic
Actuators
Abstract
(type = abstract)
In the past few decades, significant advances have been achieved to replace the conventional actuators, including hydraulic, shape memory alloy, electromagnetic and linear induction, with piezoelectric actuators since they are light weight and small in size, have precision positioning capabilities, offer a wide range of generative force, consume less power, and provide higher durability and reliability. The strain produced by bulk polycrystalline piezoelectric ceramics and single crystals are typically in the range of 0.1 to 1 %, respectively, which is still low for many applications. Therefore, various strain amplification designs including multilayer, bimorph, unimorph, flextensional actuators (Moonie and cymbal), co-fired and functionally graded ceramics have been proposed to enhance the displacement. In this investigation, Piezoelectric/Electrostrictive Bi-Layer Monolithic Composites (PE-MBLC) were fabricated by co-pressing and co-sintering of the piezoelectric (PMN-PT 65/35: P) and electrostrictive (PMN/PT 90/10: E) powders. Flat and dome shaped of PE-MBLCs were obtained by optimizing processing conditions such as pressing pressure and sintering temperature. In addition, poling conditions of bilayer composite actuators were thoroughly studied to maximize their electromechanical properties. It was found that composites had lower d33eff and Keff values than the calculated values. This was attributed to a significant difference between relative permittivities of P and E materials as well as the presence of induced stresses in both P and E layers after sintering that hindered domain switching within piezoelectric layer during poling. The shape change (planar to dome), electromechanical properties, and actuation performance of PE-MBLC actuators were examined as a function of volume percent of piezoelectric phase. The highest displacement ~15 m was obtained from PE-MBLC actuator with 50 volume % piezoelectric phase due to the transverse strain response of piezoelectric and electrostrictive layers, the geometry of the composites, and the domain reorientation. Two designs of the flextensional actuators were also fabricated. In the first design, two truncated thin metal caps were attached to a flat PE-MBLC. In the second design, dome-shaped PE-MBLC actuators with various volume fraction of piezoelectric phase were attached to a flat metallic plate. The actuation evaluation showed that ~ 21 to 70 m displacement could be achieved by such designs.
PhysicalDescription
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electronic resource
Extent
xv, 181 p. : ill.
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application/pdf
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text/xml
Note
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Ph.D.
Note
Includes abstract
Note
Vita
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Piyalak Ngernchuklin
Name
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Ngernchuklin
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Piyalak
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1974-
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author
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Piyalak Ngernchuklin
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Safari
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Ahmad
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chair
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Advisory Committee
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Ahmad Safari
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NamePart
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Danforth
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S.C.
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internal member
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Advisory Committee
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S.C. Danforth
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(type = family)
Klein
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L.C.
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internal member
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Advisory Committee
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L.C. Klein
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Jadidian
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B.
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outside member
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Advisory Committee
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B. Jadidian
Name
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NamePart
Rutgers University
Role
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degree grantor
Name
(ID = NAME-2);
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NamePart
Graduate School - New Brunswick
Role
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(authority = RULIB)
school
OriginInfo
DateCreated
(qualifier = exact)
2010
DateOther
(qualifier = exact);
(type = degree)
2010
Place
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(type = code)
xx
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
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(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
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rucore19991600001
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NjNbRU
Identifier
(type = doi)
doi:10.7282/T3NC619H
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
RightsDeclaration
(AUTHORITY = GS);
(ID = rulibRdec0006)
The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsHolder
(ID = PRH-1);
(type = personal)
Name
FamilyName
Ngernchuklin
GivenName
Piyalak
Role
Copyright Holder
RightsEvent
(ID = RE-1);
(AUTHORITY = rulib)
Type
Permission or license
DateTime
2010-03-02 14:06:11
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Copyright holder
Name
Piyalak Ngernchuklin
Affiliation
Rutgers University. Graduate School - New Brunswick
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Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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Technical
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ETD
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application/pdf
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application/x-tar
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3522560
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