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Shear alignment of particles during spin coating
Descriptive
TypeOfResource
Text
TitleInfo
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Title
Shear alignment of particles during spin coating
Identifier
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.16097
Identifier
ETD_262
Language
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eng
Genre
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theses
Subject
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Topic
Ceramic and Materials Science and Engineering
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Shear flow
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Fluid dynamics
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Coating processes
Abstract
Spin coating is a process for applying uniform coatings to a wide variety of substrates. The final film thickness depends on viscosity, drying rate, percentage of solids, and surface tension and many of these influencing factors have been investigated. Our recent research has been focused on alignment of anisotropic particles being deposited by spin coating. One key aspect of spin coating is the shear forces that are experienced by the fluid before solvent evaporation takes over and freezes in a final particle arrangement. We have calculated the shear experienced by the particles during all stages of the process and tracked the fluid flow to determine the individual particle trajectories. A small fraction of fluid that starts near the center of the wafer contributes to the final coating while the majority of the fluid is flung off. From our calculations and associated measurements, it is evident that the particles away from the center of the wafer are more aligned toward the flow direction due to the higher shearing effect they experienced. Less alignment of particles is found near the center of the wafer as shear is significantly lower at the center. Experimental investigation has been performed to verify the numerical results. Alignment of the particles in the final coating can be advantageous for various optical, electrical and magnetic applications.
PhysicalDescription
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ix, 63 pages
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Note
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M.S.
Note
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Includes bibliographical references (p. 49-50).
Name
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Hussain
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Syeda Sharmin
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Syeda Sharmin Hussain
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Birnie III
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Dunbar
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dissertation committee chair
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Advisory Committee
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Dunbar P. Birnie III
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Lehman
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Richard
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dissertation committee member
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Advisory Committee
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Richard L. Lehman
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Cosandey
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Frederic
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internal member
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Advisory Committee
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Frederic Cosandey
Name
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Rutgers University
Role
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degree grantor
Name
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Graduate School - New Brunswick
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school
OriginInfo
DateCreated
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2007
DateOther
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2007
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NjNbRU
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Identifier
(type = doi)
doi:10.7282/T3N016XZ
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
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The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
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Name
SYEDA HUSSAIN
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
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Non-exclusive ETD license
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Author Agreement License
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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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3933184
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