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The effect of microstructural variation on the mechanical and acoustic properties of silicon carbide
Descriptive
TitleInfo
Title
The effect of microstructural variation on the mechanical and acoustic properties of silicon carbide
Name
(type = personal)
NamePart
(type = family)
Slusark
NamePart
(type = given)
Douglas Michael
NamePart
(type = date)
1978-
DisplayForm
Douglas Slusark
Role
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(authority = RULIB)
author
Name
(type = personal)
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(type = family)
Haber
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(type = given)
Richard A
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Richard A Haber
Affiliation
Advisory Committee
Role
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(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Niesz
NamePart
(type = given)
Dale E
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Dale E Niesz
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Miller
NamePart
(type = given)
Steven L
DisplayForm
Steven L Miller
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Pujari
NamePart
(type = given)
Vimal K
DisplayForm
Vimal K Pujari
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
outside member
Name
(type = corporate)
NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
(type = corporate)
NamePart
Graduate School - New Brunswick
Role
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(authority = RULIB)
school
TypeOfResource
Text
Genre
(authority = marcgt)
theses
OriginInfo
DateCreated
(qualifier = exact)
2012
DateOther
(qualifier = exact);
(type = degree)
2012-10
CopyrightDate
(qualifier = exact)
2012
Place
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(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
Silicon carbide ceramic materials have many beneficial properties which have led to their adoption in various industrial uses, including its application as an armor material. This is due to the high hardness and stiffness of these materials, as well as a low relative density. The homogeneity of the final properties depends upon the processing history of the material. Factors which affect this include the need for high temperatures and sintering additives to achieve densification, as well as the presence of additive agglomerates and pressing artifacts within the green compact. This dissertation seeks to determine the effect which microstructural variability has on the acoustic and mechanical properties of sintered silicon carbide materials. Sample sets examined included commercially produced, pressurelessly sintered tiles, as well as additional, targeted tiles which were specifically produced for evaluation in this study. Production of these targeted samples was carried out such that particular aspects of the microstructure were emphasized. These included tiles which were fired with an excess of boron sintering aid as well as tiles which had been pressed to a reduced green body density and then fired. The sample evaluation procedure which was developed incorporated non destructive evaluation methods, mechanical testing, and both fractographic and image analysis of fractured and polished sections. Non destructive evaluation of the tiles was carried out by Archimedes density and ultrasound scanning at 20 MHz to determine the acoustic attenuation coefficient. Selected samples were chosen for machining into ASTM B-type bend bars on which 4-pt flexure testing was performed. Strength limiting features were designated for each sample set. The correlation between acoustic attenuation coefficient and quasi-static strength was examined both qualitatively and quantitatively. This was done by comparing the primary fracture location of flexure bars to features within the ultrasound maps along with linear regressions of scatter plots of attenuation coefficient and fracture strength. The analysis showed that while significant variability existed within the strength results from the three sets of flexure bars, the presence of individual strength limiting features were not resolved in the ultrasound scans. However, variations in bulk microstructure corresponding to the three sample sets were represented in the attenuation coefficient values.
Subject
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Topic
Materials Science and Engineering
RelatedItem
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
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ETD
Identifier
ETD_4130
PhysicalDescription
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(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
xxix, 302 p. : ill.
Note
(type = degree)
Ph.D.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = vita)
Includes vita
Note
(type = statement of responsibility)
by Douglas Michael Slusark
Subject
(authority = ETD-LCSH)
Topic
Silicon carbide--Mechanical properties
Subject
(authority = ETD-LCSH)
Topic
Silicon carbide--Acoustic properties
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000066988
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T3H70DM6
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Slusark
GivenName
Douglas
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
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(qualifier = exact);
(point = start)
2012-05-24 16:15:55
AssociatedEntity
Name
Douglas Slusark
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
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.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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