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dc.contributor.advisor Ajayan, Pulickel M
dc.contributor.advisor Vajtai, Robert
dc.creatorHart, Amelia HS Church
dc.date.accessioned 2017-07-31T17:54:23Z
dc.date.available 2017-07-31T17:54:23Z
dc.date.created 2017-05
dc.date.issued 2017-02-16
dc.date.submitted May 2017
dc.identifier.citation Hart, Amelia HS Church. "Novel Three-Dimensional Silicon Carbide Nano-Structures." (2017) Diss., Rice University. https://hdl.handle.net/1911/95617.
dc.identifier.urihttps://hdl.handle.net/1911/95617
dc.description.abstract Silicon carbide nanotubes have been found to have the same excellent mechanical properties in extreme thermal and oxidative environments as bulk silicon carbide, but with the resiliency similar to carbon nanotubes due to quantum size effects. The simplest, most cost efficient method to synthesize silicon carbide nanotubes is conversion from carbon nanotubes. By investigating the conversion mechanisms of carbon nanotubes (CNTs) to silicon carbide nanotubes (SiCNTs), studying their resulting properties, and applying them in different ways, two composites can be created for use in applications that require optimal mechanical properties in high heat and oxidation. The first structure involves covering continuous silicon carbide fiber with protruding silicon carbide nanotubes, dubbed “fuzzy” fiber, which is created to be woven, layered, and put inside a ceramic matrix for extremely high temperature heat engines encountered in aerospace applications which come into contact with high heat and oxidation. The second structure is a silicon carbide nanotube/nanowire sphere that can be used for its excellent compressive strength and resiliency as well as its resistance to high heat and oxidation. By converting carbon nanotubes to silicon carbide nanotubes/nanowires, structures that are more easy and cost effective to obtain, can be synthesized to maintain excellent mechanical properties in high temperature and oxidative environments.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectSilicon Carbide
Silicon Carbide Nanotubes
Silicon Carbide Nanowires
Carbon Nanotubes
dc.title Novel Three-Dimensional Silicon Carbide Nano-Structures
dc.date.updated 2017-07-31T17:54:23Z
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Materials Science and NanoEngineering
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Doctoral
thesis.degree.name Doctor of Philosophy


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