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dc.contributor.advisorField, David P.
dc.creatorFAKRON, OSAMA M.
dc.date.accessioned2014-09-11T17:15:40Z
dc.date.available2014-09-11T17:15:40Z
dc.date.issued2014
dc.identifier.urihttp://hdl.handle.net/2376/5123
dc.descriptionThesis (Ph.D.), School of Mechanical and Materials Engineering, Washington State Universityen_US
dc.description.abstractIn recent years, electron tomography (reconstruction of three-dimensional {3D} information from a tilt series of bright field images obtained in the transmission electron microscope {TEM}) has attracted the attention of electron microscopists and materials researchers for its possible applications regarding the characterization of carbon nanotube (CNT) turfs. In this research, the electron tomography technique has been extended to imaging lineal structures and CNT turfs from secondary electron images in a scanning electron microscope (SEM). The technique is used to examine the structure of a fiber system before and after deformation. The expected application is to investigate the structure of CNT turfs, and to use the 3D CNT fiber models for computational characterizations. Test samples of low/high density steel wool and CNTs were tilted around a single axis by one-degree steps, and 3D images were reconstructed for the specimens by conventional electron tomography software. The technique is shown to be able to reasonably reconstruct the 3D features of the turfs, and to extract features such as lineal density, tortuosity, and the fiber path equation; features that define the mechanical properties of these materials.en_US
dc.description.sponsorshipSchool of Mechanical and Materials Engineering, Washington State Universityen_US
dc.language.isoEnglish
dc.rightsIn copyright
dc.rightsPublicly accessible
dc.rightsopenAccess
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.rights.urihttp://www.ndltd.org/standards/metadata
dc.rights.urihttp://purl.org/eprint/accessRights/OpenAccess
dc.subjectMechanical engineeringen_US
dc.subjectElectron Tomographyen_US
dc.titleSEM-BASED ELECTRON TOMOGRAPHY OF TURFS COMPRISED OF LINEAL STRUCTURES
dc.typeElectronic Thesis or Dissertation


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