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EFFECT OF ELECTRON BEAM RADIATION ON THE SURFACE AND BULK MORPHOLOGY OF CARBON NANOFIBERS

Evora, Maria Cecilia
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1272027713

Abstract Details

2010, Doctor of Philosophy (Ph.D.), University of Dayton, Materials Engineering.
This study explored the use of a high energy electron beam as the only available technique for selective area surface modification of carbon nanofibers through controlled parameters such as radiation dose, sample temperature, and environment. The application of this variable space led to the production of unique morphological features on the nanofiber surfaces. Several analytical techniques were used to establish the mechanism for these surface modifications, including microscopy, spectroscopy, thermal analysis, and gas adsorption. Depending on the exposure parameters, a nanofiber surface rich with some or all of the following was created: i) free radicals, ii) chemisorbed or physisorbed functional groups, iii) surface roughness from peeling and recombination of graphene layers, and iv) activated carbon surface with nano to meso porosity. The demonstrated consequences of these selective modifications were improved dispersion of the nanofibers in liquid and good bonding with epoxy. Ultimately this process will give the user custom control over the surface interaction of carbon nanofibers with other media such as liquids, polymer resins, gas probes, etc.
Donald Klosterman, PhD (Committee Chair)
Khalid Lafdi, PhD (Committee Co-Chair)
Daniel Eylon, D.Sc (Committee Member)
Charles Browning, PhD (Committee Member)
149 p.
Materials Science
Carbon nanofiber; electron beam; oxidation

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Citations

  • Evora, M. C. (2010). EFFECT OF ELECTRON BEAM RADIATION ON THE SURFACE AND BULK MORPHOLOGY OF CARBON NANOFIBERS [Doctoral dissertation, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1272027713

    APA Style (7th edition)

  • Evora, Maria. EFFECT OF ELECTRON BEAM RADIATION ON THE SURFACE AND BULK MORPHOLOGY OF CARBON NANOFIBERS. 2010. University of Dayton, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1272027713.

    MLA Style (8th edition)

  • Evora, Maria. "EFFECT OF ELECTRON BEAM RADIATION ON THE SURFACE AND BULK MORPHOLOGY OF CARBON NANOFIBERS." Doctoral dissertation, University of Dayton, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1272027713

    Chicago Manual of Style (17th edition)

dayton1272027713
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© 2010, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.