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[Illinois] Interphase Chemical Mapping Of Carbon Fiber-epoxy Composites By Afm-ir Spectroscopy
13 Apr 2017 | Contributor(s):: Chris Montgomery
The properties and performance of carbon fiber reinforced polymer matrix composites are highly influenced by the chemical interactions of the fiber/matrix interface region. Many researchers have hypothesized that the presence of carbon fibers in epoxy causes a chemical gradient to form around...
Bifunctional Air Electrode Studies
01 Apr 2016 | | Contributor(s):: Brian Demczyk, C. T. Liu
This presentation outlines a number of fundamental and processing studies conducted on carbon-based bifunctional air electrodes
Structure and Properties of Carbon and Boron Nitride Nanotubes
10 Jan 2014 | | Contributor(s):: Brian Demczyk
This presentation describes structure and mechanical property determinations on carbon and boron nitride (sp2-bonded) nanotubes , as deduced by transmission electron microscopy.
Ripples and Warping of Graphene: A Theoretical Study
08 Jun 2010 | | Contributor(s):: Umesh V. Waghmare
We use first-principles density functional theory based analysis to understand formation of ripples in graphene and related 2-D materials. For an infinite graphene, we show that ripples are linked with a low energy branch of phonons that exhibits quadratic dispersion at long wave-lengths. Many...
17 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck
Graphene is a one-atom-thick planar sheet of sp2-bonded carbon atoms that are densely packed in a honeycomb crystal lattice. Graphene sheets are weakly bonded to other graphene layers above and below to form Graphite. The difference between two layers is approximately 0.335 nm .Graphite can...