Materials Literature
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Multi-walled carbon nanotubes were synthesized on a Ni/Au/Ti substrate using a thermal chemical vapor deposition process. A Ni layer was used as a catalyst, and an Au layer was applied as a barrier in order to prevent diffusion between Ni and Ti within the substrate during the growth of carbon nanotubes. The results s…
The shredding process has not been sufficiently investigated for the design of better, energy and material saving shredding machines. In connection with present-day concern about the environment, ecology, energy saving, recycling, and finding new sources of energy, we need to look at the design of shredding machinery,…
North Carolina State University Theses Fiber and Polymer Science.;North Carolina State University Theses Materials Science and Engineering.
The material formed by depositing C(2)(-) anions onto/into thin C(60) films (on graphite) at room temperature has been studied by means of thermal desorption mass spectroscopy, ultraviolet photoionization spectroscopy, atomic force microscopy (AFM), and surface enhanced Raman spectroscopy. As-prepared, C(2)/C(60) film…
This paper describes recent efforts to characterize the diffusion of single molecule SERS analytes adsorbed to the surface of aggregated silver nanoparticles. Using a two-dimensional Gaussian function to fit the point spread function of a single diffraction-limited SERS emission image, the centroid of the emission can…
Abstract Flower like cadmium sulfide/organic (CdS-or) nanostructures were synthesized via a simple reaction between CdCl
Abstract Hydrolyzed cyclocopolymer prepared from divinyl ether and maleic anhydride, poly[(divinyl ether)‐ co ‐(maleic anhydride)] (DIVEMA), was functionalized with aminoadamantane and subsequently compared with the hydrolyzed DIVEMA with respect to physicochemical properties. The complexation behavior of adamantyl mo…
Polarization dependent vanadium L edge x-ray absorption spectra of BaVS(3) single crystals are measured in the four phases of the compound. The difference between signals with the polarizations E perpendicular to c and E is parallel to c (linear dichroism) changes with temperature. Besides increasing the intensity of…
A two‐step process based on a low‐pressure helium plasma treatment followed by acrylic acid‐grafting copolymerization was used for the surface modification of expanded polytetrafluoroethylene (ePTFE) films. The effects of plasma treatment power and treatment time on the hydrophilicity of the film surface were investig…
Boron and carbon are the elements that have the property to build molecules of unlimited size by covalent self-bonding. In this way, boron produces polyhedral clusters that have been developed for 27.1 Introduction ........................................................................................................…
It should be noted that most of these applications require modication of boron hydride clusters mainly through a substitution of various atoms or functional groups for hydrogen atoms. For the icosahedral carboranes C2B10H12 this problem can be easily solved due to availability of their carbon atoms for “normal” organ…
Crystallization kinetics of ammonium carnallite (NH 4 MgCl 3 ·6H 2 O), a double salt formed in NH 4 Cl-MgCl 2 solution, and ammonium chloride in the NH 4 Cl-MgCl 2 -H 2 O system were experimentally investigated with the mixed-suspension mixed-product removal (MSMPR) crystallizer. The metastable zone widths of ammonium…
Nanocrystallized SiO2-TiO2 with tubular mesopores was prepared via the sol-gel technique. Gold was deposited in the tubular mesopores of the nanocrystallized SiO2-TiO2. The shape of the gold was varied from one-dimensional [1-D] to zero-dimensional [0-D] nanostructures by an increase in TiO2 content and ultraviolet [U…
By making use of an e-beam deposition system, the [Co(2 Å)/Pd(10 Å)]15 multilayers were prepared on a Si(100) substrate and anodized aluminum oxide [AAO] templates with average pore diameters of around 185, 95, and 40 nm. The mechanism of magnetization reversal of the Co/Pd multilayers was investigated. Wall motion wa…
The pressure behavior of an amorphous Si-rich SiGe alloy ($\ensuremath{\alpha}$-Si${}_{x}$Ge${}_{1\ensuremath{-}x}$, $x=0.75$) has been investigated up to about 30 GPa, by a combination of Raman spectroscopy, x-ray absorption spectroscopy, and x-ray diffraction measurements. The trends of microscopic structural proper…
The unusual dideoxy sugar d-anthrose has been identified as an important component in the endospores of infectious agents such as Bacillus anthracis and Bacillus cereus. Specifically, it is the terminal sugar on the bacterium's exosporium, and it provides a point of interaction between the spore and the host. The bios…
BNCT is based on the very high cross section of boron-10 nuclei for neutron capture, which is followed by the spontaneous ssion of the resulting excited boron-11 nuclei to produce highlinear energy transfer (high-LET) alpha-particles and recoiling lithium-7 nuclei according to the equation:1−4 10B + 1n → 7Li3+ + 4He2…
The growth of ultrathin two-dimensional manganese oxide nanostripes on vicinal Pd(1 1 N) surfaces leads to particular stable configurations for certain combinations of oxide stripe and substrate terrace widths. Scanning tunneling microscopy and high-resolution low-energy electron diffraction measurements reveal highly…
The high-k dielectric TiO2/ZrO2 bilayer composite film was prepared on a Si substrate by radio frequency magnetron sputtering and post annealing in N2 at various temperatures in the range of 573 K to 973 K. Transmission electron microscopy observation revealed that the bilayer film fully mixed together and had good in…
Abstract Using first principles density functional theory calculations, we have studied the adsorption of carbon monoxide (CO) on clean, Ag and Pd doped MgO(001), TiO2(110), and α‐Al2O3(0001) surfaces. Our results show that adsorption of CO on the clean surfaces is generally weak. Ag doping improves the adsorption onl…