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Controlling Electromagnetic Surface Waves with Scalar and Tensor Impedance Surfaces.
The propagation characteristics of electromagnetic waves on various isotropic (scalar) impedance surfaces have been studied for some time, in order to control surface waves and leaky-wave radiation. One and two dimensional ...
The preparation and some reaction of F2PSPF2 and F2PC(CF3)2OPF2, and the synthesis of the bis-borane adduct of F2PSSPF2
The potentially bidentate fluorophosphine ligand F2PSPF2 can be prepared in 75% yield from the reaction of F2PBr and [(C4H9)3Sn]2S. On the basis of infrared and Raman spectra, the compound has been assigned a bent confirmation ...
Damage Evolution and Characterization of SiC/SiC Ceramic Matrix Composites Using Micro-Computed Tomography Techniques
In situ x-ray computed tomography was performed on melt infiltrated (MI) SiC/SiC ceramic matrix composites under tension in order to observe and quantify damage progression. The advanced light source (ALS) at Lawrence ...
Picosecond X-ray diffraction studies of laser-excited acoustic phonons in InSb
We have employed time-resolved X-ray diffraction with picosecond temporal resolution to measure the time-dependent rocking curves of laser-irradiated asymmetrically cut single InSb crystals. Coherent acoustic phonons were ...
Simulation and theory of abnormal grain growth--anisotropic grain boundary energies and mobilities
Abnormal grain growth has been studied by means of a computer-based Monte Carlo model. This model has previously been shown to reproduce many of the essential features of normal grain growth. The simulations presented in ...
Tandem Organic Photovoltaics.
The unique properties of organic semiconductors have led to significant scientific and commercial interest in organic electronics over the last ten years. During that time, these devices have gone from being a laboratory ...
Micro-mechanical deformation mechanisms in the fracture of hybrid-particulate composites based on glass beads, rubber and epoxies
(Wiley Subscription Services, Inc., A Wiley Company, 2000-12)
Two tougheners, glass beads and carboxyl terminated butadiene acrylonitrile copolymer (CTBN), are used to toughen and stiffen an epoxy thermoset. Rubber-encapsulated glass beads are used and the hybrid particulate composites ...
Nanostructured Semiconductors for Thermoelectric Energy Conversion: Synthesis and Transport Properties.
Half-Heusler (HH) alloys are among the most popular material systems for high temperature thermoelectric energy conversion. Approaches to increase the thermoelectric figure of merit (ZT) of HH range from (1) chemical ...
Ion beam modification of metals: Compositional and microstructural changes
Ion implantation has become a highly developed tool for modifying the structure and properties of metals and alloys. In addition to direct implantation, a variety of other ion beam techniques such as ion beam mixing, ion ...
Application of resonance Raman spectrometry to the determination of vitamin b12