Papers – Page 6 – TechConnect Briefs

A breakthrough in High Temperature Superconductors

Lau W.C.W., LAU Superconductors Inc., US

There has been a breakthrough in using long continuous fibers to reinforce High Temperature Superconductors (HTS) [1]. This has led to two innovations: a) Cosmic Ray Magnetic Shields protecting satellites and b) a Dipole Coilgun [...]

Precipitation-Strengthened and Microlayered Bulk Copper- and Molybdenum-Based Nanocrystalline Materials Produced by High-Speed Electron-Beam Evaporation–Condensation in Vacuum: Structure and Phase Composition

Grechanyuk N.I., Grechanyuk V.G., Grechanyuk N.I., Grechanyuk V.G., Manulyk A.F., Synergy ANTECH Services Corp., CA

The phase composition and structurization of three types of copper and molybdenum composite materials, 0.8 to 5 mm thick, were condensed from the vapor phase at substrate temperatures 700 and 900 0C. They are considered: [...]

Spectral Characterization of Tin Dioxide for Gas-Sensing Applications

Alghamdi H., Concepcion B., Baliga S., Misra P., Howard University, US

Thin films and powder samples of tetragonal tin dioxide (SnO2) on UV quartz and silicon wafers, created through radio frequency (RF) sputtering in an oxygen/argon mixed atmosphere, have been prepared and characterized spectroscopically. These thin [...]

Thermal-resistant Plastic Composites for Industrial Applications: Processing and Properties

Zhong S., Rutkevičicus M., Stoner C., ABB US Research Center, US

Intumescent thermoplastic composites have found wider applications in recent years thanks to their excellent thermal- resistant performance, low cost and high compatibility in mass production, such as injection molding. A series of intumescent polymer composites [...]

New Nano Solid Based on Carbon Nanomaterials-Nanoparticle through Aqueous Solutions

Hong H., Younes H., Grablander T., Bailey C., Novum Nano, US

A better understanding of the bonding and aggregation processes occurring between carbon nanomaterials and metal oxide particles in aqueous solutions is important in developing novel nanosolids for applications in sensor development, highly conductive paint nanotube [...]

Large scale Manufacturing of Calcium Phosphate Nanoparticles for Medical Applications

Panagiotou T., Delphi Scientific, US

Calcium phosphate (CaP) nanoparticles find medical applications in a number of areas, including delivery of nucleic acid therapeutics and calcium-based tissue engineering. CaP is well-studied biocompatible, bioactive, and bioabsorbable material and is used extensively in [...]

Flame-based Aerosol Synthesis of Metal Nanoparticles and Supported-Metal Nanostructures

Liu S., Swihart M.T., University at Buffalo (SUNY), US

Commercialization of inorganic nanomaterials is often limited by scale-up. Our group developed a unique flame- based aerosol process for scalable, continuous, and low-cost production of various nanomaterials, the High Temperature Reducing Jet (HTRJ) Reactor. Over [...]

On the Ideal Diamagnetism of Composite Graphene and Graphite Nanostructures

Rzhevskii A., Chahid S., Dulal R., Teknowijoyo S., Gulian A., Thermo Fisher Scientific, US

Graphite and its derivatives such as graphene have demonstrated many unique properties that are still un- der intense exploration. In particular, these properties are important for microelectronics applications. In our case it was ideal diamagnetism [...]

Impact of Coal-Borne Impurities on Coal-Derived Graphene Quantum Dots

Azenkeng A., Stanislowski N.E., Laumb J.D., University of North Dakota Energy & Environmental Research Center, US

The impact of coal-borne impurities on coal-derived graphene quantum dots (GQDs) has been investigated on four U.S. coal ranks: lignite, subbituminous, bituminous, and anthracite. Preliminary characterization of the GQDs has been done using ultraviolet-visible spectroscopy [...]

Analysis of Lag Phenomena and Current Collapse in Field-Plate AlGaN/GaN HEMTs with High-k Passivation Layer

Komoto K., Saito Y., Horio K., Shibaura Institute of Technology, JP

In AlGaN/GaN HEMTs, slow current transients are often observed even if the gate voltage or the drain voltage is changed abruptly. This is called gate lag or drain lag, and problematic in circuits applications. The [...]