Materials Literature
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Measured results of a four-terminal directly heated RF phase change switch are presented. Germanium telluride (GeTe) is used as the main resistance change element, connecting the RF input/output lines. The resistivity of GeTe is switched between the high-resistance amorphous-state value of several kΩ and low-resistanc…
Research Article| June 01, 2014 Interactions of Kaolin Minerals in the Environment Randall T. Cygan; Randall T. Cygan 1Geoscience Research and Applications Group, Sandia National Laboratories, Albuquerque, NM 87185-0754, USAE-mail: rtcygan@sandia.gov Search for other works by this author on: GSW Google Scholar Kazue T…
Organic scintillators are often chosen as radiation detectors for their fast decay time and their low Z, while inorganic ones are used when high light yields are required. In this paper we show that a para-terphenyl based detector has a blend of properties of the two categories that can be optimal for energy and posit…
We present a review on recent work performed on periodic complex metallic alloy (CMA) surfaces. The electronic and crystallographic structures of clean pseudo-tenfold, pseudo-twofold, sixfold surfaces will be presented along with the recent findings on CMA of lower structural complexity, i.e. with a smaller unit cell.…
Surface roughness is an important and effective factor in predicting tactile properties of fabrics. The definition of surface roughness and its different evaluating methods are divided into two main groups, subjective and objective, are reviewed. The latter consists of contact and non-contact methods. The evaluation i…
Abstract The use of thermoelectric technology is attractive in many potential applications, such as energy scavenging from waste heat. The basic principles for harvesting electricity from a temperature gradient were first discovered around 180 years ago, but the contemporary technology utilising inorganic semiconducto…
Pine tree substrates (PTSs) may provide growers with sustainable substrate component options. Improved processing of PTS components has provided new materials with little scientific evaluation or understanding of their hydrophysical behavior and properties. Moisture retention characteristics were developed for two PTS…
The corrosion properties of four Mg–5Al alloys with M-alloying elements (tin, manganese and zinc) in a 3.5 wt.% NaCl solution were examined using electrochemical tests and surface analyses. The electrochemical results indicated that the addition of 1 wt.% M metal decreased the corrosion rate and hydrogen evolution rat…
Partial discharge (PD) with different energy always occurs before a serious breakdown in sulfur hexafluoride (SF6) insulating equipment. The high electromagnetic energy of PD can cause the insulation gas SF6to decompose into various components. Component types and their formation rate are directly related with insulat…
This review summarizes the recent developments of electrospun semiconducting metal oxide/polymer composite nanostructures in energy and environment related applications. Electrospinning technique has the advantage of synthesizing nanostructures with larger surface to volume ratio, higher crystallinity with phase purit…
American Process Inc.’s patented AVAP® technology offers commercial-scale production of nanocellulose with flexibility in final product morphology and surface properties (hydrophilic or hydrophobic) that can service the wide variety of emerging end-use market segments. The novel hydrophobic lignin-coated variety of AV…
The ability to predict the natural fragmentation of an explosively loaded metal casing would represent a significant achievement. Physically-based material models permit the use of small scale laboratory tests to characterise and validate their parameters. The model can then be directly employed to understand and desi…
High voltage DC (HVDC) transmission systems have the potential to transform major electrical grids; they can deliver very high powers over long distances with high efficiency and reliability. Cables are required for subsea and underground systems. Extruded cables - i.e. those with polymeric insulation - have been succ…
Properties of fish skin gelatin films incorporated with three essential oils from various sources (basil, plai and lemon) with a gelatin/essential oil ratio of 1:1 (w/w) were determined. Films containing different essential oils had lower tensile strength and elastic modulus, but higher elongation at break and thickne…
A highly porous polythiophene (PTh) nanofibers were synthesized by surfactant assisted dilute polymerization method using FeCl3 as oxidant. They were confirmed by XRD and FTIR analysis. The surface morphology of PTh was done by scanning electron microscopy (SEM). The prepared polythiophene nanofibers were subjected to…
Kaolinite is one of the most important industrial clay minerals, with a worldwide consumption in the millions of tons per year and applications in a wide range of industrial areas. Traditionally, its most important use has been in the paper and ceramic industries. New, innovative techniques are being developed that ar…
Porous cube-aggregated monodisperse Co3O4 microspheres and their supported gold (xAu/Co3O4 microsphere, x=1.6-7.4 wt %) nanoparticles (NPs) were fabricated using the glycerol-assisted solvothermal and polyvinyl alcohol-protected reduction methods. Physicochemical properties of the materials were characterized by means…
Heterogeneous photocatalysis is becoming increasingly important due to the variety of its applications and multidisciplinary aspects. Applications such as water/air detoxification-disinfection, solar-energy storage, high-value-chemical production, optoelectronics, and sensors are some of the most promising. In recent…
Structural hierarchy and heterogeneity are inherent features in biological materials, but their significance in affecting the system behaviors is yet to be fully understood. In Sec. I, this article first identifies the major characteristics that manifest, or are resulted from, such hierarchy and heterogeneity in mater…
Preliminary phytochemical screening was carried out for methanolic extracts of Pterolobium hexapetalum (PH) and Celosia argentea (CA). Methanolic extracts of PH and CA were studied as corrosion inhibitors for mild steel in industrial water medium using mass loss and electrochemical techniques. The adsorption of both P…