Materials Literature
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Local minima configurational averaging (CA) and Monte Carlo (MC) simulations are used to examine in detail the variation of thermodynamic and structural properties of binary oxide solid solutions with the volume mismatch between the end members. The maximum volume mismatch studied corresponds to that in the CaO MgO so…
The aim of this study is to understand the performance of firefighter protective clothing in preventing thermal injury of skin that may result from exposure to high-intensity thermal radiation. A mathematical model is developed to study transient heat and moisture transport through multilayer fabric assemblies. The mo…
An analysis has been made of the tensile strength of sisal fibres and the interfacial adhesion between fibres and polyester resin droplets. Density and microscopy methods were used to determine the cross-sectional area of the sisal fibres. The average tensile strength of treated sisal fibres decreased by a modest amou…
Two kinds of ordered structures, a cylindrical hexagonal and a compact hexagonal arrangement of micelles, were synthesized using either CTAB or a Pluronic block copolymer as templating agents. The ordering of thin films deposited on glass, dielectrics (Si3N4, SiTiOx) and a metal with a native oxide (Ti) were compared.…
NO decomposition over supported alkaline earth metal oxide catalysts was strongly dependent on the type of metal oxide support. Y2O3 was the most effective support. Ba/Y2O3 showed the highest NO decomposition activity, which decreased in the order of Ba/Y2O3 > Sr/Y2O3 > Ca/Y2O3 > Mg/Y2O3 ~ Y2O3. The catalytic activity…
We report studies on the extrusion of nearly monodisperse triblock and pentablock copolymers composed of poly(cyclohexylethylene) (C) and poly(ethylene) (E). Lamellae forming CEC triblock and CECEC pentablock copolymers were extruded through a slit die using a capillary rheometer at various processing speeds and tempe…
A facile synthesis of 2-formyl-1,8-naphthalenediol is reported. Its potential as a general precursor for the preparation of unsymmetrical multidentate chelating ligand systems based on 1,8-naphthalenediol is demonstrated by the synthesis of the dinucleating ligand L(4-)(H(4)L=N,N'-bis(2-(1,8-naphthalenediol)methyliden…
Colletotrichum gloeosporioides is the casual agent of the disease known as anthracnose. This fungus infects a wide range of hosts during the pre and postharvest stages of various horticultural commodities. To date, chitosan a natural biodegradable compound, chitin derivative, has been tested in the control of pathogen…
With growing concern on health and safety worldwide, a requirement for environmentally benign piezoelectrics are continually increasing. The Bi0.5Na0.5TiO3 (BNT) ceramic is a promising piezoelectric material without the lethal element, Lead.Conventional mixed oxide method generally yields BNT with grains in the micron…
A series of Bor-60 fast-reactor irradiations have been completed on commercial and laboratory heats of 304SS and 316SS irradiated at 330°C to doses from 5 to 20 dpa. A quantitative comparison has been made to assess critical changes in material microstructure due to differences in fast-reactor versus lightwater-reacto…
It is postulated that the catalytic active centre in Sn-Beta and Sn-MCM-41 zeolites for Baeyer-Villiger oxidations involves not only the framework Sn sites but also an associated "basic" oxygen that stabilises the reaction transition state through hydrogen bonding. The presence of these "basic" sites has been studied…
Huge amounts of alkaline enzymes are used in the detergent industry, and they have been widely incorporated into heavy-duty laundry and automatic dishwashing detergents. The alkaline enzymes used in modern detergents are protease, cellulase, α-amylase, lipase, and mannanase. In this chapter, methods for screening alka…
Effects of Ca 2+ and Mg 2+ on the CO 2 corrosion behaviors of tube steel were studied in simulated oil-field environment. The influence of Ca 2+ and Mg 2+ on the corrosion rate and morphologies of corrosion product layer was determined by scanning electron microscope and measuring mass loss. Potentiodynamic polarizati…
Hydrothermal and precipitation methods have been applied to synthesize nanoscale CeO2 catalysts for selective catalytic reduction of NO with hydrocarbon under oxygen-rich condition. The former procedure has the advantage of enhancing the hydrothermal stability of nanomaterial. BET results show that their surface areas…
Waste asbestos from abatement activities within UK decommissioning nuclear sites has traditionally been disposed to licensed landfill or, in the case of radiologically contaminated wastes, the national Low-Level Waste (LLW) repository at Drigg. However, the combination of a number of factors required alternative dispo…
The paper presents the results of tests on the structure, basic functional properties and physiological comfort of microporous polyurethane membranes designed for internal barrier layers of textile-polymeric composite systems with various characteristics and practical applications. The membranes tested were prepared a…
In this research, we validate an imaging system for automatic grading of fabric smoothness, developed at Texas Tech University. This system consists of a sheet-of-light, laser-line projector; a smart CMOS camera; a moving platform; and a PC. Its purpose is to provide the textile industry with a tool for rapid, objecti…
The thermoelectric properties of titanium substituted ZrNiSn have been measured from room temperature to 1000 K. The samples were prepared by arc melting followed by spark plasma sintering (SPS) technique. High SPS temperature increased the homogeneity of titanium substituted sample, result at increase of the electric…
Single crystal tin nano-rod arrays were fabricated by the electrodeposition method when amphiphilic triblock copolymer P123 was used as a soft template at a concentration much lower than that for forming a liquid crystalline phase.
The purpose of this work is to fabricate and evaluate a flexible thermoelectric (TE) device. Because of its flexibility, it is expected that application field of the TE device will be enlarged. The device consists of p and n-type thin films placed between 2 polyimide sheets, and it can generate electricity from temper…