Materials Literature
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The time-dependent deformation behavior of pressure tubes in CANDU™ (CANada Deuterium Uranium) reactors is an important property that has to be predicted for reactor life management. Measurements accumulated over many years have shown that there is considerable variability in deformation rates between different tubes.…
Kunststoffe haben in vielen Bereichen nicht nur altbekannte Werkstoffe ersetzt, sondern auch zu völlig neuen Produkten geführt und Ingenieuren neue Perspektiven zur Umsetzung ihrer Ideen eröffnet. Dieses Lehrbuch gibt auf verständliche Weise einen Ãberblick über die Eigenschaften der Kunststoffe, deren Optimieru…
Carbon nanotubes were grown directly on carbon fibres using the chemical vapor deposition technique. The effects of reaction temperature (800-900°C) and hydrogen gas flowrate (100-300 ml/min) on the morphology of the carbon nanotube coating were investigated. Carbon nanotubes produced were characterized using scanning…
Angle resolved XPS is a useful method for obtaining non-destructive quantification of thin (4-6nm) layers with good absolute depth resolution. Although acquisition of ARXPS data with modern instrumentation is easy, determining the depth distribution of elements from the data is more challenging. The maximum entropy me…
This study investigates and compares mean profile depth (MPD) measurements from three laser-based macrotexture measuring devices, namely a Dynatest laser profiler, a Circular Texture Meter, and an Ames Laser Texture Scanner, to mean texture depth (MTD) results from volumetric sand patch tests.In addition, the effects…
The CORA experiments carried out in an out-of-pile facility at the Kernforschungszentrum Karlsruhe (KfK), Federal Republic of Germany, are part of the Severe Fuel Damage (SFD) program. The experimental program was to provide information on the failure mechanisms of Light Water Reactor (LWR) fuel elements in a temperat…
The dynamic mechanical behaviour of unplasticized polyvinyl chloride (UPVC) and its composites reinforced with banana pseudostem (BPS) fibres has been studied, with special reference to the effect of filler loading and temperature. Dynamic properties such as the storage modulus (E’) and damping behaviour (tan d) were…
Multiferroic (BLFO/CFO/BLFO) thin films were grown by radio-frequency sputtering on a -buffered substrate. To modulate their multiferroic behavior, the CFO layer thickness was varied, while the thickness of the BLFO layer was kept unchanged. Both ferroelectric and ferromagnetic behaviors of the BLFO/CFO/BLFO thin film…
By changing the jacket,the filler and the impact velocity of the PELE projectiles,the impact behaviors of the PELE projectiles perpendicularly perforating thin target plates were investigated experimentally.On the basis of the experimental results,the stresses of the PELE projectiles during their penetration into the…
In order to investigate rock dynamic compression mechanical properties with strain rate varying from 40 s-1 to 150 s-1 on amphibolites,the specimens are subjected to axial impact with different projectile speeds by using the split Hopkinson pressure bar(SHPB) of 100 mm in diameter and a thin red copper circular plate…
Ultra-high voltage DC bushing bottlenecks the development of ultra-high voltage DC power transmission device in China.Epoxy/crepe paper composite is a very important material for ultra-high voltage DC bushing.In this paper,the microstructures of different crepe papers were observed,some pure epoxy and epoxy/crepe pape…
Using the combined techniques of sol-gel and electrospinning, nanostructures (wire (1D) to plates (3D)) of LiV3O8 are prepared with poly vinyl alcohol (PVA) as the template. A precursor gel of LiOH-V2O5 is prepared in alkaline medium. Fibrous membranes of PVA with different weight% of LiOH-V2O5 gel are prepared by ele…
Different generations of new aliphatic hyperbranched polyesters (G1–G3), based on the polycondensation of 2,2-bis(hydroxymethyl) propionic acid (bis-MPA) as a monomer and 1,3,5-tris(2-hydroxyethyl) cyanuric acid (THECA) as a core, were modified by reacting their hydroxyl end-groups with phthalic anhydride (PG1–PG3) an…
Abstract: Bismuth niobate solid solutions, BixNbOδ (2.5 ≤ x ≤ 6), have been prepared using a mechanochemical method. The solid solutions were also prepared using a solid-state conventional method for comparison purposes. Bi3NbO7 was successfully obtained via a mechanochemical method at a lower synthesis temperature (m…
Based on scattering theory of high-energy x-ray, the structure and extinction properties of Mg2Si crystal have been studied. It is shown that for Mg2Si with antifluorite structure extinction only occurs if the indices of diffraction H, K and L are neither all odd nor all even, and diffraction occurs if H, K and L are…
A B S T R A C T The leaves of Jasminum grandiflorum L. (Family: Oleaceae) is used in folk medicine for treating ulcerative stomatitis, skin diseases, ulcers, wounds, etc. Anti ulcer activity of hydro alcoholic extract of leaves of Jasminum grandiflorum L. was evaluated employing aspirin + pylorus ligation (APL) induce…
The extracts of Calotropis procera were as investigated for its anti-hyperglycemic, effect in Male Wister Albino rats. Diabetes was induced by administration of single dose of streptozotocin (STZ, 50 mg/kg, I.P). The pet ether, methanol and aqueous extracts of leaves of C. procera at dose of 250 mg/kg, per oral were a…
Wereviewthesolid-stateNMRliteratureforthe 35/37 Cl, 79/81 Br,and 127 Inuclides, with coverage up to August 2008. The theory related to NMR spectroscopy of half-integer quadrupolar nuclei in powdered samples is briefly summarized, as are the experimental methods for recording such spectra. The most recent experimental…
The paper presents the results of studies aimed at the assessment of the antimicrobial activity of filtrating meltblown nonwoven used in the production of protective half-masks. Polypropylene nonwoven materials containing a biologically active compound in their composition - Ag/AgCl ions on different carriers: ZnO, Ti…
Electron probe microanalysis (EPMA), inductively coupled plasma atomic emission spectrometry (ICP-OES), and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) were applied to study the interaction of molten LiF-NaF salt mixtures with candidate structural materials (alloys) for a nuclear reactor-tr…