Materials Literature
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Systematic changes in the chemistry of evaporated seawater contained in primary fluid inclusions in marine halites indicate that seawater chemistry has fluctuated during the Phanerozoic. The fluctuations are in phase with oscillations in seafloor spreading rates, volcanism, global sea level, and the primary mineralogi…
Abstract A systematic study of the current efficiency (CE) in a laboratory aluminium cell with SnO 2 -based inert anodes was carried out by measuring the overall amount of oxygen relieved at the anode, using two different methods. Inert ceramic anodes of 96% SnO 2 , 2% Sb 2 O 3 , 2% CuO in wt% composition were prepare…
The dynamic conduction of bismuth-containing oxide layered ceramics of the composition Sr 2 Bi 2 TiNb 2 O 12 is investigated in a weak alternating field at frequencies of 0.5–500 kHz in the temperature range 300–700 K. It is demonstrated that the high-temperature conduction can be adequately described in terms of theo…
A novel calix[4]azacrown-4 (2) was prepared, and its single crystal X-ray crystallographic analysis revealed that the carbonyl groups O atoms in 2 interact with amide H in another molecule of 2 by hydrogen bonds in the crystal, thus giving rise to a dimer possessing three “crown ether” rings.
This work presents a study of contact stress phenomena in spherical fruits which generates non-linear relations for force and deformation. The material viscoelastic behavior is then associated with the non-linear relations due to the geometry of the body, generating a non linear viscoelastic problem. Such a nonlineari…
The crystal structure of calcioburbankite (Na,Ca) 3 (Ca, RE ,Sr,Ba) 3 (CO 3 ) 5 found in carbonatites from Vuoriyarvi (North Kareliya) was solved by the Rietveld method. The experimental data were collected on an ADP-2 diffractometer (λCu K α radiation; Ni filter; 16.00° < 2θ < 130.00°; the number of (α 1 + α 2 ) refl…
The variation of the temperatures of martensitic transformations and the rate of radiation damage in TiNi alloys were studied upon irradiation with reactor neutrons. The irradiation was performed at temperatures of 120 and 335 K. In the process of irradiation, electrical resistance of the alloys was measured continuou…
During the last decade, the failure behavior of high-burnup fuel rods under a reactivity-initiated accident (RIA) condition has been a serious concern since fuel rod failures at low enthalpy have been observed. This has resulted in the reassessment of existing licensing criteria and failure-mode study. To address the…
This article analyzes why one cannot rely on an absolute partial discharge (PD) magnitude to assess the insulation condition of rotating machines. How to identify stator insulation deterioration effectively and reliably is discussed and demonstrated by case studies. The paper concludes that trending of PD activity is…
Indium–tin–oxide (ITO) films were prepared by a dip coating method with novel solutions. The dip coating and heating in air at 600°C were repeated to obtain 3- or 10-layer films before annealing in N 2 –0.1%H 2 atmosphere. A 10-layer film (7.0 at.%Sn, ∼ 250 nm-thick) showed the lowest resistivity (3.2×10 -4 Ω·cm). Inc…
Reference 11 should be substituted as follows: 11) A. Leineweber, R. Niewa, H. Jacobs and W. Kockelmann: J. Mater. Chem. 10 (2000) 2827.
The martensitic transformation of a melt spun Ti 5 oNi25Cu25 alloy (cubic B2 s orthorhombic B19) has been investigated by means of thermo-mechanical cycling. The alloy was initially amorphous and it has been characterised after a controlled crystallisation process using differential scanning calorimetry, X-ray diffrac…
Wafer cleaning in semiconductor processes is one of the most critical steps because of the rapid increase in the device integration density and its direct impact on device yield. Highly diluted NH 4 OH solutions to which a nonionic polyoxy-alkylene alkylphenyl ether surfactant was added were evaluated to measure their…
Abstract Small‐amplitude oscillatory measurements, creep and recoil experiments, capillary extrusion flow and shrinkage measurements have been performed to elucidate the effect of block and random chlorinated polyethylene (CPE) on the rheological properties of a ternary high density polyethylene (HDPE)/ poly(vinyl chl…
Two resorcyl di[4-(4-alkoxy-2,3-difluorophenyl)ethynyl]benzoate liquid crystals were prepared and their mesomorphic properties observed and measured. Achiral antiferroelectric phases were seen with increasing length of the hydrocarbon terminal chains.
Abstract This paper introduces a theoretical study of the significant factors that affecting the dynamics of wire particles in a horizontal coaxial gas‐insulated transmission line (GITL) and/or gas‐insulated switchgear (GIS) systems. The dynamics of the particle is investigated using a computational algorithm and unde…
We propose a novel type of liquid-crystal (LC) micro-optical device to rotate the plane of polarization by an in-plane field switching technique. The LC optical rotator is designed to produce twisted LC orientation of various twist angles in the bulk, that is, LC molecules are fixed on one side of the substrate by rub…
The reactions of gas-phase atomic hydrogen [H(g)] and deuterium [D(g)] with preadsorbed nitric oxide [NO(a)] on the hexagonally close-packed Ru(001) surface have been studied by means of temperature-programmed desorption and high-resolution electron energy loss spectroscopy (HREELS). Exposure of gas-phase atomic deute…
<div class="htmlview paragraph">Particulate emission from diesel engines is one of the most important pollutants in urban areas. With increasing worldwide regulatory requirements to lower particulate matter (PM) standards for heavy duty diesel powered vehicles, the interest in diesel particulate filter based emi…
Elucidation of a complex defect configuration arising from the interaction between eight first-order twin boundaries in a diamond thin film prepared by chemical vapour deposition on a silicon substrate is reported. The defect has been identified by ultrahigh-resolution electron microscopy at 0.12nm resolution. It is s…