Materials Literature
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Ladder-knit fancy yams are produced using a range of take-up ratios and component yams on a knitting machine that produces fancy yams. The effect of the properties of the component yarns on the final count, tenacity at break, and appearance of ladder-knit fancy yams is studied, and an expression is derived to determin…
Environmentally assisted cracking involves synergistic interactions between corrosion and deformation processes. This study focused on providing insight into the influence of the environment on the time-dependent deformation behavior of an ultra-high-purity Ni-16Cr-9Fe alloy in argon, dissociated hydrogen, and water e…
J R Michael; Electron Backscatter Diffraction in the SEM: A Tutorial, Microscopy and Microanalysis, Volume 8, Issue S02, 1 August 2002, Pages 724–725, https://d
Abstract To investigate the misorientation dependence of fracture behavior and Sb segregation level for different [001] symmetric tilt boundaries in Cu–2.0 mass% Sb alloy bicrystals, tensile tests at several temperatures from 77 to 743 K and energy-dispersed X-ray spectroscopy analyses were performed. The degree of em…
The paper describes the electric field behavior near a contact point in various arrangements with a zero contact angle when surface conductivity is present on a solid surface. Electric field distributions are calculated for arrangements with three contact conditions: point, line, and surface contact. We focus on the e…
To detect subtle depletion of nonexchangeable K occurring in the rhizosphere, extraction with a much weaker acid solution (0.01 m HCl) than that conventionally used (1 m HNO3, 1 m HCl) was attempted. Soils sampled from the rhizoboxes in which maize (Zea mays L.) had been growing for 17 d was sequentially extracted, fi…
Stephan Uhlemann, Max Haider; Experimental Set-up of a Purely Electrostatic Monochromator for High Resolution and Analytical Purposes of a 200 KV TEM, Micr
Abstract We have explored the possibility of obtaining information about the surface nanostructure (i.e., how a given phase of material is distributed near to the surface region) from the analysis of loss plasmons that appear in the lower kinetic energy side of photoelectron and Auger peaks. First, we show an example…
The present article reviews the feasibility of electrochemical noise (ECN) measurements as a corrosion probe for monitoring corrosion changes on stainless steel 304L (UNS 30403). Controlled tests for ECN and weight lossmeasurements were conducted in 10% NaCI solution for stainless steel 304L (UNS 30403). Corrosion beh…
Abstract The oxidation of (Pb,Ge)Te crystal surfaces at ambient temperature and humidity was studied by means of XPS in a time range from minutes to months. Vacuum‐cleaved crystal was used for the experiment. It was found that Ge in a PbTe lattice occupies two different positions. At one of them, donor behaviour is re…
Temperature dependences of the dielectric permittivity of betaine phosphite crystals are studied both without and under application of an electric bias. It is shown that, in view of the fact that the high-temperature improper ferroelastic (antiferrodistorsive) phase transition at T c 1 =355 K is nearly tricritical, th…
LN Brewer, MA Othon, LM Young,, TM Angeliu; Misorientation Mapping for Visualization of Plastic Strain Via Electron Back-Scattered Diffraction, Microscopy
The crystal structure of priceite, data and refined to Rwp = 0.042 and Rp = 0.030 using the Rietveld method. The monoclinic structure was refined in space group P21/c, a 11.623(1), b 6.976(1), c 12.350(1) Å, β 110.70(1)°, V936.72(1) Å3, Z = 4. The structure consists of infinite chains of pairs of borate rings that ext…
Abstract. The mechanical alloying behavior of magnesium with some transition and non-transition elements has been investigated. The structural changes during mechanical alloying were monitored by X-ray diffraction analysis. Mechanical alloying of Mg with transition metals V or Nb does not form alloys, and the solubili…
An electron-spin-resonance study of ferrimagnetic MnCr2S4 single crystals revealed a positive cubic magneto-crystalline anisotropy at temperatures below the Curie temperature TC (64.5 K). A large difference (∼2.5 kOe) was found between the resonance fields for the 〈001〉 and 〈111〉 axes at 4 K. The anisotropy constants…
Abstract Boron nitride thin films have been deposited on silicon by tuned substrate r.f. magnetron sputtering from a sintered hexagonal BN target using a mixture of Ar (90%) and N 2 (10%) as sputtering gas at different substrate bias conditions. The deposited films have been characterized by Fourier transform infrared…
Abstract Dynamic segregation phenomena were revealed by XPS during the oxidation of some ferrites (Fe 2.5 Ti 0.5 O 4 , Fe 2.5 Ni 0.5 O 4 , Fe 2 CrO 4 and FeCr 2 O 4 ). This kind of phenomenon induces, at a low temperature (below room temperature), drastic changes in the cationic composition of the most external layers…
This paper reports on an EPR study of LaAl1−x NixO3 solid solutions with x≤0.12 made in the 4.2-to 300-K temperature range. In the X range, the broadening of the single EPR line with g eff=2.148 was observed at temperatures below ∼40 K. In the Q range, a slightly anisotropic EPR line with g ⊥ ′ =2.145±0.002 and g ‖ ′…
A new analysis of electronic transport in chalcogenide glasses, based on bipolaron hopping in the extended pair approximation, is presented. It is assumed that the relaxation time of the carrier when hopping has a Meyer-Neldel type of temperature dependence instead of a simple activated form. In this way, the experime…
Hydrogen permeation through steel plate maintained at various constant temperatures between 20 and 500°C was investigated using the hydrogen collection method. Fused salts were employed at elevated temperatures. Hydrogen entry was induced by step changes in cathodic charging current density. Emanating flux transients…