Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Shape memory alloy constitutive models have been shown to accurately predict 1-D and 3-D material response under general thermomechanical loading. As with any constitutive model, however, the degree to which simulation results match experimental data is dependent on the accurate calibration of model parameters. This w…
Abstract Brackish water (BW) is used to supplement boiler feed water in SAGD processes. In Alberta, water quality from the McMurray (McM) and Grand Rapids (GR) formations typically consists of approximately 1% salinity, 750 ppm bicarbonate and 15 ppm H2S. The carbon steel (CS) piping originally used in this service ex…
Aqueous tape casting was used to produce yttria-stabilized zirconia films for electrolyte-supported solid oxide fuel cell (SOFC). Tape casting slurries were prepared varying the binder content between 20 and 25 wt%. A commercial acrylic emulsion served as binder. Rheological measurements of the two slurries were perfo…
Abstract In the United States, some spent nuclear fuel is stored in dry cask storage systems. Most dry storage systems use canisters fabricated from austenitic stainless steel. Canisters are exposed to the ambient atmosphere and literature data indicate that near regions of industrial, commercial, or agricultural acti…
Abstract Reliable operation of existing and new light water reactors over extended lifetimes of 60 - 100 years may be best achieved with improved materials, and this program is designed to evaluate candidate materials for use both in fuel cladding and structural applications. The rapid corrosion of zircaloy fuel cladd…
Abstract The present study has been conducted to investigate the electrochemistry of mild steel corrosion in mixed H2S/CO2 aqueous environments and develop an electrochemical model to simulate the experimental results. The experiments were designed to determine the effect of H2S on CO2 corrosion for short term exposur…
Abstract Sour well design is often based upon the partial pressure of the acid gases, which have most often been correlated to equivalent partial pressures in laboratory studies conducted at a much lower total pressure. This partial pressure approach is supported by industry standards, notably ISO 151561 / NACE MR0175…
Abstract There are no recognized standards for corrosion testing in dense phase CO2 with impurities. The main experimental challenge is impurity control. The concentration of water and other impurities (SOx, NOx, O2, H2S, CO, amines, glycols) is very small and the impurities are therefore consumed fast if they take pa…
Abstract With increasing environmental awareness follows demands for handling of brines that remain after use in a variety of applications. For this reason, stainless steels are being used in increasingly corrosive brine environments. The risk for corrosion in brines is associated with the chloride content, temperatur…
Abstract Within the project COORAL (German acronym for “CO2 purity for capture and storage”) studies on piping steels exposed to circulating supercritical impure carbon dioxide (CO2) have been carried out. In order to simulate the real conditions in pipelines, impurities such as carbon monoxide (CO) - 750 ppm(v), sulf…
Abstract Dissolved H2S in the produced fluid degrades the performance of Oil Country Tubular Goods (OCTG) steels by leading to Sulfide Stress Cracking (SSC). Direct material evaluation or Fit-For-Service (FFS) testing at high reservoir pressure is challenging. Alternative is to reproduce appropriate dissolved hydrogen…
Abstract Hydrogen embrittlement of precipitation hardened Ni-alloys is receiving increasing attention by the oil and gas industry. Several component failures have been imputed to this phenomenon. In this context, an R&D test program has been implemented to evaluate the susceptibility to hydrogen embrittlement of t…
Abstract The effect of processing, microstructure and composition on the oxidation behavior and mechanical properties of UNS(1) N07718 fabricated by additive manufacturing (AM) using the electron beam melting (EBM) process was evaluated and compared with properties of wrought UNS N07718. Material was evaluated in thre…
Thermoelectric effects in a quantum dot coupled to the source and drain charge reservoirs are explored using a nonequilibrium Green's functions formalism beyond the Hartree-Fock approximation. Thermal transport is analyzed within a linear response regime. A transition from Coulomb blockade regime to Kondo regime in th…
Results from first principles density functional theory (DFT) calculations and classical molecular dynamics (CMD) simulations are presented on moire-corrugation of graphene (gr). We find that the moire-corrugated graphene could be surprisingly stable against the perfectly flat gr-sheet as pointed out by CMD simulation…
Flat crystal ZnO thin films were prepared by chemical bath deposition technique onto glass substrates. XRD patterns of the films deposited at about 80 °C and annealed at 200 °C for 1 h in oxygen environment revealed the existence of polycrystalline hexagonal wurtzite phase with c-axis orientation of crystallites in th…
In this paper we present our recent studies on the crystal, magnetic and dielectric properties of the β-NaMnO<sub>2</sub>. Experimental results of neutron powder and electron diffraction combined with measurements of the dielectric permittivity suggest that the β-ΝaMnO2 is an excellent candidate for studying the…
The retention of nanocrystallinity in dense ceramics is still a challenge, even with the application of stress-assisted methods like Spark Plasma Sintering. Starting powder and sintering process strongly affect the evolution of the microstructure and thus, the final properties of ZnO. Control of the microstructure was…
In this paper we analyze the optical and transversal magnetooptical (MO) response of magnetoplasmonic (MP) nanostructures. The MP structure is a 1D periodic gold grating fabricated by lift-off technique on the MO dielectric substrate (Bi-substituted yttrium iron garnet Bi<sub>x</sub>Y<sub>3−x</sub>Fe<sub>5</sub>O<sub>…
Graded junction, carrier energy and momentum engineering concepts have been utilized to realize a high intensity 100 nW 5GHz Silicon Avalanche based LED (Si Av LED). A silicon 0.35 micron RF bi-polar process was used as design and processing technology. Particularly, the carrier momentum and energy distributions were…