Materials Literature
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Duplex stainless steels (DSS) are one of the modern stainless steels. Their name comes from their duplex microstructure, which contains about equal proportion of austenite and -ferrite. DSS are typically alloyed with chromium, nickel, manganese, molybdenum and nitrogen and contain low carbon. Their excellent corrosion…
Dredging harbors and rivers are necessary to maintain the appropriate water depth for navigation. However the disposal facilities for storing dredged materials around the U.S. Great Lakes are at or near their capacities and finding beneficial uses for these materials is a major concern. On the other hand, carbon emiss…
To better understand the properties of polycrystals at a microscopic scale during cyclic mechanical loading we have measured the relationship between grain orientations, their positions inside the sample and their internal stresses. In this work, in-situ 3DXRD technique was performed on over hundred grains during the…
A knowledge-based approach towards developing a new generation of solar energy conversion devices requires a fast and direct feedback between sophisticated analytics and state-of-the-art processing/test facilities for all relevant material classes. A promising approach is the coupling of synchrotron-based X-ray charac…
Optical compensation of flexible in-plane switching (IPS) mode liquid crystal display (LCD) using polycarbonate substrate with uniaxial optical anisotropy was achieved for wide viewing angle. We theoretically clarified that the slow axis of plastic substrate must be parallel to the absorption axis of polarizer and ali…
A method of measuring in-situ magnetic field gradient is proposed in this paper.The magnetic shield is widely used in the atomic magnetometer.However,there is magnetic field gradient in the magnetic shield,which would lead to additional gradient broadening.It is impossible to use an ex-situ magnetometer to measure mag…
A straightforward galvanic displacement reaction was adopted to synthesize structurally novel rectangular Cu nanotubes. This 1D nanomaterial displayed excellent field emission properties and a favorable catalytic effect in the degradation of methylene blue in H 2 O 2 solutions.
The growth of epitaxial ZnO film with a c -axis orientation on a patterned GaN/sapphire substrate using a two-step hydrothermal (HT) process is demonstrated. Honeycomb arrays of etched holes were formed on the GaN epilayer to unveil m -plane for the synthesis of ZnO crystallites with a lattice mismatch of 0.4% along c…
Arsenic can diffuse into high-κ dielectrics during GaAs-based metal oxide semiconductor transistor process, which causes the degradation of gate dielectrics. To explore the origins of the degradation, we employ nonlocal B3LYP hybrid functional to study arsenic related defects in ZrO 2 . Via band alignments between the…
Quenching as a heat treatment method is commonly used to control the mechanical properties of steels. This article deals with the modelling and simulation of quenching of steel chisel using a multi -phase model. The process of the heat treatment is non stationary phase due to temperature variation with time. In this s…
The air flow field of the drawing conduit in the spunbonding process has a great effect on the polymer drawing, the filament diameter and orientation. A numerical simulation of the process is carried out, and the results are compared with the experimental data, showing good accuracy of the numerical prediction. This r…
MnCo2O4/Au was investigated as an electrocatalyst for the oxygen reduction and evolution in alkaline media. Polarization curves showed an unprecedented activity for the oxygen reduction due to a synergistic effect between MnCo2O4 and Au, involving CoII/CoIII-MnIII/MnIV, as revealed by in situ X-ray absorption near edg…
Fibre supercapacitors were designed and manufactured using a dip-coating method. Their electrochemical properties were characterized using a VersaSTAT 3 workstation. Chinese ink with a fine dispersion of carbon and binder was coated as the electrode material. The specific capacitance per unit length of a copper fibre…
This paper analyzes theoretically and numerically the refraction phenomenon of detonation wave at the explosive-metal interface, motivated by the problem that there exist large discrepancies between the experimental results and the classical shock polar theory. After pointing out the major defects of the classical sho…
Recent theories have revealed topological differences between one-dimensional (1D) Heisenberg antiferromagnets (HAFs) with odd and even integer spins (S). With this renewed interest, we have investigated the low-field magnetic susceptibility, specific heat, and high-field magnetization of single-crystal samples of MnC…
With the emergence of smart textiles, the research into textile-based sensors has increased as well. These sensors have the advantage of being flexible, and compatible with clothing thus more unobtrusively integratable and more comfortable to wear. On the other hand, one of the purposes of clothing is to enhance the t…
Wzrost zainteresowania wykorzystaniem roznorodnych nanomaterialow w technologii, przemyśle, medycynie i zyciu codziennym skutkuje zwiekszeniem ich produkcji, a w konsekwencji emisji do środowiska naturalnego. Ze wzgledu na liczne doniesienia o negatywnym wplywie nanocząstek na komorki drobnoustrojow, roślin i zwierząt…
Fe 2 SiO 4 @C nanocomposites are prepared via a solid state reaction by controlling different calcinating temperature (600 C 700 C and 800 C) under the flow of nitrogen gas. XRD analysis indicates that a typical -Fe 2 SiO 4 phase is detected in the Fe 2 SiO 4 @C nonocomposites calcinated at 700 C and 800 C. SEM result…
Starch is one of the most abundant polysaccharides found in nature and is widely utilized in various fields of industry. Due to the complex structure of native starch it is insoluble in most organic solvents and needs modification prior utilization. In this study, ionic liquids (ILs), modern green chemistry alternativ…
The presence of hydrogen in iron alloys leads to an impairment of mechanical properties. This can be related to the production routes and material processing. Microsegregations, grain size and surface finishing play a very important role on the ductility response in hydrogen. Particularly, a more homogeneous distribut…