Materials Literature
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Quantitative mechanical analyses by nano indentation were performed for two types of ferritic heat-resisting steel that contained 12mass% chromium and 2mass% tungsten (12Cr-2W). One of the 12Cr-2W with a superior creep-fatigue property showed transgranular fractures, whereas the other steel with an inferior creep-fati…
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Metal-ceramic materials are characterized by high mechanical and tribological properties. The surface treatment of the composite by an electron beam in inert gas plasma leads to a qualitative and quantitative change in its microstructure as well as to a change in mechanical properties of the components: a columnar str…
Design and fabrication of the scaffold is an important part of the tissue engineering process. Nanofibrous scaffolds based on proteins are gaining increasing acceptance due to its structural similarity to the extracellular matrix. Making use of the electrospinning technique, rat tail collagen type I nanofibers were pr…
The deposition of nanostructured Zr-Y-O/Si-Al-N-based coatings was implemented by the pulse magnetron methods. The structural-phase state of the nanostructured coatings was studied with TEM and X-ray analysis. The phase transformation in Zr-Y-O layer was observed with the X-ray diffraction analysis in the “in-situ” mo…
Nowadays many industrial sectors, as automotive or aeronautic industry, use forming processes in order to produce sheet metal components.The most widely used are the stamping process and deep drawing, based on big and costly dies and presses.A specific application, the Single Point Incremental Forming (SPIF), for shee…
This paper reviews our study on in-field superconducting properties and thermally activated vortex motion (creep) in BaFe2(As1-xPx)2 (Ba122:P) thin films with BaZrO3 nanoparticles fabricated on a MgO single crystal using pulsed laser deposition (PLD). We demonstrated that introducing controlled uniformly dispersed BaZ…
Sympathetic inrush is a magnetizing inrush phenomenon generated in an in‐service transformer, when a nearby transformer in series or in parallel is energized. This phenomenon lasts longer than the general inrush and can cause protection maloperation. The study focuses on sympathetic inrush in series transformers. Flux…
In this work computational calculations ab initio were performed to determine the relative stability, the structural and electronic properties of manganese nitride MnN. The calculations were made in the structures NaCl, Zincblenda, CsCl and wurtzita; using the method increased plane waves and linearized in the full po…
製鋼スラグからセシウム（I） を吸着する吸着材を創製した．メタケイ酸ナトリウムを含む水酸化ナトリウム水溶液を用い還流条件において製鋼スラグを処理することにより，製鋼スラグにセシウム（I） に対する吸着能が発現した．処理条件（メタケイ酸ナトリウムの濃度及び水酸化ナトリウムの濃度）が及ぼすCs(I)吸着能力への影響を検討した．創製した吸着材のキャラクタリゼーションをX線回折分析（XRD），蛍光X線分析（XRF）及び走査型電子顕微鏡（SEM）を用いて行った．セシウム（I） の吸着はスラグ表面に形成したケイ酸起源の堆積層によって生じた．
The oxide-ceramic coating based of zirconium oxide is formed by the method of microplasma oxidation. The producing modes of the oxide layers on E110 zirconium alloy are under testing. It was found that using microplasma treatment of E110 zirconium in aluminosilicate electrolyte makes possible the formation of porous o…
Experiments from previous work performed at Chalmers University of Technology have shown tendencies for high NOX reduction during oxy-fuel combustion of propane at feed gas oxygen concentrations in the range 35 to 40 vol. %. In recent experiments the same tendency has been observed also for oxygen enriched air combust…
The aim of the present work is to develop a high-performance composite using biomimetic approaches that will exploit the interactions between two biopolymers, cellulose and xyloglucan, and these interactions play an important role but still not fully understood in the biomechanical properties of primary plant cell wal…
The scattering properties of metamaterial-based asymmetric two-dimensional open resonators excited by an electric line source are investigated analytically. The resonators are, in general, composed of two infinite and concentric cylindrical layers covered with an infinitely thin, perfect conducting shell that has an i…
Object and purpose of research.The object of this study was monocrystallic alloy SLZhS5-VI marketed as resistant against heat and corrosion. Subject matter and methodsThe materials for this study were the data of the corrosion tests performed in the atmosphere that simulated the one in the air-gas channel of marine ga…
Equipment of a thermal power plant is subjected to high temperature oxidation and wear. This raises operating costs through frequent repair of worn parts and high metal consumption. The paper proposes a possible solution to this problem through arc spraying of protective coatings. Cored wires of the Fe-Cr-C basic allo…
The prevention of sensitization by delta-ferrite in austenitic stainless steel weld metal was investigated from a point of view of the required fraction of delta-ferrite to prevent in weld metal containing not low carbon. Intergranular corrosion test in copper-copper sulfate solution was conducted using the 20%Cr-11/1…
Friction is a complex dynamic process. Direct observation of processes occurring in the friction zone is impossible due to a small size of a real contact area and, as a consequence, requires various additional methods applicable to monitor a tribological contact state. One of such methods consists in the analysis of a…
Higher superconducting transition temperature Tc is achieved in longer Cu-Cu bond distance samples. In this study, indium-based cuprate compounds with long Cu-Cu bond distance were prepared via solid-state reaction. The parent compound InBa2CuO4.44 is not electrically conducting due to the lack of oxygen ions in the C…
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