Materials Literature
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Various ZnN y Ni 3− x Co x compounds with differing Co content, x , were synthesized, and their magnetic properties were investigated. Uniform solid solutions could not be obtained at low Co content (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mrow><mml:mi>x</mml:mi><mml:mo><</mml:mo><mml:…
The article is deals for new experimental equipment for effective test adhesion for selected coating STEEL, applied cold on the coated metal sheet with Al (aluminum). Explanation to the word STEEL: STEEL coating has significant anti- corrosive properties and he is resistant for main oxidizing agents such as acids, alk…
Vapor-deposited hexanitroazobenzene (HNAB) has been shown to form an amorphous structure as-deposited that crystallizes over a period ranging from several hours to several weeks, depending on the ambient temperature. Raman spectroscopy and x-ray diffraction were used to identify three distinct phases during the crysta…
Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique Z Lazarevi, S Kosti, V Radojevi et al. - Investigation of defect levels in Bi 12 SiO 20 single crystals by thermally stimulated current measurements M Isik, S Delice and N M Gasanly - Light diffraction from volume phase holo…
P-type higher manganese silicides (HMS) thermoelectric (TE) materials are very promising candidates for high temperature power generation application due to their low cost, environmental-friendliness and high reliability. In this paper, recent development on synthesis and thermoelectric properties of bulk HMS are revi…
The application of a thermodiffusional vanadium coating to high-strength cast iron is considered. The rational vanadium content in the powder batch is determined. The wear resistance of vanadium-coated cast-iron gears is tested.
For portable applications, a fuel cell often experiences frequent startups and shutdowns. Therefore the startup and shutdown behaviors are critical to a portable solid oxide fuel cell (SOFC) and SOFC system. Startup characteristics of four propane-fueled hot zones were investigated. The hot zones were able to be start…
Terpolymeric resin was prepared from m‐cresol (0.1M), hexamine (0.05M) and formaldehyde (0.2M) by acid catalyzed polycondensation method using 1M HCl in temperature range of 122‐130°C.The resin was abbreviated as m‐CHF‐I. The molecular weight of terpolymer was determined by non‐aqueous conductometric titration techniq…
New macromonomers based on poly(trimethylene carbonate) (PTMC) were designed and synthesized under precisely controlled conditions using conventional ring-opening polymerization (ROP) techniques. We found that PTMC was connected via the hydroxyl group of N-hydroxyethyl acrylamide (HEAA) or 2-hydroxyethyl acrylate (HEA…
LaLnO3 (Ln = Dy, Ho, Y, Er, and Yb) and La(Ln, Ln’)O3 (Ln, Ln’ = Dy, Ho, Er, and Yb) systems were synthesized by solid state reaction method and characterized by X-ray diffraction. When Ln = Er or Yb which has smaller ionic radius than that of Y3+ (0.900 Å), the LaLnO3 showed an orthorhombic perovskite structure, whil…
Water cleaning effect was investigated for iron-containing silicate glass. A leaching test for 10 days using 500 mL of simulated waste water and 2.0 g of 0.5x(Na2O⋅CaO)⋅5Fe2O3⋅(95−x)SiO2 glass (20 ≤ x ≤ 50), abbreviated as xNCFS glass, resulted in a remarkable decrease in chemical oxygen demand (COD) from 290 to 26.7…
ZnO thin films were synthesized in a new method which uses Polyvinyl Alcohol (PVA) as polymer precursor. The films are annealed at different temperatures to study the effect of post thermal annealing on the structural and optical properties of grown films. It was found that all the films possess tensile strain which i…
The paper describes a new transducer dedicated for evaluation of a duplex stainless steel (DSS). Different phases which exist in DSS have influence on mechanical as well as on electrical properties. Therefore, an eddy current transducer was utilized. In order to achieve high sensitivity, a differential type of the tra…
Nominal composition of Zr–Ni co-doped Ba2Co2Fe12−2x(Zr,Ni)xO22 (x = 0.2–1.0) Y-type hexaferrites were synthesized by conventional sol–gel and microwave heating methods. Structural analysis was carried out by TGA, SEM, XRD, O2-TPD and BET surface area. Microwave synthesized samples revealed good morphological propertie…
The temperature dependence of structural relaxation time in drawn polyethylene terephthalate glycol and polyethylene terephthalate has been studied. A transition from fragile to strong behaviour is observed in drawn polyethylene terephthalate, which can be related to the decrease of Cooperative Rearranging Regions in…
The swelling dynamic and epoxy resin structure changes of nanosilica (NS) with different specific surface in concentrated nitric acid were studied. It is established that with increasing of specific surface area of unmodified NS swelling degree decreases and stability of the composite in the acid goes up. Resistance o…
In this work, a model for energetic hardening due to deformation incompatibility at large deformation is formulated in the context of continuum thermodynamics and extended crystal plasticity. In particular, this is carried out using a rate variational approach for the corresponding initial boundary value problem. This…
This article demonstrates the textile potential of Agave vera-cruz L. fiber. It deals with the extraction of fiber from Agave vera-cruz Mill leaves, analyzing its chemical composition such as cellulose, lignin, wax, ash, and moisture content. Physical properties such as fiber length, density, and their mechanical beha…
Abstract The silicon nitride/diamond-like carbon composites were fabricated using co-deposition sources. The RF magnetron was used to deposit silicon nitride simultaneously with cathodic arc deposition of carbon. The condition of RF magnetron sputtering for silicon nitride was fixed at 0.6mTorr, RF power 200 watts and…
Active precursor powders of MgO-ZrO2 composite system were prepared in three different mole ratio by electrolytic interaction of inorganic salts in aqueous phase. Complete hydrolysis occurred at the critical instability point of the system at pH 9. The amorphous precursor powders exhibited very high specific surface a…