Materials Literature
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Here we report a transition in superelastic hysteresis loop from sharp with plateau to smooth without plateau for a Ni55−xCoxFe18Ga27 (x=0–12) alloy system with increasing Co substituting for Ni up to 10 at.%. With the Co content reaching 10 at.%, the alloy exhibits the obvious characteristic of the strain glass trans…
Three naturally occurring conjugated aldehydes, (1 R )-(−)-myrtenal, ( S )-(−)-perillaldehyde, and β-cyclocitral, were cationically copolymerized with isobutyl vinyl ether using the EtSO 3 H/GaCl 3 initiating system in the presence of 1,4-dioxane as an added Lewis base. Alternating copolymerization proceeded exclusive…
This paper presents the results of measurements of the dynamic elastic limit and spall strength under shock wave loading of specimens of the magnesium alloy Ma2-1 with a thickness ranging from 0.25 to 10 mm at normal and elevated (to 550°C) temperatures. From the results of measurements of the decay of the elastic pre…
This study presents composite electrode materials based on graphene oxide (GO) and transition metal oxide nanostructures for supercapacitor applications. Electrophoretic deposition of GO on a conductive substrate was used to form reduced graphene oxide (rGO) films through chemical reduction. The specific capacitance o…
BACKGROUND: Gelatin tannate is a mixture of tannic acid and gelatin. Tannic acid has astringent properties, due to its capacity to form protein-macromolecular complexes, as well as antibacterial and antioxidant properties. However, little is known about its anti-inflammatory properties. PURPOSE: To evaluate the anti-i…
In this study we examine two methods of enhancement of aggregation of hydrophobically modified chitosan in dilute aqueous solutions: by increasing the content of n-dodecyl substituents, favoring hydrophobic association, and by increasing the amount of added low molecular weight salt, screening the electrostatic repuls…
Diatoms are widely used in stream quality assessment due to their response to the local environment. Diatoms are also influenced by many large-scale processes and so the diatom communities of boreal streams incorporate a strong spatial component at a regional level. What is not properly known yet is whether the variat…
This article introduces a survey on the state-of-the-art and the technological progress in medium-voltage (MV) power cables for distribution systems. At present, MV cable insulation technology is characterized by a changeover from the conventional lapped-paper, paper-insulated laminated (PIL), polyvinyl chloride (PVC)…
In-filled and Fe-doped CoSb3 (In y Co4−x Fe x Sb12) skutterudites were prepared by encapsulated induction melting and hot pressing, and their thermoelectric and transport properties were examined. A single δ-phase was successfully obtained by subsequent annealing at 823 K for 24 h, but it decomposed to FeSb2 and Sb wh…
Abstract Very long ageing times, up to 8000 h at 110 °C, were achieved on printed circuit boards PCB FR4 Laminate commonly used in automotive design. This composite is fabricated from glass fiber embedded in a flame retardant epoxy resin. Ageing is performed in an oven under air atmosphere at a temperature lower than…
Scanning electron microscopy with energy dispersive x-ray spectrometry (SEM/EDS) is a powerful and flexible elemental analysis method that can identify and quantify elements with atomic numbers > 4 (Be) present as major constituents (where the concentration C > 0.1 mass fraction, or 10 weight percent), minor (0.…
We present exact results for the electronic transport properties of graphene sheets connected to two metallic electrodes. Our results obtained by transfer-matrix methods are valid for all sheet widths and lengths. In the limit of the large width-to-length ratio relevant to recent experiments, we find a Dirac-point con…
Carbon nanotubes (CNT) were grafted with polyolefin elastomer (POE) and then were coated on carbon fiber substrates to improve the reinforcing effect of carbon fiber/ Polyolefin elastomer copolymer (POE) composite(CF/POE/POE-CNT). The tensile strength and impact strength of the CF/POE/POE-CNT composites increased, sho…
The synthesized nano calcium phosphate by matrix mediated growth and controlled technique was used as nanofiller in the preparation of polypropylene nanocomposites. Nanocomposites with different filler concentrations were prepared. The content of nano calcium phosphate was varied from 1 to 3 wt% in the preparation of…
The effect of low carboxyl-functionalized multi-walled carbon nanotubes (f-MWCNTs) loading on the crystallization behavior of biodegradable poly(butylene adipate) (PBA) was studied with various techniques in this work. For the nonisothermal melt crystallization, f-MWCNTs accelerate the crystallization process of PBA a…
This work aims to show the possibility of using the integral kinetic model, which is applicable to any geometry, for general space-dependent kinetic analysis. A space-dependent kinetic analysis methodology and code were developed based on the integral kinetic model. The developed kinetic analysis code was verified by…
We fabricate planarized carbon nanotube (CNT) via interconnects using chemical mechanical polishing (CMP). The selective growth of CNT bundles in via holes and the filling of spin-on-glass into the space among the CNTs are performed, followed by a CMP process. The via resistance is reduced by post-CMP treatment and po…
The distinctive paper is devoted to correct wavelet-based multilevel numerical method of local solution of boundary problems of structural analysis. Operational and variational formulations of the problem (particularly with the use of wavelet basis) are presented. Computer-oriented algorithms of fast direct and invers…
The first part of this review summarizes methods for the syntheses of mono-, di-, and tetra-substituted glycosylated phthalonitriles, which are the main starting materials for the preparation of the corresponding glycosylated metal phthalocyanines. In the second part the preparation of symmetrically and unsymmetricall…
Metamagnetic thin films represent a promising geometry for more efficient magnetocaloric cooling applications due to a fast heat transfer. Here, we identify suitable growth conditions to obtain epitaxial Ni-Mn-In-Co films with a metamagnetic transition in vicinity of room temperature. We show that both increased subst…