Materials Literature
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Using DFT calculations, we have studied the size-dependent properties of (CdTe)nnano sized quantum dots (QDs) (n=1–9) in polar (water) and nonpolar (gas and toluene) environment. The stability, relative stability and reactivity of the nanocluster is explained in terms of binding energy (BE), second order energy differ…
Pure and Ce0.95Fe0.05O2 thin films have been fabricated on LaAlO3 (100) substrate using pulsed laser deposition techniques at 200mTorr oxygen partial pressure and then characterized by various techniques viz. X-ray diffraction, atomic force microscopy, NEXAFS, and dc- magnetization measurements to explore the structur…
A comparative study on thermoelectric properties of bulk La1.96Sr0.04CuO4 (LSCO) synthesized by solid state reaction (SSR) and sol-gel techniques has been performed. X-Ray diffractometer (XRD) and scanning electron microscope (SEM) has been used for micro-structural characterization of prepared pellets. The dc electri…
In the context of the design of aeronautical structures regarding accidental events, we are here investigating and comparing the shear failure of two aluminum alloys, namely AA2024 and AA7175, under high strain rate loading. With this aim in view, two experiments were carried out: (i) high strain rate shear compressio…
Carbon black (CB) is a reinforcing filler. The CB primary challenge is its tendency to form aggregates and agglomerates during the typical rubber compounding. This subsequently decreased the reinforcing efficiency. The aim of this study is to investigate an alternative method to prepare CB filled compound via CB maste…
The poly aniline (PANI) based nanocomposites filled with PbO nano material were prepared by the chemical polymerization method with various mass fractions of the aniline in acid medium with ammonium per sulfate(APS) as an oxidant. The phase was confirmed by the powder X-Ray diffraction (XRD). The SEM study shows a lum…
Enantioselective electrocatalysis of α-, β-, γ- and δ-hexachlorocyclohexanes (HCHs) by tetrakis-pentafluorophenyl-Fe(iii)porphyrin is described. The first example of the combined use of electrochemical measurements and theoretical calculations to determine the mechanism of the enantioselective C-Cl bond cleavage of th…
The use of plant fibers for low impact and durable composites development has a wellknown importance, since they are biodegradable and low cost. These fibers and their fabrics are used as reinforcement on cement based composites in order to improve their mechanical properties. However, it is important to consider the…
The paper represents resistance welding characteristics and construction features of power supplies for resistance welding. The authors give an overview of circuit topologies of converters for resistance welding and distinguish the most promising one — the transistor buck converter with a synchronous transistor. It is…
In recent years, global warming and environmental pollution caused a limitation of the use of natural energy and resource use has become more important Renewable resources. In the industrial sector, most of factories such as Ceramic tile production, glass, and cement of devices that are used for heat production of bio…
As an emerging carbon nanomaterial, carbon nanodots(CNDs) have many advantages such as low preparation cost, small size, low toxicity, high biocompatibility, good water solubility, easy modification, unique photophysical properties, and exhibit unique advantages and application prospects in the field of biomedicine. T…
Sustainable “green” nanocomposites of polylactide (PLA)/polyhydroxyalkanoates (PHA) were obtained by slit die extrusion at low temperature. Dispersed PHA inclusions were sheared and longitudinally deformed with simultaneous cooling in a slot capillary which resulted in formation of nanofibers. Shearing at shear rate 3…
Degradation of natural rubber and deproteinized natural rubber (DPNR) at 70 °C and 150 °C for 24 hours was investigated. Natural rubber was degraded at 150 °C to produce blown viscous liquid, whereas pale yellow rubber was covered with black brittle rind after degradation of DPNR at 150 °C. FT-IR, 1H-NMR and 13C-NMR m…
The research of corrosion behavior of T/P91 steel was investigated taking the case for the T/P91 steel corrosions existed during the construction process of a thermal power plant in Hunan province.The morphology change, product component and mechanical properties change were studied during the corrosion process of SO4…
A family of sarcosine–metal halide coordination polymers are presented. All have structural similarities to the well-known ferroelectric, tris sarcosine calcium chloride, though all these example have centrosymmetric crystal structures.
Integrated Dirac-cone metamaterials enable effective refractive indices near zero in the standard silicon-on-insulator (SOI) platform. We experimentally demonstrate small-footprint (≈λ/2-wide) zero-index structures in the telecom regime.
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In this paper, industrial boilers are used as the research object, and Boilerentiodynamic polarization analysis of boiler steel is used to study the electrochemical corrosion behavior in the boiler water. The electrochemical corrosion nature and morphology of the samples were tested through experiments. The study show…
The peculiarities of explosive hardening (EH) associated with the impact of the shock wave on the metal are considered. Mechanical properties of Hadfield steel after EH are given. It is shown that intermediate layer of dry sand between explosive charge and treated metal provides amplification of the shock wave. This e…
The aim of the present work was to assess an eco-friendly antibacterial finish extracted from Terminalia chebula with ethanol. The extraction is incorporated into bamboo-cotton woven fabric in the form of nanocapsules by exhaust method in order to reduce the bacterial growth on the fabric. This herbal extract was eval…