Materials Literature
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The paper reports the designing of PEDOT grafted PU foam by in-situ emulsion polymerization of ethylene dioxy thiophene (EDOT) on polyurethane foam (PU) containing multi-walled carbon nanotube (MWCNT) and by coating PEDOT on PU foam and to study their antistatic and electromagnetic shielding behavior. Static decay tim…
The carbon nanotubes (CNTs) and CNTs doping with Fe based composites were rapid fabricated by gaseous detonation decomposition of oxygen, benzene and ferrocene mixed precursors. A series of novel experiments were designed to investigate the condensation and formation of carbon structural nanomaterials. The TEM, EDS, E…
RESUMO A adição de fibras naturais a uma matriz de polímero biodegradável tem sido uma alternativa para obter compósitos com melhores propriedades térmicas e mecânicas. Tendo em vista que as propriedades dos compósitos possam ser influenciadas pelas condições de processamento, tipo e concentração da fase dispersa, est…
Recent experimental studies have shown that ferroelectric nanoparticles play an important role on smectic liquid crystals. These include the weakly discontinuous nature of the isotropic-smectic-A transition, the decrease of the temperature metric discontinuity, the decrease of the dielectric constant and a slight incr…
The aim of this research is to investigate the alkali treatment influence on tensile strength physical and mechanical properties of agel leaf fibers (ALF). The presence of surface impurities and the large amount of hydroxyl groups make plant fibers less attractive for polymeric materials reinforcement. ALF were subjec…
Adsorption properties of the polymer fibers are studied. It is shown that polypropylene fiber can be successfully applied for oil spill response for filtration purification of water from hydrocarbons. Polypropylene fibers from waste polymers have higher characteristics of adsorption capacity and degree of purification…
Abstract Undoped and Fe doped ZnO films of different molarities deposited by spray pyrolysis method using zinc nitrate and ferric chloride as precursors show polycrystalline nature and hexagonal wurtzite structure. Crystallite size decreases with an increase in dopant concentration from 0 at.% to 3 at.%. Doping improv…
Composite nanofibers from poly(vinyl alcohol) (PVA) and multiwall carbon nanotube (MWCNT) were prepared by electrospinning technique. The contents of MWCNT were varied from 2-10 wt%. Since MWCNT aggregation has been easily occurred, surfactant was introduced for good dispersion of MWCNT in PVA/MWCNT composite nanofibe…
The paramagnetic fluctuations are investigated in La(Fe0.88Si0.12)13. The disordered local moment (DLM) is represented by the first principle calculations. With a reduction of the volume, the DLM amplitude decreases gradually. In the temperature dependence of electrical resistivity ρ under hydrostatic pressure, an upt…
Here, we examine the electromagnetic (EM) energy coupling and hybridization of plasmon resonances between closely spaced concentric nanoshells known as “nanomatryoshka” (NM) units in symmetric and antisymmetric compositions using the Finite Difference Time Domain (FDTD) analysis. Utilizing plasmon hybridization model,…
We report on the transport properties of hybrid devices obtained by depositing graphene on a LaAlO3/SrTiO3 oxide junction hosting a 4 nm-deep 2-dimensional electron system. At low graphene-oxide inter-layer bias, the two electron systems are electrically isolated, despite their small spatial separation. A very efficie…
Precise control of the growth of III-V materials by hydride vapor phase epitaxy (HVPE) is complicated by the fact that the growth rate depends on the concentrations of nearly all inputs to the reactor and also the reaction temperature. This behavior is in contrast to metalorganic vapor phase epitaxy (MOVPE), which in…
Well-dispersed exfoliated white graphene (h-BN) nanosheet in transformer oil was prepared at various weight percentages. The nanofluid transformer oil showed excellent stability over long time duration and significant improvement of thermal conductivity (>45% for 0.05 wt.%)due to large surface area and high thermal co…
The effects of TiO 2 on sintering and nonlinear electrical properties of (98.5 − x )ZnO–0.5MnO 2 –0.5Co, 2 O 3 −0.5Bi 2 O 3 – x TiO 2 ( x = 0.3, 0.5, 0.7, 0.9 mol%) ceramic varistors prepared by the ceramic technique are investigated in this work. The optimum sintering temperature of the prepared samples is deduced by…
Abstract Objective: The aim of this study is to investigate the in vitro cytotoxicity and iNOS (inducible nitric oxide synthase) inhibitory, and antioxidant activity in order to assess the traditional usage of Liquidambar orientalis Mill resin extract. Methods: Different solvent extracts of Liquidambar orientalis Mill…
Abstract We report the design of erodible ‘mixed multilayer’ coatings fabricated using plasmid DNA and combinations of both hydrolytically degradable and charge‐shifting cationic polymer building blocks. Films fabricated layer‐by‐layer using combinations of a model poly(β‐amino ester) (polymer 1) and a model charge‐sh…
An automatic equal phase shift principle (AEPS) is proposed to simplify space charge detection under periodic stress with the pulsed electroacoustic method. For pulse frequency, fpis a non-integral multiple with periodic stress frequency fa; the detecting phase can be automatically shifted with a certain value after e…
Severe degradation of HV bushings may derive in violent explosions and cause extensive damage to adjacent equipment, power outages, soil contamination, and injuries to personnel working in the proximity. The use of non-destructive and non-intrusive methods to diagnose the overall condition of the insulation system is…
The Power-to-Liquid (PtL) concept offers the potential to interlink the power and fuel market by producing high quality fuels from electricity and CO2. In addition, gaseous by-products from fuel synthesis can be used to generate electricity in peak load hours. In this work, a PtL concept comprising of a reversible sol…
In this study, the effect of pressure on undoped and 5% yttrium-doped SrZrO 3 (SZY0 and SZY5) were conducted from the ambient condition to ∼ 25 GPa with a diamond anvil cell. The comparison of the high-pressure Raman spectra of SZY0 and SZY5 indicate that SZY0 displays a rigid structure without any structural modifica…