Materials Literature
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将化学共沉淀法合成的Co掺杂的Fe3O4(Co-Fe3O4)磁性粒子和化学氧化法合成的聚苯乙烯磺酸钠(PSS)掺杂的聚(3,4-乙撑二氧噻吩)(PEDOT-PSS)与聚乙烯醇(PVA)混合制备复合纺丝原液,然后经过湿法纺丝得到具有电、磁性能的PEDOT-PSS/Co-Fe3O4/PVA复合纤维. 通过SEM、FTIR、XRD、TG、VSM以及电导率和机械性能的测试研究了不同牵伸倍率对复合纤维的结构和性能的影响. 结果表明,随着牵伸倍率的增加,复合纤维的结晶性能、热稳定性能和机械性能都有所提升,其电导率则成倍增加,而其饱和磁化强度(Ms)则变化不大,约为1.7 A m2/kg. 当牵伸倍数为4倍时,复合纤维的电导率可达到2.3 S/…
The partial oxidation of He-diluted CH4 with O2 has been studied in a laboratory flow reactor packed with fragmented pellets of zeolite-encaged Ru phthalocyanine catalyst. Gas compositions (CH4, O2, CO, CO2, and H2) were determined by on-line GC/TCD. Absolute system pressure was maintained at 445 kPa. Most experiments…
Corrosion is a prevalent concern throughout the world, causing significant monetary and safety concerns. Research has been dedicated to developing cost-effective solutions for corrosion that will also meet increasingly stringent environmental regulations. The recently discovered nanomaterial graphene has been proposed…
The kinetics of Oxidation of Phenol and aniline by quinolinium Chlorochromate (QCC) in aqueous acetic acid medium leads to the formation of quinone and azobenzene respectively. The reactions are first order with respect to both Phenol and aniline. The reaction is first order with respect to quinolinium chlorochromate…
Abstract : Research has focused on discovering new oxide materials systems with novel properties and demonstrating their potential for high performance electronic applications. We have successfully developed materials with novel interfacial phenomena for defense applications in oxides and their heterostructures. Moreo…
[Excerpt] Biotechnology has become an important area for the production of smart materials under environmentally friendly conditions. On the one hand, microorganisms can produce polymers where novel strategies in biotechnology allow tuning of their composition and consequently their properties. On the other hand, enzy…
In the present research, ultrafine SiC nanoparticles were fabricated using SiC scrap, and their physical properties were optimized with a pulverization method. Their particle sizes were controlled with the pulverization time, and ultrafine SiC nanoparticles with sizes below 40 nm were achieved. Also, thick film heater…
La aleación 22 (N06022) pertenece a la familia de aleaciones Ni-Cr-Mo, su base es el níquel y tiene un alto contenido de cromo (~22%) y molibdeno (~13%). Diversos estudios muestran que la aleación 22 es resistente a la corrosión generalizada y localizada (en rendijas) en soluciones acuosas, con altas concentraciones d…
The steam-pretreatment on ordered-mesoporous carbon (OMC) catalysts was conducted to improve the catalytic properties for silicon tetrachloride (STC) to trichlorosilane (TCS) conversion. The surface area, pore size and pore volume of OMC were significantly changed as a function of pretreatment temperature. The steam-p…
Abstract : The fabrication of microscale anodes designed for in situ atomic force microscopy testing is discussed. The anodes are partially confined in a nickel thin film and contain enough active material to be successfully used with conventional electrochemical testing methods. The electrodes are characterized by Ra…
The new Mn0.95I0.02[PO3(OH)] · 2H2O phosphate–iodate (space group Pnam = Pnma, D 2 16 ) is obtained under hydrothermal conditions. The crystal structure is determined without preliminary knowledge of the chemical formula. The structure consists of layers of MnО6 octahedra connected with PO4 tetrahedra. Water molecules…
Abstract : Graphene is an excellent material for energy storage devices such as supercapacitors. Graphene can be deposited onto a substrate for device construction in multiple ways. One method is to deposit graphene oxide (GO) onto a surface and reduce it, resulting in reduced graphene oxide (rGO). There are many meth…
T his paper present the hot deformation behavior of the commercial 2014-T6 aluminum alloy. The alloy was thermomechanical processed for grains refining in order to improve deformation characteristics. The characteristics of deformation was investigated by using a uniaxial tensile testing at different temperatures (450…
This paper bestows the importance of reliable power system for proficient performance of industrial loads. As power quality is accountable for a reliable power system, therefore in this paper the power quality deteriorating aspects has been critically reviewed. While, unbalance in supply is one of the vital aspect for…
Core/shell-structured quantum dots (QDs) are considered as important active materials for optoelectronic devices. There have been a lot of synthesis procedures developed so far. Real epitaxial growth of shell layer, however, has not been reported yet. Here, a simple method for the synthesis of CdSe/CdS core/shell QDs…
Polymeric materials are increasingly used in several applications. However, their relatively high flammability presents a danger to people and property. Their use therefore requires that they are made more resistant to both the initiation and propagation of fires. \nVermiculite is a fire-resistant material which can b…
It is shown that, during the IR heating of polyphenoxazine in the presence of copper acetate monohydrate Cu(OOCCH 3 ) 2 · H 2 O in an inert atmosphere at a temperature of 250–450°C, the dehydration of phenyleneamine structures accompanied by the formation of conjugated bonds C=N and the reduction of Cu 2+ to Cu 0 by t…
A central goal of quantum information science is the entanglement of multiple quantum memories that can be individually controlled. Here, we discuss progress towards photonic integrated circuits designed to enable efficient optical interactions between multiple spin qubits in nitrogen vacancy (NV) centers in diamond.…
Abstract A polymer‐stabilized and polymer‐dispersed blue phase (PS‐PDBP) device operating at room temperature is demonstrated. The encapsulated blue phase liquid crystal droplets were formed in a polymer solution. With polymer stabilization, the blue phase temperature range of the blue phase dispersion was remarkably…
Abstract : The overall goal of this particular study was to provide proof of concept through modeling and simulation to predict the impact of a functionally graded material (FGM)-based target on the shockwaves generated from an impactor. Most armor systems are comprised of a single material or a composite layup of sev…