Materials Literature
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In this paper, we have employed a novel method to realize magnetic property from an organic polymer. An antiferromagnetic, inorganic material Cr2O3 added with a well promising Polyaniline was synthesized and the effect of Cr2O3 and its concentration on the properties of polyaniline was investigated. Cr2O3/PANi was syn…
A simple method to fabricate low-scattering holographic polymer-dispersed liquid crystal grating is proposed. The optical efficiencies of the grating are tested. The results show that the scattering losses are almost totally suppressed, at less than 0.25%, and the diffraction efficiency of the grating reaches as high…
A novel strategy for the simultaneous reduction and functionalization of graphene oxide (G-O) was developed using polyallylamine hydrochloride (PAAH) as a multi-functional agent. The G-O functionalization by PAAH was carried out under basic conditions to catalyze the epoxide ring opening reaction of G-O with abundant…
Abstract A series of polysulfone/phenyl trisilanol POSS nanocomposites were produced by melt blending by twin screw batch mixing. These materials were then injection molded, and their thermal, mechanical, and morphological properties were tested. The tensile properties of polysulfone were moderately compromised by the…
The effect of phosphate on the tribocorrosion of aluminium D16T (AA 2024 equivalent) alloy in synthetic acid rain was studied. It was established that an extract of modified zinc phosphate increases the resistance of aluminium alloy to corrosion and mechanical wear, which is confirmed by the reductions in its polarisa…
Abstract The synthesis of magnetic core–shell nanoparticles consisting of magnetite cores surface‐functionalized by glycolic acid covered by polylactic acid was performed by applying the “grafting‐from” strategy, where the polymerization is initiated from the particle surface. The surface initiated ring‐opening polyme…
Composites containing various percentage of durian seed flour (DSF) in the polypropylene (PP) and high density polyethylene (HDPE) have been compounded using an internal mixer. The processing torque, tensile, thermal and biodegradation properties have been determined. The incorporation of DSF increases stabilization t…
Abstract Hydroformylation of methyl soyate produces a mixture of fatty acid methyl esters with zero, one, two, and three hydroxyl groups, the major component being with two hydoxyls (around 50%). Polymerization of methyl esters of hydroxy fatty acids gives a hyperbranched product with a different content of hydroxyl g…
The variations of electrical property of an ultralight conductive carbon nanotube/polymer composite foam upon compression were investigated. It was found the sharp increase of volume resistivity and strain was generated by the same microstructural change, i.e., the damage of foam struts. Even the strain was increased…
The ideal tensile and shear strengths of binary $\ensuremath{\beta}$-phase Ti${}_{3}$Nb alloys have been investigated using ab initio density functional calculations. The binary alloy is considered as an approximant to the multifunctional Ti-Nb-Ta-Zr-O alloy known as ``gum metal,'' which displays high strength, low el…
In this work, expanded graphite (EG)-reinforced poly(ethylene terephthalate) (PET) nanocomposites were prepared by the melt mixing method and the content of the EG was fixed as 2 wt%. The effect of multi-walled carbon nanotubes (MWCNTs) as a co-carbon filler on the electrical and mechanical properties of the EG/PET wa…
Abstract Morphology and linear viscoelastic properties of PA/PE/Clay blend nanocomposites with and without compatibilizer (PE‐ g ‐MA) with PA as a matrix phase were studied. Using rheological and XRD analyses, it was shown that the clay exhibited higher dispersion in PA/PE blend than that in pure PA. It was attributed…
The ferromagnetic core of power transformer is susceptible to dc bias and has special nonlinear and hysteretic characteristics under dc-biased magnetization. The dc-biasing magnetization curve of a square laminated core (SLC) can be obtained by dc bias test. The harmonic-balanced finite-element method (HBFEM) combined…
Synchrotron-radiation angle-resolved photoelectron spectroscopy has been utilized to examine the bulk valence-band structure of anatase TiO${}_{2}$(001) thin films fabricated on LaAlO${}_{3}$(100) by pulsed laser deposition. The energy-momentum dispersion relation of O 2$p$-derived nonbonding, O 2$p$-Ti 3$d$ $\ensurem…
A finite element method, which directly uses the node electric scalar potentials and node charge densities as variables, is used to predict the electric field and charge density distributions under polarity reversal (PR) voltage. The penalty method is adopted to impose the Dirichlet boundary values and the Crank-Nicol…
SUMMARY Hybrid buckypapers (HBP) were developed and showed potential as efficient fire‐retardant materials by implementing multiple fire retardance mechanisms. The fabrication of HBP was performed using multi‐walled carbon nanotubes (MWCNTs) and magnesium hydroxide (Mg(OH) 2 ) nanoparticles. The Mg(OH) 2 nanoparticles…
The self-assembly of a neutral meso-methoxyphenylporphyrin functionalized with a dipeptide glycilglycine substituent (MGG) in water and in water-ethanol mixtures was studied by absorption and fluorescence spectroscopy. In water, hydrophobic interactions and the noncovalent intermolecular hydrogen bonding between the t…
316L stainless steel in environments with high chlorine content suffers localised corrosion. In this study, hybrid sol–gel based anticorrosive protective coatings were developed and deposited on 316L stainless steel substrates. The effect of incorporating different compositions of silica in polymethylmethacrylate (PMM…
The soft magnetic composite material has merits of the low eddy current loss and the flexible machine design and assembly. This paper develops new brushless DC motors made of this material. The shape of the developed motor is similar to a hybrid type stepping motor, which utilizes three-dimensional isotropic ferromagn…
Abstract This study deals with the role of the different substrates on the microstructural, optical and electronical properties of TiO 2 thin films produced by conventional direct current (DC) magnetron sputtering in a mixture of pure argon and oxygen using a Ti metal target with the aid of X–ray diffractometer (XRD),…