Materials Literature
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The addition of nonmagnetic Ga into body-centered cubic Fe enhances the magnetostriction constant λ100 over tenfold. Literature reports for substitution of Ge at low concentrations suggest that the addition of Ge also enhances the magnetostriction. In this work, the magnetostriction and microstructure of Fe–Ge were in…
Remarkable nonlinear conductivity is observed in the organic conductor (MDT-TS)(I2Br)_{0.420} (MDT-TS: 5H-2-(1,3-diselenol-2-ylidene)-1,3,4,6-tetrathiapentalene) below the metal-insulator transition at 30 K. This compound is characterized by the incommensurate donor and anion columns, and the non-Ohmic behavior is ass…
An amphiphilic tris(dibenzoylmethanato)europium(III) (Eu(DBM)(3)) coordinated P(MMA-co-EIPPMMA)-co-P(NIPAAm-co-NDAPM) copolymer was synthesized, which exhibited good biocompatibility and emitted strong red luminescence (MMA, methyl methacrylate; EIPPMMA, 4-(1-ethyl-1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenyl meth…
Abstract A two‐level factorial experimental design was used to examine the combined effects of o‐MMT gallery polarity, surface modification of MDH, MA‐ g ‐PP and antioxidant addition, together with processing variables, on the burning behaviour and thermal stability of ternary composites based on PP, MDH and o‐MMT. Re…
Magnetic properties and microstructure of directly quenched Nd9.5Fe75.5−xMxB15 (M=Mo, Nb, Ta, Ti, V, and Zr; x=0–4) bulk magnets in rod form with a diameter of 0.7mm have been studied. The substitution of the selected refractory elements for Fe in the Nd9.5Fe75.5MxB15 alloy can suppress the formation of the soft phase…
Abstract This study makes use of electrospinning to produce epoxy polymer ultrathin fibers. Those fibers were collected as nonwoven sheets with various thicknesses. The collected ultrathin fibrous sheets (UFS) were incorporated into ply interfaces of a glass/epoxy composite laminate. End‐notch flexure (ENF) specimens…
Abstract In this study, the tensile behavior of different natural fiber reinforced composite materials were analyzed. The statistical analysis used to study the natural fibers in the first article, has been extended to analyze the behavior of PP‐matrix composites, combining the probability density function estimation…
Abstract The intercalated thermoplastic polyurethane (TPU)/montmorillonite (MMT) nanocomposites were prepared by melt blending TPU and organic octadecylammonium‐treated MMT (ODA‐MMT) at 150–155°C for 10 min. Compared with those of TPU/montmorillonite composites, the interface interaction and dispersion of TPU/ODA‐MMT…
Abstract In this study, acrylonitrile–butadiene–styrene (ABS) and polyamide‐6 (PA6) were blended in the presence of an olefin‐based compatibilizer and organoclays. The effects of ABS to PA6 ratio, clay content, and screw speed of the microcompounder were examined by performing morphological (i.e., XRD, SEM, and TEM) a…
The role of hysteresis on materials with giant magnetocaloric effect (GMCE) was pointed out by comparing isothermal entropy change measured on a Ni55Mn20Ga25 single crystal presenting a first order magnetostructural phase transition. The entropy change is determined by a laboratory Peltier calorimeter with magnetic fi…
Abstract To study the effect of a surfactant on the properties of polyaniline (PANI)/metal oxide composites, PANI/lead titanate (PbTiO 3 ) composites were synthesized with different weight percentages (10, 20, 30, 40, and 50 wt %) of PbTiO 3 in both the absence and presence of dodecylbenzenesulfonic acid (DBSA) by the…
Abstract Modern engineering science and nanotechnology have hastened the development of high performance corrosion‐resistant coatings having a broad spectrum of effectivity under a wider range of hostile environments. The formulation of such coating systems is expected to cause a major revolution in the corrosion worl…
Nanosize polyacrylamide/silica (PAM/SiO2) composites were prepared by water- in-oil (W/O) microemulsion process. In this system, aqueous solution of acrylamide containing disperse 10 nm size silicon dioxide was used as the dispersed phase of the microemulsion while the dispersion medium was sodium bis (2-ethylhexyl) s…
Abstract Poly(3,4‐ethylenedioxythiophene)s (PEDOT) represent a class of conjugated polymers that can be potentially used as an electrode material for flexible organic electronics due to their superior conductivity and transparency. In this study, we demonstrate that the conductivity of a PEDOT containing copolymer fil…
Nanowire arrays have been used as prototypes to investigate basic issues such as size effect, shape anisotropy, and dipolar interaction on the magnetic properties. Under ideal conditions, the nanowires are approximated as perfect long cylinders. Here, coherent rotation as the magnetization reversal mode cannot complet…
The time course of self-assembly of a hybrid hydrogel system was investigated using dynamic light scattering (DLS) techniques. The self-assembling system consisted of a hydrophilic synthetic N-(2-hydroxypropyl)methacrylamide (HPMA) polymer backbone and a pair of oppositely charged peptide grafts (CCE and CCK). These t…
Abstract The effects of small molecule plasticizer of liquid acrylonitrile‐butadiene rubber (LNBR) on coordination crosslinking reaction between acrylonitrile‐butadiene rubber (NBR) and copper sulfate (CuSO 4 ) were investigated. Attenuated total reflectance infrared (ATR‐IR), curing curves analysis, equilibrium swell…
Polyacrylamide (PAAM) nano silica inclusions composites were prepared having different ratios of nano silica. The silica inclusions were either modified or unmodified. The nanocomposite films were characterized by transmission electron microscope (TEM) and infrared spectroscopy (IR). The dielectric behavior of the com…
We study the dynamics of annihilation of point defects in Langmuir monolayers. The absence of hydrodynamic effects allows us to quantitatively relate the asymmetry in defect mobility to the elastic anisotropy of the material, which in turn can be varied through the control of the surface pressure applied to the monola…
Abstract The melt grafting of glycidyl methacrylate (GMA) onto high‐density polyethylene (HDPE) in the presence of free radical initiators was investigated in the batch mixer. The graft content was determined with the titration and FTIR spectroscopy. The graft content increased with the increase of peroxide and initia…