Materials Literature
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This study describes the design and evaluation of a compensating algorithm for the secondary voltage of a coupling capacitor voltage transformer (CCVT) in the time domain by considering the hysteresis characteristics of the core. The major error of the CCVT is the voltage across the capacitor and the tuning reactor ca…
Depending on the part type and quantity, fabrication of composite structures using vacuum-assisted resin transfer molding (VARTM) can be more affordable than conventional autoclave techniques. Recent efforts have focused on adapting VARTM for the fabrication of high temperature composites. Due to their low melt viscos…
Abstract Laponite RDS (Laponite containing pyrophosphate based peptizer) was modified with cetyl trimethyl ammonium bromide (cLS) and dodecylamine hydrochloride (dLS), respectively. Thermoplastic polyurethane (TPU)‐modified Laponite RDS nanocomposites were prepared by solution mixing technique. Morphologies of these t…
We report the synthesis and characterization of two series of novel triphenylene-based benzene-bridged symmetric discotic dimers. Two triphenylene discotics have been connected to a rigid benzene ring via flexible methylene spacers. In one series, triphenylene moiety was tethered with benzene via an ester linkage, whi…
Abstract Polylactide stereocopolymer multifilament fibers were prepared by wet spinning and subsequent hot drawing. The stereocopolymers were poly‐( L,D ‐lactide) [P( L,D )LA], L/D ratio 96/4, and poly‐( L,DL ‐lactide) [P( L,DL )LA], L/DL ratio 70/30. They were dissolved in dichloromethane and coagulated in a spin bat…
The non-radiative coupling of a molecule to a metallic spherical particle is approximated by a sum involving particle quasistatic polarizabilities. We demonstrate that energy transfer from molecule to particle satisfies the optical theorem if size effects corrections are properly introduced into the quasistatic polari…
INSPEC Accession Number: 10939656
Different techniques are available for the estimation of order parameter in the nematic phase of liquid crystals. However, most of these methods are not applicable to Cholesteric and smectic phases and therefore, the experimental data regarding the order parameter in these phases are hardly available. Measurement resu…
We introduce a method to generate a purely internal rupture of colloidal particle gels by application of an electric field as they are confined in a microfluidic device. Characterization of the local, microstructural effect of yielding made possible by the device avoids the complication of shear banding that often occ…
(As(0.4)S(0.6))(100-x)Ag(x) glasses (x = 0, 4, 8, 12 at.%) have been studied with high-energy x-ray diffraction, neutron diffraction and extended x-ray absorption spectroscopy at As and Ag K-edges. The experimental data were modelled simultaneously with the reverse Monte Carlo simulation method. Analysis of the partia…
Abstract Mechanical, dynamic, thermal, and morphological properties of dynamically cured 60/40 NR/PP TPVs with various loading levels of paraffinic oil were investigated. It was found that stiffness, hardness, tensile strength, storage shear modulus, complex viscosity, glass transition temperature ( T g ) of the vulca…
Nickel hydroxide samples were prepared by using sodium hydroxide and ammonium hydroxide as precipitating agents. The powder X-ray diffraction pattern shows that the degrees of crystallinity in these samples are quite different. The thermal decomposition mechanism of these two nickel hydroxide samples has been determin…
We studied the effect of nonmagnetic and magnetic impurities on superconductivity in ${\text{Lu}}_{2}{\text{Fe}}_{3}{\text{Si}}_{5}$ by small-amount substitution of the Lu site and investigated structural, magnetic, and electrical properties of nonmagnetic ${({\text{Lu}}_{1\ensuremath{-}x}{\text{Sc}}_{x})}_{2}{\text{F…
A new polymorph was found for all RE 2 Ti 2 O 7 (RE = La−Y) compounds during their growth as epitaxial films on SrTiO 3 (110) substrates. Detailed structural characterization using X-ray and electron diffraction revealed that the new polymorph adopts an orthorhombic crystal structure with the space group Ammm and unit…
A series of new liquid crystalline compounds based on the 2,5-bis-(p-hydroxyphenyl)-1,3,4-oxadiazole (ODBP) core was synthesized in an effort to access the biaxial nematic phase at low temperatures. Derivatives with secondary terminal alkoxy groups and derivatives with either two or four lateral methyl groups were pre…
We have measured the $\text{Mn}\text{ }2p$ core-level hard x-ray photoelectron spectra for ${\text{La}}_{0.85}{\text{Ba}}_{0.15}{\text{MnO}}_{3}$ thin films to investigate the temperature dependence on electronic and magnetic states. We can explain the relation between the $\text{Mn}\text{ }2p$ core-level spectra and…
We investigated the formation of nanoribbon hydrogels in a mixed system of zinc ions, bis(ligand)s, and triblock peptide copolymers. Using a combination of experimental techniques: dynamic light scattering, cryo-transmission electron microscopy, small-angle X-ray scattering and circular dichroism, we arrived at a mode…
Non-conventional mesophases have been observed in novel ferrocene-containing liquid crystals. The formation of helical and garland-like superstructures, and spontaneous resolution into macroscopic chiral domains occur in the lamellar mesophase. The nematic mesophase shows unusual textures and chiral nematic droplets s…
Phase transition of ferroelectric Langmuir monolayers composed of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) copolymer with various VDF ratios, was investigated. The thermodynamic, dielectric, and structural properties of these two-dimensional ferroelectric systems were analyzed by coupling surface pres…
A new layered phase Na(0.60)VO(2) was synthesized by chemical deintercalation of sodium from the pristine compound O3-NaVO(2). The Na(0.60)VO(2) compound exhibits a distorted P'3-type oxygen stacking (AABBCC) with an average monoclinic unit cell containing a = 4.9862(14) A, b = 2.8708(8) A, c = 5.917(2) A, and beta =…