Materials Literature
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Tetrafunctional epoxy resin of bisphenol-C (EBCF) has been cured by various bisamic acids of anhydrides (tetrahydrophthalic anhydride, tetrachlorophthalic anhydride, and tertrabromophthalic anhydride) and diamines (4,4′-diaminodiphenylsulfone, 4,4′-diaminodiphenylether, and 4,4′-diaminodiphenyl methane) at 120 °C. Cur…
A new cobalt-containing tungstoantimonate Na9[{Na(H2O)2}3{Co(H2O)}3(α-B-SbW9O33)2] · 28H2O 1 has been synthesized and characterized by elemental analysis, Infrared spectrum, UV-visible spectra, thermal gravimetric analysis and single-crystal X-ray analysis. Compound 1 crystallizes in monoclinic crystal system, space g…
The grain boundary diffusion process (GBDP) with DyF 3 is a promising method to obtain excellent magnetic properties in Nd–Fe–B permanent magnets. Compared to conventionally prepared (Dy,Nd)–Fe–B magnets the overall content of the precious heavy rare earth Dy is reduced. Thus, the GBDP with DyF 3 is highly attractive…
We studied the morphology and mechanical properties of a series of polyisobutylene-based thermoplastic polyurethanes (TPUs) with the same composition, but synthesized with tin (II) 2-ethylhexanoate catalyst concentrations ranging from 0.04 to 1 mol% relative to 4,4′-methylenebis(phenyl isocyanate) (MDI). All of the TP…
A recent report proved that polymer residues become grafted to graphene despite the efforts to clean the surface by thermal annealing [Lin, Y.-C., et al. Nano Lett. 2012, 12, 414]. Such residues inevitably originate from the photoresist (e.g., poly(methyl methacrylate) (PMMA)) used for graphene transfer and device pro…
The influencing factors and mechanism of fluorescence enhancement or quenching in mesoporous nanocarriers consisting of gold nanorod cores and mesoporous silica shells (GNR@mSiO2) with controlled thicknesses were investigated. Mesoporous silica can act as a tool to change the distance between the fluorophores and GNRs…
This article proposes an approach for location of partial discharge sources in the power cable and gas-insulated load break switches using a probabilistic neural networks and the fuzzy C-means clustering approach. Three different defect positions are designed in the power cable and gas-insulated load break switches. T…
Structures of the mesophases of five members of the 4-n-alkyl-4'-cyanobiphenyl homologous series (4-n-butyl-4'-cyanobiphenyl to 4-n-octyl-4'-cyanobiphenyl) doped with milled BaTiO_{3} nanoparticles were investigated by x-ray scattering. Clear solutions of each of the 4-n-alkyl-4'-cyanobiphenyls were first prepared in…
The adsorption of O 2 on the TiN(001) stepped surface and the consequent formation of surface oxide have been characterized using first-principles calculations. The adsorption and dissociation of O 2 on both the flat and the stepped surface are predicted to be spontaneous. Compared with the flat surface, however, the…
In this article, the ethylene propylene diene methylene rubber composites filled with pretreated multi-walled carbon nanotubes were prepared by a double-roll milling dispersion method. The thermal and mechanical properties of the composites were measured and evaluated. The morphology of pretreated multi-walled carbon…
This work investigates the fabrication, experimentation, testing, and modeling of shape memory composites consisting of two-way shape memory alloy (SMA) tubes embedded in a shape memory polymer (SMP) matrix. The hybrid system here investigated is thermally activated via internal transport of thermal fluids through the…
The objective of this work is to analyse the chemical stability of BaCe0.85Y0.15O3−δ –Ce0.85Y0.15O2−δ (BCY15–YDC15) composite materials at 600 °C and to compare the aforementioned chemical stability with that of pure BCY15. The composite powders were obtained by mixing together powders of BCY15 and YDC15 in the follow…
The transformation from Ag-TCNQF <sub>4</sub> to Ag <sub>2</sub> -TCNQF <sub>4</sub> <italic>via</italic> photo-induced charge transfer under Au nanoparticles catalysis was monitored by Raman spectroscopy.
This study presents an analytical investigation into the mechanical behavior of a cartilage-polydioxanone (PDS) plate composite grafts. Numerical methods are used to provide a first-order, numerical model of the flexural stiffness of a cartilage-PDS graft. Flexural stiffness is a measure of resistance to bending and i…
Nine structurally related paramagnetic acetylacetonato nickel(II) complexes: [Ni(acac)2] and trans-[Ni(acac)2(X)2]nH/D2O, X = H2O, D2O, NH3, MeOH, PMePh2, PMe2Ph, or [dppe]1/2, n = 0 or 1, dppe = 1,2-bis(diphenylphosphino)ethane, as well as cis-[Ni(F6-acac)2(D2O)2], F6-acac = hexafluoroacetylonato, have been character…
Sub-20 nm sandwich-structured NaGdF4:Yb/Tm@NaLuF4:Yb/Tm@NaYF4 nanocrystals were fabricated for in vivo upconversion luminescence and computed tomography imaging.
In this study fire retarded HDPE/WF composites based on high density polyethylene (HDPE) and wood flour (WF) were investigated. Polymer and WF ratio was kept at 70/30 while concentration of fire retardant was 20 mass %. Ammonium polyphosphate and aluminum hydroxide were used as fire retardants. To diminish the influen…
Application of natural fibers has attracted a great deal of attention among the composite research community in the past couple of decades. In this study, sisal fiber was utilized in fabrication of syntactic foam to improve the mechanical properties. Four sets of samples with different volume fractions of sisal fibers…
In this paper, the process of grafting of acrylic acid on the surface of polypropylene nonwoven using oxygen plasma treatment is studied and optimized. The response surface methodology (RSM) involving D-optimal criterion was used for the modeling and optimization of the process. The effect of plasma treatment time, pl…
Failure by fracture is a serious problem with multilayer ceramic capacitors (MLCCs), and the interior electrodes are known to strengthen MLCCs. Historically, it has been assumed that the dominant strengthening mechanism is crack tip shielding via direct crack tip‐electrode interactions. However, we have found that res…