Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The combination of Finite Element Method (FEM) simulation and experimental photo-elasticity provides both qualitative and quantitative information about the stress field in a polymer composite and particularly along the fibre-matrix boundary. Investigations were made using model specimens containing up to five paralle…
SiC is a robust semiconductor material considered ideal for high-power application due to its material stability and large bulk thermal conductivity defined by the very fast phonons. In this paper, however, we show that both material-interface scattering and total-internal reflection significantly limit the SiC-nanost…
We show that thermal effects play a relevant role in the determination of the electron-phonon couplings based on the intensity of the phonon-shakeup peaks in photoemission spectra. In particular, we re-consider the determination of the electron-phonon couplings of fullerene based on a fit of the photoemission spectrum…
A large number of polycrystalline materials, both manmade and natural, display preferred orientation of crystallites. Such alignment has a profound effect on anisotropy of physical properties. Preferred orientation or texture forms during growth or deformation and is modified during recrystallization or phase transfor…
Abstract For Abstract see ChemInform Abstract in Full Text.
Abstract Redox reactions of dodecacarbonyltetrarhodium(0), Rh4(CO)12, with 9,10-phenanthraquinone derivatives gave novel one-dimensional rhodium(I)–semiquinonato complexes. Two typical linear chain structures with direct Rh–Rh contacts were determined by X-ray crystal structure analyses of the compounds.
Abstract The precipitation kinetics of zinc sulfide were studied using a lab scale mixed‐suspension‐mixed‐product‐removal (MSMPR) precipitation reactor. The vessel was operated at different feed concentrations, molar ratios, stirrer speeds, pH‐values, feed injection positions and residence times. Primary nucleation an…
Abstract In order to grow benzophenone single crystal, an organic nonlinear optical material, a cost‐effective Vertical Bridgman‐Stockbarger system has been designed and fabricated by employing a two‐zone, transparent furnace made out of immiscible liquids. Transparent, optical quality benzophenone single crystals wer…
Crystal plasticity finite element (CPFE) models are useful tools in modelling the anisotropic stress–strain responses in large deformation of polycrystalline metals. In this study, a CPFE model is applied to simulate the evolution of crystallographic textures during cold rolling of hot-rolled aluminium plates and duri…
Porous Ge thin films (see Figure) have been prepared using low-pressure, inductively coupled plasma chemical vapor deposition. Au nanoparticles are used as catalysts to initiate the protrusion of Ge nanotips from the surface of the substrate. After removing the catalysts during growth, the Ge nanotips coalesce togethe…
Abstract Although molecule‐based materials can combine physical and chemical properties associated with molecular‐scale building blocks, their successful integration into real applications depends also on higher‐order properties, such as crystal size, shape, and organization. New approaches involving templating and se…
The synthesis and characterization of an ultra-thin palladium nanocoating in the channels of a mesoporous silica material, designated as Pd-SBA, is described. In the preparation of this new material, Si–H functional groups were introduced directly into the channel of an SBA-15 mesoporous material, eventually resulting…
A process to synthesize silica mesoporous capsules is reported (see Figure), where mineralization takes place at the oil–water interface of reverse emulsion droplets. The capsules exhibit an homothetic morphology. Simple scaling analysis reveals that mineralization takes place above a well-defined hydrolyzed precursor…
Complexing deprotonated trihydromethylethane with iron(III) leads to the formation of a tetranuclear iron cluster (see Figure) with a S = 5 spin ground state and a appreciable magnetic anisotropy. Low-temperature investigations demonstrate single molecule magnet behavior and resonant tunneling within the ground state.
A unique method of material synthesis based on vacuum co-deposition is reported. A Eu complex was formed by co-deposition of bis(dipivaloymethanato)europium (Eu(DPM)3) and 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), which both showed excellent volatility during vacuum deposition. Photoexcitation of the BCP le…
The monoborohydride lanthanide complex [Sm(Cp*)2(BH4)(thf)] (1a) (Cp* = eta-C5Me5), has been successfully used for the controlled ring-opening polymerization of epsilon-caprolactone (epsilon-CL). The organometallic samarium(III) initiator 1 a produces, in quantitative yields, alpha,omega-dihydroxytelechelic poly(epsil…
Novel core–shell cable structures (see Figure) of metal alloys are described as one application of field-controlled electroplating of metals in anodic aluminum oxide (AAO) templates. At high current density (∼ 20–300 mA/cm2), the electroplating process occurs relatively fast through the surface of the AAO channels to…
Extensive experimental and numerical studies of the non-equilibrium dynamics of spin glasses subjected to temperature or bond perturbations have been performed to investigate chaos and memory effects in selected spin glass systems. Temperature shift and cycling experiments were performed on the strongly anisotropic Is…
A laminin–apatite composite layer (see Figure) with superior cell-adhesion properties that has been formed on the surface of titanium metal without denaturation of the laminin is reported. Application of the composite to titanium materials is expected to prevent bacterial infection, and it is therefore believed that t…
We study the mutual interactions of simple, parallel polymers and nanotubes, and develop a scheme to include the van der Waals interactions in the framework of density functional theory (DFT) for these molecules at intermediate to long-range separations. We primarily focus on the polymers polyethylene, isotactic polyp…