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 properties of Electromagnetic Band-Gap (EBG) structures are used to alter the scattering fields by combining Perfect Electric Conductor (PEC) and EBG structures on the same ground plane. Due to the anti-phase property, the reflected energy can be re-directed toward four quadrants and a null to appear toward the no…
Published data on thermodynamic properties, structure, and applications of liquid mercury-sodium alloys are discussed.
Results of dielectric investigations of onion‐like carbon (OLC) and detonation nanodiamond (DND)/polydimethysiloxane composites in wide frequency (20 Hz–3 THz) and temperatures (26–300 K) ranges are presented. The percolation threshold in OLC composites is 6.8 vol%. Electrical conduction in the OLC composites above th…
In our work, we aimed to improve the interfacial properties of the Polyetheretherketone (PEEK) polymer/carbon fiber (CF) by treating the fibers with wet chemical method, a higly oxidative chemical solutions called piranha solution and chromate solution. The changes of the surface funtional groups, chemical composition…
Purpose – The purpose of this paper is to study natural and accelerated weathering of wood-polypropylene (WF-PP) and wood-wollastonite-polypropylene composites made with and without carbon black. Design/methodology/approach – Natural weathering was conducted in Ruokolahti, Finland in the time of year when solar radiat…
In the framework of the Davis-Nadai deformation theory, we study the problem of a ball with a central cavity subjected to internal and external pressure. The solution is constructed in the reference configuration for the polynomial material deformation law with possible regard to matter conservation inside the cavity.…
Click chemistry is employed to couple two β‐cyclodextrins at both ends of azobenzene moiety yielding dumbbell‐shaped amphiphiles (AZO‐β‐CD dimer) constructed by rigid aromatic building blocks as “body”, and hydrophilic cyclodextrins as “head” with almost quantitative yield and purity. Bulk aggregates formed by the sel…
Magnetic anisotropy is always known to decrease with temperature and so far there has been no work in the literature reporting about any experimental observation of the increment of magnetic anisotropy with temperature in any thin films other than the one reported in our previous papers. In this paper, we demonstrate…
Top-gate Al-In-Zn-O (AIZO) thin-film transistors (TFTs) were fabricated using solution process and their device characteristics were demonstrated. The μ sat , SS, and on/off ratio of the AIZO TFT post-annealed at 250°C were approximately 0.66 cm 2 V −1 s −1 , 0.24 V/dec, and 2.1 × 10 7 . Slight negative shifts in turn…
Summary This work aimed to investigate the impact of hydrophobic imidazolium ionic liquids with alkyl chains of varying length attached to the cation imidazolium ring on the rheometric data, the mechanical, morphological, thermal and conductive properties of acrylonitrile‐butadiene rubber (NBR) composites. The presenc…
The atmospheric-pressure microwave N2-H2 plasma torch is generated and diagnosed by optical emission spectroscopy. It is found that a large amount of N atoms and NH radicals are generated in the plasma torch and the emission intensity of N2+ first negative band is the strongest over the spectra. The mixture of hydroge…
Particles of bone cement (polymethyl methacrylate), CoCr and Ti6Al4V were compared for their abrasion potential against CoCr substrates. This appears to be the first study utilizing CoCr and Ti6Al4V particulates to abrade CoCr bearings and the first study profiling the morphology of third-body abrasive wear scratches…
As one of the important strategic metals, Vanadium is applied widely to various fields, 85% of them are used in steel production. In this paper, the properties and the resource distribution of Vanadium are made a rough introduction, and introduced the present application situation of Vanadium in steel ,on-ferrous meta…
Fe-32% Ni alloy subjected to slow heating to a temperature below A s at a rate of 0.01 K/min demonstrates the untwinning and appearance of an intermediate ɛ phase with an hcp lattice and lattice parameters a = 2.535, c = 4.132 Å, and c/a = 1.63. Slow heating to 430–490°C leads to the formation of nanocrystalline auste…
Andreas Erber and Simon Spitko of SGL Group describe how improved thermoplastic composite systems can be achieved through customised materials and process technologies.
In this paper, a translational actuation mechanism in the form of a parallel-crank mechanism (i.e. double-crank 4-bar mechanism) articulated with two dielectric elastomer actuators working in parallel are fabricated. This structure, which is a fully soft mechanism, is established by stretching a dielectric elastomer (…
We used a Kelvin probe to map band-bending occurring at interfaces between indium tin oxide electrodes and fullerene (C 60 ) films doped with either cesium carbonate (Cs 2 CO 3 ) as a donor or molybdenum oxide (MoO 3 ) as an acceptor. The carrier concentrations determined from the depletion layer widths coincided well…
A new cover cracking model is proposed for rebar corrosion. Rebar corrosion involves rust, which contributes to an expansive radial pressure at the concrete-steel interface and hoop tensile stresses in the surrounding concrete. Once the stress state exceeds a certain limit, anisotropic damage occurs. First, we establi…
An elegant, simple, and exact analytical solution (AS) was obtained for a large range of elementary steps with practical importance in free radical polymerization. The AS matches excellently with the numerical solution for the four cases of monomer–polymer systems studied ranging from the slowest to the fastest. It wo…
The optical properties of a simple metallic nanomatryushka (nanosphere-in-a-nanoshell) with gain have been investigated theoretically. The spaser (surface plasmon amplification by stimulated emission of radiation) phenomena can be observed at two critical wavelengths in the active metallic nanomatryushkas. With increa…