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。
Natural composites (biocarbons) obtained by carbonization of beech wood at different carbonization temperatures T carb in the range of 800–2400°C have been studied using X-ray diffraction. The composites consist of an amorphous matrix and nanocrystallites of graphite and graphene. The volume fractions of the amorphous…
Liquid-crystalline mono-and binuclear complexes of Fe(III) based on pentadentate Schiff’s base, N,N ′-bis(2-hydroxy-4-octadecyloxybenzyliden)-1,7-diamino-4-azaheptane, have been prepared for the first time. The effects of counterions of the binuclear complexes and of the monodentate ligand in the mononuclear complexes…
Silver halides represent a yet unexplored avenue for imparting antimicrobial activity in calcium phosphates. Silver halide colloids were added to calcium phosphate. Concurrent melting of silver halides and crystallization of carbonated apatite was achieved by heating to increase the silver halide surface area availabl…
SiC continuous fiber reinforced SiC ceramic matrix composites (SiC f /SiC CMCs) and SiC fiber reinforced SiC micro ceramic matrix composites (SiC f /SiC micro-CMCs) were prepared through polymer impregnation pyrolysis (PIP) progress, then the structures, mechanical properties and forming mechanisms of SiC f /SiC CMCs…
The crystal and magnetic structures of anion-deficit cobaltite La0.5Ba0.5CoO2.8 have been studied by the X-ray and neutron diffraction methods at high pressures up to 30 and 6 GPa, respectively. A structure transition from the cubic phase with symmetry $Pm\bar 3m$ to the tetragonal phase with symmetry P4/mmm has been…
This theoretical study is focused on the formation of a cylindrical microstructure in a planar polymer brush in the presence of a surfactant. It is assumed that the brush may be nonuniform in the direction along the grafting plane and that there are regions with constant concentrations of monomer units and regions occ…
Methodology of impedance measurements and ferroelectric hysteresis loops observed in temperature range 292475 K for antimony sulfoiodide (SbSI) grown from vapour phase are discussed. Temperature dependences of spontaneous polarization and coercive eld of SbSI crystals are presented.
In this article, we propose a new lifetime task optimization technique for real-time embedded processors considering the electromigration-induced reliability. The new approach is based on a recently proposed physics-based electromigration (EM) model for more accurate EM assessment of a power grid network at the chip l…
We synthesize Tm 3+ /Tb 3+ /Eu 3+ triply-doped ZrF 4 —BaF 2 —LaF 3 —AlF 3 —NaF (ZBLAN) transparent glass by using a melt-quenching method. Under excitation of 365 nm, the white emission with Commission internationale deL'Eclairage (CIE) coordinates of (0.33, 0.33) is achieved at the Eu 3+ concentration of 1.1 mol%. Th…
BaTiO3-CoFe2O4nanocomposites with a 1/1 molar ratio were prepared by a combination of polyol synthesis (chimie douce) and a subsequent consolidation by spark plasma sintering. The nanocomposite samples, with a grain size about 50 nm showed a good mixing and a high density. Their impedance response was measured in the…
An electrode-arrayed magnetoelectric (ME) composite was proposed, in which the positive and negative electrodes of the PZT-5H plate (Pb(Zr0.52Ti0.48)O3) were equally divided into a 2 × 5 array, while the PZT plate remained intact. The ME voltage coefficients of these 10 sections were measured individually and in paral…
The fracture process of metals due to hydrogen embrittlement is described theoretically as a first-order phase transition. The fractured and unfractured phases are in equilibrium at the instant of fracture and are described by the equality of stresses and thermodynamic potentials. In the context of this approach, the…
In this work, an aqueous solution of sodium dodecylsulfate (SDS) surfactant is used as an additive for electropolymerization of N,N-dimethylaniline (DMA) onto carbon paste electrode (CPE), which is investigated as a novel matrix for deposition of nickel. The electrochemical oxidation of formaldehyde is studied at the…
The problem of pulsations of a gas bubble that are excited by oscillations of the external pressure has been solved analytically. The similarity numbers controlling the process under consideration have been obtained. It has been shown that variations of the parameters inside the bubble are determined by the adiabatic…
As a ceramic with high economic value, aluminum nitride possesses high thermal conductivity, excellent electrical insulation, high mechanical strength and high melting temperature and these all are required in high technologies involving cooling, insulation, thermal expansion and corrosion. This paper deals with therm…
Telah disintesis dan dikarakterisasi edible film komposit karagenan-montmorilonit. Penelitian ini bertujuan untuk memperoleh komposisi dari komponen penyusunedible film (karagenan sebagai bahan dasar, gliserol sebagai plasticizer, dan montmorilonit sebagai filler), mengetahui pengaruh penambahan montmorilonit terhadap…
The silent transportation with zero emission, especially electrical vehicle, becomes an alternative vehicle for supporting the environmentally friendly cities. The use of lightweight materials with high fire resistant are needed to be applied on the vehicle, like composites. The enhancing of fire resistant on carbon f…
We investigated the structural and magnetic properties of Cu2Mn1–xFexAl (x$=0.25$, 0.5, 0.75) alloys. Among the three compositions, onlyx$=0.25$composition crystallizes in single phase with L$2_{1}$structure but its magnetic response indicates a complex magnetic structure. The magnetic isotherms were fitted to modifie…
In this paper, the reversible transducer properties of a piezomagnetic unimorph are investigated experimentally and aggregated in a linear equivalent circuit. The unimorph consists of a single-crystal Galfenol plate, which is mounted to an aluminum plate. Such two-layer piezomagnetic elements are used in bending actua…
Structural, elastic, thermodynamic of ZrAl2 under pressure, ideal strength and deformation mode under tension are investigated by the first-principles method. The calculated structural parameters at zero pressure are in consistent with experiments. Under pressure, elastic constants and their pressure dependence are ob…