Materials Literature
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In this paper, the sorts, mechanical property, strengthening and toughening mechanism of ceramic cutting tool materials were summarized in the present study, especially the Si3N4 based nanocomposite and Al2O3 based ceramic cutting tool materials. The problems to be solved in the field were suggested. It would act as t…
Environmental pollution problems in the copper industry are studied from the water pollution, air pollution and soil pollution. The threshold of copper industry access should be improved and elimination of three-high backward productivity should be accelerated to solve environmental contamination in the copper industr…
The aim of this study was to investigate the surface composition and morphology of fast-growing Alkaline peroxide mechanical pulping (APMP). Surface ultrastructure of APMP were modified by cellulase. The fiber ultrastructure and cellulose crystallinity before and after treatment with cellulose enzyme were analyzed by…
The relationship between the PD current pulse waveform at the PD source and the radiated electromagnetic (EM) waveform is investigated using a needle electrode for a metallic particle in SF6 gas at 0.2MPa. A leader discharge with a larger PD charge magnitude and a longer propagation length than for a streamer discharg…
The crystallization behavior and crystalline structure of poly (lactic acid) (PLA) filled with a novel nucleating agent (TMC328), which is a kind of aromatic amide derivatives, were investigated using differential scanning calorimetry (DSC) and wide angle X-ray (XRD). In isothermal crystallization from the melt, the p…
A spectral analytical system designed for recording the electronic spectra of melts in the range of 42500–6000 cm −1 is tested on melts of different nature. The temperature range in which the system operates is fpund to depend on the spectral range. The electronic absorption and reflection spectra of NaF-FeF 3 , BeF 2…
Layered double hydroxides (LDHs) materials could be used in cement and concrete for their ions capturing capacity and to enhance durability of concrete. In this work, properties and chloride binding capacity of different types of LDHs were compared, micro-mechanism of chloride binding of LDHs were analyzed and chlorid…
In iron-based superconductors, unravelling the origin of the antiferromagnetism is a crucial step towards understanding the high-Tc superconductivity as it is widely believed that the magnetic fluctuations play important roles in the formation of the Cooper pairs. Therefore, in this paper, we will briefly review exper…
A simple and effective way for preparing AlB 2 nanopowders was developed using solid state reaction with a mixture of nanometre‐sized powders of aluminium and amorphous boron. The optimum synthesis conditions and the structural characteristics of the products were carefully investigated by means of X‐ray diffraction,…
The possibility of preparing Fe-Ni-Al polymetallic systems by contact exchange in chloride-containing aqueous solutions was examined. The relationships describing the process that occurs on aluminum microparticles were found. The systems obtained are precursors of intermetallic compounds Ni 0.58 Al and Fe 10.8 Ni.
Nanocrystalline n-type 95%Bi2Te3-5%Bi2Se3 bulk with prepared by the combined application of high energy milling and hot extrusion processes in this study. The effect of milling time on the microstructure of powders was characterized by scanning electron microscopy (SEM). With increasing milling time, powder size quick…
Nanotechnology has emerged as a "disruptive technology" that may provide researchers with new and innovative ways to diagnose, treat and monitor cancer. In fact, nanomedicine approaches have delivered several strategies, such as new imaging agents, real-time assessments of therapeutic and surgical efficacy, multifunct…
Ni nanowire arrays were prepared by electrodeposition into nanopoures of anodic alumina template using a two-electrode electrochemical cell. The morphology of the samples was investigated by means of scanning electron microscopy (SEM). The microwave absorption characteristics of the samples were examined using an HP n…
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The dependence of thermal conductivity of polymer composites based on Viksint PK-68 on the dispersion composition of such fillers as powders of silicon carbide and microdiamonds has been studied. It has been shown that the thermal conductivity of polymeric compositions depends on the gradient of fractions in the powde…
The semiconductor properties of nitrogenated nanocrystalline diamond electrodes and their corrosion transformations caused by electrochemical experiment in indifferent electrolyte (1 M K2SO4) were studied by the electrochemical impedance spectroscopy method. It was shown that after electrochemical measurements a narro…
Magnetostrictive (MS) materials exhibit a large strain and a high energy-density, because of their large MS coupling coefficient. In particular, an MS actuator that uses Terfenol-D generates great-force and strain. The efficiency of an MS actuator is highly dependent on the pre-stress, magnetic field intensity, magnet…
Step-growth polymerization continues to receive intense academic and industrial attention for the preparation of polymeric materials used in many applications. In this method the reaction between monomers and the growing polymer chain end group may releases a small molecule such as water, alcohol, and etc. A number of…
Using numerical simulation, we investigate the high-order plasmon resonances in individual nanostructures of an Ag nanorice core surrounded by an Al 2 O 3 shell. The peak positions of localized surface plasmon resonances (LSPRs) are red-shifted exponentially with the increase of the dielectric shell thickness. This is…
Experimental data are presented for the position of phase boundaries “orthorhombic-rhombohedral structure” and “semiconductor-metal” in manganites of La1 − c + x Sr − 2+ Mn1 − x Me 2+ O3 + γ (Me = Mg, Zn, Ni) systems depending on the concentration of substituting divalent cations (0.15 ≤ c ≤ 0.35; 0.025 ≤ x ≤ 0.100).