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。
X-ray powder diffraction, magnetization and electrical resistivity measurements were carried out for polycrystalline Heusler alloys Mn2-xNi1+xSb ( 0 ≤ x ≤ 1) in 4.2-720 K and in magnetic fields up to 16 T. The lattice parameter a was determined to be 0.5974 nm for Mn2NiSb (x = 0) and 0.6021 nm for MnNi2Sb (x = 1) at r…
Methods of synthesis of new prospective polyol components for obtaining of polyurethane foams of reduced combustibility using eco-friendly substrates have been presented. With this end in view, N,N′-bis(2-hydroxypropyl)urea was esterified with boric acid and next the hydrogenborate obtained was hydroxyalkylated by the…
The influence of ethylenediamine and bis(3-aminopropyl)amine insertion into graphite oxide using toluene and ethanol–water media was studied by elemental analysis, X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetry, temperature-programmed desorption and diffuse reflectance infrared Fourier transform…
The study represents the analysis of numerical simulation of the failure of aluminum targets made of highly porous or solid 2024 alloy under dynamic loading. The calculations employed the finite elements method in three-dimensional formulation with the use of proprietary programs. The article presents the results of t…
The use of solvent-free microfluidics to fine-tune the physical and chemical properties of chitosan nanoparticles for drug delivery is demonstrated by J. J. VanDersarl, P. Renaud, and co-workers on page 432. Controlling the time of mixing to within milliseconds during nanoparticle self-assembly enables the adjustment…
Two bipyridinium-benzocrown ether conjugates, 1 and 2, each appending styrene and naphthalene units at the nitrogen atom of pyridine in pyridyl-pyridinium-benzocrown ether conjugates via methylene spacer, respectively, have been prepared to investigate their guest responsive color changes and sensing abilities. Non-cr…
An optimization of the design of the abrasive cutting head using the numerical simulation requires gathering as much information about processes occurring in the cutting head as possible. Detailed knowledge of velocities of abrasive particles in the process of abrasive water jet generation is vital for the verificatio…
Fly ash (FA) was hydrothermally treated in an alkaline solution to produce zeolite X (Z-FA). The properties of the FA and Z-FA were then investigated. The FA consisted of spherical particles of various diameters. The X-ray diffraction patterns of FA and Z-FA showed that the FA mainly consisted of mullite crystals (3Al…
In this work for the first time have been studied modification peculiarities of microcrystalline cellulose (MCC) and its oxidized form (dialdehyde cellulose DA!) guanidine-containing monomers and polymers of vinyl and diallyl series. Researched the structure of the composites by IR spectroscopy and SEM. The biological…
The effects of scan rate, temperature, and number of cycles on the coating thickness of IrOX electrodeposited on a stainless steel substrate by cyclic voltammetry were investigated in a statistical system. The central composite design, combined with response surface methodology, was used to study condition of electrod…
The study describes the diagram of the four-phase composition of metallic system Fe-Si-Mn-B and establishs its mathematical model. Developed computer software allows to calculate the type and quantity of waste of secondary phases in this system with known chemical composition of the metal. Examples of the calculation…
Previously, we have investigated the formation of polymer films from heptane on the surface of a metal substrate in low-temperature plasma ( LTP ) by varying the mode and time of plasma treatment [1–3]. It was found that the formation of the films occurs in three stages, each being characterized by certain topography,…
The electrical insulator and hydrogen permeation barrier coatings are important materials to realize the liquid metal and molten-salt typed breeding blanket systems. We found that erbium oxide (Er2O3) is one of the promising materials as the electrical insulator and hydrogen permeation restraint coatings. Establishing…
The TiO2-activated carbon fiber (ACF) was successfully prepared by electrospinning and thermal treatment. The nanofiber was characterized by scanning electron microscopy (SEM), thermogravimetric-differential thermal analysis (TG-DTA), X-ray diffraction (XRD) and Brunner-Emmett-Teller method (BET). The results showed t…
Eddy current-nondestructive techniques are increasingly present in industry because of the growing quality control demand. Three steel piece classifiers implemented with Artificial Neural Networks (ANNs) are compared in this article. An inductive sensor connected to a currents equipment was used to acquire the impedan…
Magnetic copolymer based on poly(glycidyl methacrylate-co-N-isopropylacrylamide) microspheres was prepared by 2,2-dimethoxy-2-phenylacetophenone- (DMPP-) photo initiated and poly(vinyl alcohol)- (PVA-) stabilized single step suspension photopolymerization. The effect of chemical interaction, morphology, and thermal pr…
UV-curable cyclohexanone-formaldehyde (UVCF) resin was prepared with cyclohexanone-formaldehyde (CF) resin, isophorone diisocyanate (IPDI), and pentaerythritol triacrylate (PETA) as base substance, bridging agent, and functional monomer, respectively. The structure of UVCF was characterized by Fourier transform infrar…
Cathodic processes for electrochemical generation of hydrogen in aqueous KOH solutions in the presence of active electrodes made of Fe-Nb-B-based amorphous metallic alloys alloyed with rare-earth metals (Y, Gd, Dy) were studied. All the amorphous alloys exhibit a catalytic effect in the electrochemical evolution of hy…
A voxel-based meshing technique is introduced for three-dimensional woven fibre composites. It offers a simple and computationally efficient method of meshing fibre tows and matrix, including material boundaries, for specimens of any size and thickness. Voxel element mesh geometry is validated against input in the for…
We report the synthesis of amorphous carbon nanotubes/silver (αCNTs/Ag) nanohybrids via simple chemical route without additional reactant and surfactant at low temperature. Field emission scanning microscope (FESEM) and transmission electron microscope (TEM) confirmed formation of CNTs. X-ray diffraction (XRD) pattern…