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。
This paper presents a hybrid thermal model which can be used for the predesign of permanent magnet synchronous machines. This hybrid model consists of a direct coupling between two lumped parameter thermal networks (stator and rotor) and an analytical solution in the air-gap region. A flat linear permanent magnet mach…
This paper reports a study on the surface plasmon effect of Ag nanoplates on electroluminescent property of polymer light emitting diodes. The diode is a single layer light emitting device made of poly [9,9-di-(2-ethylhexyl)fluorenyl-2,7-diyl] (PEHF). 5 wt.% of Ag nanoplates were incorporated into the PEHF layer. The…
This paper quantitatively compares two coaxial magnetic gears (CMGs) with parallel magnetic circuit and series magnetic circuit, which are artfully integrated into a permanent magnet (PM) brushless DC motor. By using the finite-element method, the performances of both CMGs are compared and evaluated. Analysis results…
Corrosion-resistant steels are stably applied in modern rocket and nuclear technology. Creating of permanent joints of these steels is a difficult task that can be solved by means of welding or brazing. Recently, the use rapidly quenched boron-containing filler metals is perspective. However, the use of such alloys le…
Soft/hard magnetic bilayers are attractive systems for investigating their physical behavior due to scientific curiosity and the potential for technological applications. Thus, 10 nm thick hard magnetic layer placed on a 20 nm soft magnetic layer was modeled in this work. After the constructing of magnetic thin films,…
One of the most widely used structural materials in radiation shielding is concrete. Addition of metal particulates to concrete to enhance its density can be used for gamma and X-ray shielding purposes. In this study radiation shielding performance of concrete containing different amounts of iron filling were evaluate…
This work demonstrates implementation of low energy electron energy loss technique (EELS) in scanning transmission electron microscopy (STEM) to investigate the changes of free electron density at room temperature in ultra-thin NbN films under composite ion beam irradiation up to the deses of ∼3 d.p.a. for nitrogen at…
Thin amorphous and crystalline films of VO2 are obtained on (0001) sapphire substrates via pulsed laser deposition with the speed separation of particles under a variety of deposition conditions. The electrical and optical properties of the films in the vicinity of the phase transition in the temperature range of 20 t…
This paper presents results of research of the structure and phase transformations during the multistage crystallization of the metallic glasses with the compositions Ni 71,5 Cr 6 , 8 Fe 2 , 7 B 11 , 9 Si 7,1 and Ni 63,4 Cr 7 , 4 Fe 4 , 3 Mn 0 , 8 B 15 , 6 Si 8,5 labeled as AWS BNi-2 according to American Welding Soci…
A comparative study of the results of spark-plasma sintering (SPS) of two-types of aluminum oxide nanopowders, obtained by the method of conductor explosion and plasma synthesis. When the parameters of both powders are similar (spherical form of the particles, size, phase composition) as well as SPS modes the properti…
The microdeformation has been investigated under uniaxial compression of beech-derived biocarbons partially graphitized during carbonization in the presence of a Ni- or Fe-containing catalyst. The strength and ultimate fracture strain have been determined at different temperatures of carbonization of the samples in th…
The results of experimental estimation of the drapability coefficients for glass, carbon, and organic fabrics are given. It is found that the smallest characteristics concerning drapability are for carbon fabrics, while the best are for organic ones. Comparison of different types of the weaving shows that the drapabil…
ZnO nanorods were synthesized on silicon wafer substrate with a seed zinc layer using the aqueous solution method. The influence of various precursor compositions on the morphology of the ZnO nanorods, with substrate angles at 0° and 90°, was investigated. The various ratios of hexamethylenetetramine in zinc nitrate h…
The structure, electromagnetic and optical properties of the O-terminated graphene nanoribbons with armchair edge are studied using first-principles theory. The results show that the O-terminated armchair edge are more stable than the H-terminated ribbons and show metallic character. Spin-polarized calculations reveal…
K shell intensity ratios and Line Widths of pure Ti and some of its compounds have been determined experimentally using an Ultra-LEGe detector with resolution 140 eV at 5.9 keV. The samples were excited 5.96 keV photons emitted from a 55 Fe radioisotope source with 50 mCi activity. The experimental values of the K she…
A new approach to implementation of electrode metal transfer control under MAG, MIG welding is suggested. The process ensures control of thermal and crystallization processes, stabilizes the time of electrode metal drop formation. The results of the research allow formulating the basic criteria of electrode metal tran…
In the present study, the variation of the propagation velocity of ultrasound in the plastic deformation of corrosion-resistant high-chromium steel 40X13 with ferrite-carbide (delivery status), martensitic (quenched) and sorbitol (after high-temperature tempering) structures have beem studied/ It is found that each st…
A study of how the total magnetization of a Ni-Fe heterostructure evolves during the relaxation of non-equilibrium, inhomogeneous, magnetization distributions toward an equilibrium state. These distributions occur within the framework of a superdiffusive mechanism of ultrafast demagnetization, after exposure to a femt…
Set reconciliation between two nodes is widely used in network applications. The basic idea is that each member of a node pair has an object set and seeks to deliver its unique objects to the other member. The Standard Bloom Filter (SBF) and its variants, such as the Invertible Bloom Filter (IBF), are effective approa…
Coupled simulations of both thermal and electrical processes are employed to perform reliable estimations of the harvesting capabilities of a novel thermoelectric generator concept based on the use of p- and n-type materials films of nanometric thickness separated by a dielectric layer. The doping and geometrical para…