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 magnetocrystalline anisotropy of uniaxial (PrDy)(FeCo)B rare-earth magnets is determined using the Akulov model and studied in the 2–300 K temperature. The (PrDy)(FeCo)B samples demonstrate the power dependence of anisotropy constant K(T) on saturation magnetization MS(T) in the temperature range 2–300 K with expo…
Abstract The effect of thermal cycling and sintering temperature on the chemical and thermodynamic stability of the bulk multiferroic xLa0.7Pb0.3MnO3–(1 – x)PbTiO3 quasi-ceramic and ceramic composites has been experimentally investigated. It is shown that the limiting temperature of the long-term sample firing should…
ABSTRACT The radiocarbon (14C) content of irradiated graphite is the most important problem for the management of Spanish irradiated graphite (Vandellós I NPP) as L&ILW, due to this material exceeding the maximum14C inventory for the C.A. El Cabril repository. Therefore, the encapsulation of graphite in an impermeable…
A method to generate surface plasmon polaritons (SPP) carrying orbital angular momentum (OAM) is proposed. Here the electrons beam is rotating around the nanowire as well as going along it at the same time. As the trace of the electron beam is chiral, the SPP it generate can be chiral as well, enabling it to carry OAM…
Abstract The methods of broadband dielectric spectroscopy are used to study the effect of substitution of Fe3+ by Sc3+ in Pb(Fe1 – xScx)2/3W1/3O3 solid solutions of perovskite family on the dielectric response function in the frequency range from 120 Hz up to 100 THz (4 × 10–9–3 × 103 cm–1). The experimental data are…
Recently, there has been considerable interest in utilizing graphene for biosensing. Graphene has unique characteristic where the bareness of the graphene allows it to be exposed directly to the aqueous solution. As defect can increase the sensing area and assist the surface's bio-functionalization, hence this paper a…
The “black-out” phenomenon of reentry vehicles has been a bottleneck problem that has plagued people for many years. Based on the basic interaction mechanism between electromagnetic wave and plasma, researchers have carried out a series of studies in order to overcome the “blackout” phenomenon essentially, and solving…
In this paper, a multi-layer metamaterial structure based on two-dimensional (2D) curved surface substrate is simulated working in THz band. The simulated results showed some novel properties compared to the conventional planar metamaterial absorber. The metamaterial structure based on curved surface presented good re…
Abstract Substitution of fossil-based chemical processes by the combination of electrochemical reactions driven by sources of renewable energy and parallel use of H 2 O and CO 2 to produce carbon and hydrogen, respectively, can serve as direct synthesis of bulk chemicals and fuels. We plan to design and develop a prot…
Abstract Interaction of mineral solutions with solid wood leads to saturation of the wood matrix, then to the deposition of mineral particles and eventually to reaction with wood components. In this way a partially or fully mineralized wood occurs in natural or artificial conditions, whose physical-mechanical properti…
In this contribution, a design of novel cantilever beam energy harvester, composed of several ceramic layers with introduced high residual stresses, is proposed. The main aim of residual stresses is to protect the piezoelectric layer from cracking during the service of the harvester. A way to optimize composition of t…
It is important to examine the factors that determine the properties of graphene. Various factors affect the properties of graphene nanosheets that can revolutionize the use of graphene. One such factor is ultrasonic waves, which have significant effects on graphene properties. In this research, we studied the effect…
Abstract Electron microscopy is used to study samples of an aluminum matrix composite material with multiwalled carbon nanotubes (MWCNTs). The features of microstructure changes occurring during the preparation of a composite in a spark plasma sintering (SPS) setup are identified. The results of the simulation of the…
Abstract The application of wear-resistant coatings in the presence of a magnetic field is proposed for components of hydraulic systems. A method is developed for controlling the residual stress and mechanical properties by means of crystallographic anisotropy.
Within the framework of the fractional-dimensional approach, exciton binding energies in GaAs films on AlxGa1-xAs substrates are investigated theoretically. In this scheme, the real anisotropic "exciton + film" semiconductor system is mapped into an effective fractional-dimensional isotropic space. For different alumi…
Meniscus plays fundamental roles in the knee mechanisms and functions but injuries happen in meniscus have poor healing ability that requires great interventions. Tissue engineered scaffolds serve as one of the interventions to regenerate the required tissue to treat early degenerative joint disease. The purpose of th…
In this study, a multifunctional ophthalmic lens material with an electromagnetic shielding effect, high oxygen permeability, and high water content is tested, and its applicability is evaluated. Metal oxide nanoparticles are applied to the ophthalmic lens material for vision correction to shield harmful electromagnet…
In this paper, a high-conversion converter is proposed, which uses the phase gradient metasurface (PGM), and can achieve efficient mutual conversion between spatially propagating waves (PW) and surface waves (SW). Simulations show that the converter has a PW-SW conversion of 99.99%, at 7.5 GHz, 0.09% higher than that…
The influence of CuBi2O4addition on sintering temperature, structural, dielectric and piezoelectric properties of (Ba, Ca)(Ti, Zr)O3BCTZ ceramics prepared by the direct solid-state reaction were investigated. The X ray diffraction (XRD) data showed a single phase perovskite structure with morphotropic phase for all sa…
Based on half-space finite difference time domain and Monte-Carlo method, composite scattering between rough optical surface and defects is investigated numerically. The defects are observed as multilayered particles for a more complex situation. In order to obtain the scattering contribution of defects, difference ra…