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 paper is divided in two parts. The first one recalls the necessary basis of ordered and disordered materials crystal-lography applied to carbons. The second part deals with the transformation of macromolecules (natural or industrial) to carbon and the eventual graphitization of the end-products. It is shown that t…
We discuss the approaches to preserve the high-reflectance aluminum mirror for the vacuum-ultraviolet spectral region. Single fluoride and oxide layers, a homogeneous multilayer, and hybrid multilayer solutions are put forward. Single fluoride and oxide materials have achieved reflectance above 90% at 193 nm. Multilay…
Porous electrodes were fabricated by applying anodic pulses of and duration to pure Nb in phosphate buffered saline solution (PBS), aiming at biomaterial applications. The porosity of the oxide could be controlled by the number of pulses. X-ray photoelectron spectroscopy analysis confirmed the oxide to be . The electr…
Fibre suspension flocculation was studied in a flow loop system, simulating the flow conditions in a modern paper machine headbox. The fibre suspensions after the headbox were accelerated by a secondary contraction, mimicking flow accelerations that may take place during forming. Fibre suspensions were studied using a…
The statistical damage model presented by the authors in the previous pa-per of this series is used to formulate analytical constitutive relations for the hardening and softening phases of two-dimensional lattices. A proper de-nition of the damage parameter for the softening is introduced. The results con rm that the…
The area of integrated optical circuits has been undergoing rapid development and will have huge potential in the future due to the important applications of fiber communication systems and optical interconnects. A significant challenge of optical circuits lies in increasing circuit density while miniaturizing the dev…
This paper is focused on the progress in the determination of water in glasses and melt inclusions with Raman spectroscopy. Using the presented "Comparator Technique" the water content of a sample is determined by simple comparison with a known standard. A calibration curve is not necessary. Furthermore, with this tec…
Processing by severe plastic deformation (SPD) provides the opportunity to achieve remarkable grain refinement in bulk crystalline solids. Typically, materials processed by SPD have grain sizes in the submicrometer or nanometer range. Several different SPD processing techniques are now available but the procedure curr…
Protective properties of zinc coating increase with an additional coating such as: chromate, phosphate, paint and polymer coating. Besides, additional treatment of zinc coating serves decorative purposes as well. The paper presents the influence of additional coating of zinc coating on their adhesive properties which…
This report briefly discusses the mechanism of sulfate attack and the role of selected supplementary cementitious materials (SCMs) in reducing this attack in concrete. The relationship between sulfate resistance and the chemical, physical, and mineralogical composition of SCMs has been elucidated. Based on a number of…
There are several interesting examples of equations governing motion of hypersurfaces bounding two phases of materials in various sciences. Such a hypersurface is called an interface or a phase boundary. When the motion depends only on geometry of the hypersurface as well as position and time, the governing equation i…
These days, whether you're designing a building or a toaster, a savvy knowledge of materials is increasingly critical. And keeping up with the constant flow of new materials, let alone their applicati
Chitin nanofibrils occur in biological tissues, mainly crustacean and insect exoskeletons, according to structural hierarchies together with proteins and inorganic compounds. They have helped elucidate the chitin structure, considering their high degree of crystallization. Isolated nanofibrils are useful to impart str…
Abstract: Solid extruded polymeric materials such as crosslinked polyethylene (XLPE) are widely used in the electrical insulation of underground high voltage power transmission cables. However, the electric strength of the high voltage cable is affected by the presence of cavities (voids) in the insulating part. Durin…
The research status on flashover characteristics of polluted insulators in recent decades, including methods to token the operation condition of polluted insulators, correlation among flashover voltage, pollution level and air pressure, and problems to be clarified are summarized. Meanwhile the prospect on the researc…
Purpose: Effect of the thermo-mechanical treatment conditions on the structure and mechanical properties of the forged elements of constructional C-Mn steels with Ti, V, B and N microadditions. Design/methodology/approach: Metallography, electron microscopy, tensile test, hardness measurements, hardenability calculati…
Effects of alloying elements (Si, Ti, V, Cr, Mn, Fe, Ni, Nb, Mo, Ta and W) on γ (fcc)/ε (hcp) martensitic transformation, ductility and shape memory (SM) properties of Co90Al10 alloy were investigated by means of differential scanning calorimetry, X-ray diffraction method, cold-rolling and an SM test. The addition of…
The multiconductor transmission line formalism is applied to the modeling of bundles of metallic and semiconducting single-walled carbon nanotubes. The developed approach accounts for the effects of electron transport at nanoscale and for the propagation of the voltages and currents along the bundle at the macroscopic…
We propose a phase field model that approximatesits limiting sharp interface model (free boundary problem) up to secondorder in interface thickness. A broad range of double-well potentialscan be utilized so long as the dynamical coefficient in the phase equationis adjusted appropriately. This model thereby assures tha…
Probing surface order as well as the degree of structural modification in carbon nanotube systems is of fundamental importance for incorporation of these materials into practical functional devices. The current study pertains to the analysis of the surface order of vertically-aligned single-walled and multi-walled car…