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。
Experimental and calculated electron density distributions determined for oxide and silicate crystals and siloxane molecules provide a new basis for addressing the classic foundation of the crystal chemistry of silicates, including atomic/ionic radii, the radius ratio rule and the nexus between the Pauling’s bond stre…
The effects of two types of carbon blacks (CBs), N990 and Vulcan XC-72, on the mechanical properties and thermal conductivity of filled silicone rubber (SR) were investigated. It was found that the addition of CB particles increased the thermal conductivity, the thermal stability and the tensile strength of the silico…
Yttrium and the rare-earth elements (Y+REEs) are incorporated into aluminosilicate garnet as trivalent ions replacing divalent Mg, Fe, Mn, or Ca (“M 2+ ”) in dodecahedral sites, which requires some form of coupled substitution to maintain electroneutrality. We compare the energetic costs of competing coupled-substitut…
GH536 has been widely employed as one kind of high-performance materials; however, the poor machinability of GH536 especially substantial tool wear can still be considered as a problem. On the contrary, deep cryogenic treatment can be considered as an effective heat treatment to improve the milling cutter performances…
The layered double hydroxides (LDHs) with different divalent transition metal groups and nitrate as a counter anion were investigated. Three d-block divalent metals namely cobalt (Co), nickel (Ni) and copper (Cu) were selected. The cobalt/aluminium (CoAN)-, nickel/aluminium (NiAN)- and copper/aluminium (CuAN)-layered…
Armchair Graphene nanoribbons (A-GNRs) are widely used because of their semiconducting electronic properties in nano-sized transistor. One of the important electronic properties of A-GNR based device is capacitance formed in channel and another one is gate delay. The classical capacitance which is only determined by d…
Polycrystalline thin films of silver antimony selenide have been deposited using a reactive evaporation technique onto an ultrasonically cleaned glass substrate at a vacuum of 10 −5 torr. The preparative parameters, like substrate temperature and incident fluxes, have been properly controlled in order to get stoichiom…
In this paper, we investigated the connection between the employment of multi-chromatic phosphor and CRI value for WLED devices by simulation, using the excitation and emission spectra of phosphor and surface source property of LED chips acquired from experiments. CRI value was examined in the range of 56.8-76.0 due t…
The state of the surface of organic-inorganic coatings derived by sol-gel technology on a steel surface and their effect on the reduction of the air friction losses of a mini-turbogenerator rotor were studied. Two hypotheses about the effect of the surface condition on the reduction of the air friction losses—by impro…
Abstract This is the first in a series of papers presenting the development of a comprehensive multiscale model with focus on fiber energy efficiency in thermo mechanical pulp processes. The fiber energy efficiency is related to the defibration and fibrillation work obtained when fibers and fiber bundles interact with…
Partial discharge (PD) measurement is an established high voltage insulation monitoring technique used to facilitate the detection of incipient faults in high voltage apparatus. Based on the great importance of the power system, is constant the research about the nature and characteristics of PD sources. A low-cost, f…
The separation characteristics of Eucalyptus camaldulensis biomass cell wall were investigated and analyzed by FTIR, UV and XRD. The result showed that the crystallinity of untreated sample were lower than ones of treated samples at 10° C, 20° C and 30° C. Effect of temperature was very notable so as to use the lower…
A model of nanocrystal in the form of a rectangular parallelepiped with variable surface shape (RP model) is used to study the dependences of surface pressure P sf , elasticity modulus B T , and of the size compression depending on the size and shape of simple substance with free surface. It is shown that the surface…
In static castings of multi-component alloys, visually observable bands of channels, with high solute concentration, can form in the final solidified product. The phenomenological explanation for these formations is that perturbations during the solidification process lead to preferred flow paths in the solid-liquid m…
To research physical fields evolution and microstructures for compound extrusion of AZ31 Alloy, A kind of compound extrusion technology including extrusion and following shears for AZ31 magnesium billets have been explored. Three-dimensional finite element simulations of extruding AZ31 magnesium alloy billets into sma…
The possibility of applying the two-component model of single-phase hybrid materials to the explanation of the anomalous temperature dependence of elastic moduli of copper with a submicrocrystalline structure has been discussed. An analysis has been performed based on new experimental data. A twin mechanism of changes…
The structure, lattice imperfection, and properties of ceramic samples La0.6 − x Nd x Sr0.3Mn1.1O3-δ (x = 0–0.4) have been investigated using the X-ray diffraction, resistive, magnetic (χac, 55Mn NMR), magnetoresistive and microscopic methods. It has been shown that there is a satisfactory agreement between the concen…
Quantum dots (QDs) are highly fluorescent and stable probes for cellular and molecular imaging. However, poor intracellular delivery, stability, and toxicity of QDs in biological compartments hamper their use in cellular imaging. To overcome these limitations, we developed a simple and effective method to load QDs int…
We fabricated sub-10-nm-wide intercalated multi-layer graphene (MLG) interconnects and demonstrated a resistivity lower than that of cupper (Cu) interconnects with similar dimensions. The high-quality MLG was synthesized epitaxially by chemical vapor deposition on an epitaxial cobalt film, and intercalated with FeCl3.…
In this paper, we study electromigration (EM) reliability of signal lines. We propose a general model for current conversion from pulsed DC to steady DC based on the consistency of maximal atomic flux divergence. Both long and short lead lines with high frequency current are considered. The calculated effective steady…