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 molecular structures of 2,6-diaza-1,3,5,7-tetraoxaspiro[3,3]heptane (1) and its dinitro derivative, 2,6-dinitro-2,6-diaza-1,3,5,7-tetraoxaspiro[3,3]heptane (2), were fully optimized without symmetry constraints at $HF/6-31G^*$ level of theory. A bisected conformation with respect to the ring is preferred with a $C…
The adsorption behavior of the sulphate ( $SO{_4}^{2-}$ ) on the external surface of (5,0), (8,0), and (10,0) zigzag AlNNTs was studied by using density functional calculations. Adsorption energies in the nanotubes are about -8.59, -8.04, -8.60 eV with a charge transfer of 0.59, 0.48, 0.56|e| from the sulphate ion to…
This paper reports the application of specific trend’s consistency of Full Hydrogenation (FH) of SCPOFA to establish operating conditions for providing new product of Partially Hydrogenated (PH) fatty acid, an Intermediate Raw Material (IRM) of a mixed fatty acid T40, which is a modification of fatty acid products. Co…
Cobalt ferrite powders with excellent infrared radiation property were synthesized via the Sol-Gel method, where iron nitrate and cobalt nitrate were used as the original materials and citric acid as the chelating reagent. The effects of pH of the starting solution (pH=1, 3, 5 and 7) on the infrared radiation property…
"ENGINEER", established in 1973 by The Institution of Engineers, is a Journal for dissemination of Engineering knowledge, published quarterly.If you are interested in contributing an Original Technical Paper based on research by the author(s) (intended for Section I) or an Original Article of Professional or Technical…
Fe 77 Co 2 Zr 9 B 10 Cu 2 alloy prepared by melt-spinning was annealed at different heat treatment conditions. The thermal property, microstructure and magnetic property of alloys were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sam…
We have synthesized disc-like large silver nanomaterials that have nanostructured bumps on the surface using smaller nanoplate seeds. The size and shape of the bumpy nanostructures are rationally controlled by changing the concentrations of nanoplate seeds, silver ion, reductant, and citrate ion. Importantly, the synt…
Density functional theory (DFT) calculations at the B3LYP/6-31G(d,p) theoretical level were performed for two novel explosives (compounds B and C) based on the guanidine-fused bicyclic skeleton $C_4N_6H_8$ (A). The heats of formation (HOFs) were calculated via isodesmic reaction. The detonation properties were evaluat…
Spin valve giant magnetoresistance (GMR) sensors were prepared by a two-step thinning method combining grind thinning and inductively coupled plasma (ICP) etching together. The fabrication processes of front GMR sensors and backside ICP etching were described in detail. Magnetoresistance ratio of about 4.24% and coerc…
Tageteserecta flower like zinc oxide nanostructures composed of hexagonal nanorods were synthesized via sonochemical method at room temperature. The synthesized nanomaterials exhibited wurtzite hexagonal phase structure with the single crystalline nature. The diameter of the individual nanorods that constitute the flo…
for 72 h. The tube was cooled to room temperature at the rate of 12 K/h. In both cases, the excess halide was removed with distilled water and yellow needle-shaped crystals were obtained. The role of chalcogens in the reactions is not clear but it is helpful to obtain the product as single crystals. The crystals are s…
In order to reveal the solute existing form and its effect on the microstructure and mechanical properties in the supersaturated solid solute films, TiBx/Al composite film with 7.1%TiBx (atomic fraction) was synthesized by magnetron co-sputtering using Al and TiB2 targets. The microstructure and mechanical properties…
The article is about the research of distribution of deformation on thickness of the maple samples received by means of hot rolling. In relation to these conditions when rolling in broadband camp, distribution of deformation on thickness of strips was estimated by method of screws, and character of structure was speci…
The paper is devoted to study of structure, mechanical properties and wear resistance of multilayer coating formed by oxyacetylene welding carbide-containing rods, powder material with nickel sublayer. The amount of wear depends on the structure of the deposited material and welding conditions.
Transparent and monolithic aerogels were prepared via acid-base two step Sol-Gel process with Me- thyltrimethoxysilane (MTMS), water, acetic acid and ammonia as precursor, solvent, acid and base accelerators, respectively, followed by drying under a supercritical condition using alcohol as drying medium. Scan electron…
Low temperature gas carburizing has been established as a surface hardening process to improve the wear and fatigue resistance of austenitic stainless steel.In the gas carburizing treatment of stainless steel at low temperature,carbon diffuses into the steel to a depth up to dozens of or even hundreds of micrometers.I…
TiO2/diatomite photocatalysts were synthesized by a facile Sol-Gel method using diatomite as supporter and tetrabutyl titanate (TBOT) as precursor. The crystalline and morphological properties of catalysts with different calcination temperatures were characterized by X-ray diffraction (XRD), Fourier-transform infrared…
A 2D grid-like (4, 4)-connected topology coordination polymer, $[Co(BTA)_2(H_2O)_2 ] _n$ (1), where HBTA = 2-(1H-benzotriazol-1-yl)acetic acid, has been synthesized by hydrothermal method and characterized by single crystal X-ray diffraction, IR spectroscopy, elemental analysis and surface photovoltage spectroscopy (S…
With the thermodynamic analysis on directional solidification of metal-hydrogen eutectic, a theoretical model was developed to predict the effect of the Gasar processing parameters on the pore diameter and interpore spacing. The model was applied for the Gasar porous Cu fabricated by continuous casting process. The av…
$Cd_{1-x}Zn_xS$ -sensitized $K_4Nb_6O_{17}$ composite photocatalysts (designated $Cd_{1-x}Zn_xS/K_4Nb_6O_{17}$ ) were prepared via a simple deposition-precipitation method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy disp…