Materials Literature
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A series of ZnFe2O4/expanded graphite composites (EG/ZF) were prepared by the chemical precipitation method. The structure, composition and morphology of the as-prepared samples were characterized. Taking methylene blue (MB) as the simulate organic pollutant, the influences of various factors on the decontamination of…
Er3+-Yb3+ co-doped ZnO-B2O3- SiO2-TiO2 transparent glass ceramics were synthesized by melt crystallization technique. Samples were characterized by DSC, XRD, SEM, UV-Vis-NIR and fluorescence spectra and the factors affecting the crystallization of glass ceramics were analyzed. The results indicated good crystallizatio…
A new trimetallic compound with formula (NH 4 )Ni 2.4 Co 0.6 O(OH)(MoO 4 ) 2 •1.5H 2 O was obtained by hydrothermal synthesis. The solid was characterized by X-ray diffraction, thermal analysis (thermogravimetric analysis and differential thermal analysis), Fourier-transformed infrared spectroscopy, Laser Raman spectr…
Porous CeO2 nanostructures were synthesized by a simple template method using cotton fibers as biomaterial template. The phase structure and morphology of the product were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM). The UV-block…
Synthesis and characterization of a novel hexabenzocoronene (HBC) derivative bearing swallow-tailed fluorinated alkoxy chains are described. The six peripheral fluorinated chains, well known for their low van der Waals forces, should result as expected in reduced inter-columnar interactions. The UV−vis absorption spec…
This work reports the flammability properties of Nanocomposites reinforced with silica and PTFE nanoparticles and toughened with an elastomeric ethylene-vinyl acetate (EVA). Through trial and simulation study of the flame retardant thermoplastic polymer and melting characteristics of PP in the combustion process.The s…
Magnesium-calcium binary alloys were prepared with pure Mg and pure Ca to study the influence of Ca on the microstructure of Mg-Ca binary alloys. The results showed that with the increase of the content of Ca, there is a sharp decrease of the grain size of Mg alloy with Ca content in the range of 0 to 0.5%, then there…
A novel non-halogen intumescent flame retardant agent (IFR) was prepared by using phosphoric acid, pentaerythritol and aniline as raw materials, a flame-retardant poplar wood veneer was prepared by treating the veneer with IFR. The influence factors of flame retardant processing technology on poplar wood veneer were s…
Positron annihilation lifetime spectroscopy and Doppler broadening annihilation line-shape measurements were carried out in 40 MeV alpha-irradiated undoped InSb. After irradiation the sample was subjected to an isochronal annealing over temperature region of 25°C–400°C with annealing time of 30 min at each set tempera…
It is shown that the water temperature ranges in cooling towers given in the regulatory documents are not consistent with the standardized heat loads. It is also demonstrated that the existing criteria for estimating the effect from retrofitting of cooling towers are far from being perfect. The notions of cooling towe…
The behavior of C atoms during the thermal oxidation of a SiC surface has been a subject of controversy. In this study, we oxidize a SiC surface by atmospheric-pressure plasma treatment near room temperature. We find that more C atoms are included in the SiO2 film after plasma oxidation than after conventional thermal…
The preparation of lactic acid (LA) from the conversion of carbohydrates through chemical ways has received much attention as a way of producing platform chemicals from renewable resources, but harsh reaction conditions were usually employed especially when environmentally benign solvent (water) was used as the reacti…
Coupling the force flow field with the phase field model for the isothermal growth of dendrite, Sola algorithm is used to calculate the flow speed and pressure of liquid metal, Using double grid numerical method to reduce the calculation amount of computer simulation, The space factor and time factor are introduced to…
A series of new organic dyes, 2-(2,6-bis((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)-pyran-4-ylidene)-2-cyanoacetic acid (OD-1) and 2,2′-(2-((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)-1H-indene-1,3(2H)-diylidene)bis(2-cyanoacetic acid) (OD-2), were synthesized as a sensitizers for the application of dye-sensitized so…
The structural behavior of ${\mathrm{Np}}_{2}{\mathrm{Co}}_{17}$ is investigated by means of high-pressure diamond-anvil compression measurements and is compared with that of the isostructural compounds ${\mathrm{Lu}}_{2}{\mathrm{Co}}_{17}$ and ${\mathrm{Lu}}_{2}{\mathrm{Ni}}_{17}$. The ${\mathrm{Th}}_{2}{\mathrm{Ni}}…
Microstructures of metal micro parts after microforming at elevated temperatures must be evaluated due to mechanical properties depend on average grain size. In this work, the effects of specimen diameter on the microstructure and microhardness of a hot-extruded AZ31B magnesium alloy were studied. Obvious size effect…
The oxidation resistance of SiAlONs is one important property. In our work we present a test method to characterize its anti-oxidation property with the non-isothermal oxidation process using Thermo Gravimetric Analyzer (TGA). The oxidation starting temperature (Ts), maximum oxidation rate temperature (Tm) and the val…
In the microwave heating (MH) de-nitration method developed in Japan, a mixed solution of uranyl nitrate and plutonium nitrate recovered from the spent fuel in the reprocessing plant is converted directly to mixed oxide (MH-MOX) powder. This MH-MOX powder is utilized to fabricate MOX fuel with UO2 powder for FBR. The…
Oxidative stable hybrid thermosets derived from silicon-containing polyarylacetylene (PSA-V) and branched methylvinylcyclosilazane (b-MVSZ) have been prepared, and b-MVSZ was synthesized by coammonolysis reaction of methylvinyldichlorosilane and vinyltrichlorosilane, which was characterized by using GC-MS, FT-IR, 1H N…
Organic-inorganic hybrid block Poly (silane-b-arylacetylene) (PSbA) have been synthesized through condensation polymerization between chloro-terminated polysilane and diethynylbenzene Grignard reagent, and chloro-terminated polysilane was synthesized through condensation polymerization of dichloromethylvinylsilane in…