Materials Literature
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A novel mixed ionic composite electrolyte powder of BaCe0.8Y0.2O3-δ-Ce0.8Gd0.2O1.9(BCY-GDC in a molar ratio n(BCY): n(GDC) = 1:1) was synthesized via a two-step gel combustion method.The properties of BCY-GDC electrolyte sintered at different temperatures and the electrical performance of single cell with BCY-GDC elec…
A waterborne electromagnetic shielding conductive coatings was prepared taking conductive ultrafine nickel powders as filler,the oxide layers of which were removed by acid hydrochloric dilute and then the surface was modified by silane coupling agents(KH-570),and latex of waterborne polyurethane as blinder.The effects…
The design principle and calculation method of short-wave pass filter film was discussed in this paper.According to the technical requirements of filter film,TiO2 and SiO2 were chosen as the materials of high and low refractive indexes,respectively,based on the principle of equivalent refractive index and periodic sym…
The effect of chemical etching processes on phosphate laser glass surfaces was investigated.Under different process conditions(e.g.sonication and agitation),conventionally polished and subsequently washed phosphate glass plates were treated by submerging in both HCl and KOH solution either with or without BaCl2.Subseq…
In this paper,the effects of the electron temperature and lattice temperature distribution are discussed in different approximation electron thermal conductivity by two-temperature model during the femtosecond-laser ablation metal process.A one-dimensional numerical calculation for the temperature field of femtosecond…
The analysis methods,which consisted of scanning electron microscopy(SEM),X-ray diffraction(XRD),Fourier infrared spectrum(FT-IR) and X-ray photoelectron spectroscopy(XPS),were used to characterize the tin slurry produced in the process of Ferrostan continuous electrolytic tin solution.From the results,it was shown th…
The failure modes of thermal barrier coatings (TBCs) are briefed, and the current status of research on the factors affecting the service lifetime of TBCs are introduced. It is pointed out thermal barrier coating technology is currently one of the three key technologies of aircraft engines, and its research and develo…
The aim of this research is to study zirconia-based electrolyte materials to increase the commercial value of zircon concentrate as a side product of tin mining industries. Synthesis of CaO-Y2O3-ZrO2 (CYZ) and 8mol% Y2O3-ZrO2(8YSZ) was carried out by solid state reaction. The result shows that ZrO2 presents in tetrago…
A facile and room-temperature method is introduced to prepare AgX nanowire arrays by diffusion in anodic aluminum oxide(AAO) template.Extensive characterization of the samples have been performed using scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD).The results of the res…
Fe3O4/CdTe magnetic fluorescent nanocomposites were synthesized by the method of stepwise he-terocoagulation.Fe3O4 magnetic nanoparticles were prepared by hydrothermal coprecipitation of ferric and ferrous ions.The as-prepared nanoparticles were modified with oleic acid,and then formed the magnetic ferrofluids emulsif…
The progress on the synthesis of micro-nanometer Co and Co oxide are discussed,and various me-thods are briefly introduced.The most frequent methods employed to synthesize the Co oxide are hydrothermal and solvothermal approach.The performance of Co and Co oxide in catalytic and electrochemic field are also introduced…
Atom transfer radical polymerization(ATRP) of MMA was investigated using ionic liquids 1-butyl-3-methylimidazolium hexafluorophosphate(PF6) and 1-allyl-3-methylimidazolium chloride(Cl) as reaction medium.The polymerization of MMA in PF6 and Cl was formed homogeneous system and heterogeneous system,respectively.Results…
The composite explosive of RDX/AlOOH was prepared by sol-gel method under normal temperature and pressure,using AlCl3·6H2O as the precursors,N,N-DMF as the solvent for AlCl3·6H2O and RDX and 1,2-epoxypropane as gelating agent.The composite explosive of RDX/AlOOH was dried by supercritical CO2 fluid.The appearance of R…
Laminated veneer lumber(LVL) has high performance which improves the defects of fast-growing wood as a new type of boards.Started from the high physical performance of LVL,this paper provided some feasible methods in views of point,line,surface,volume,and color,to explore different approaches to manufacture different…
Polybutadiene/ethylene propylene diene methylene rubber blends filled with chitosan was prepared.The effects of chitosan on curing and mechanical properties,demouding and morphological properties of the compound were studied.The results showed that the blends had higher vulcanization rate with the chitosan content inc…
Through detecting the contents of amino acids and organic acids in the cells of two strains of S.erythraea including an industrial strain(strain A) and a wide-type strain(strain M) in four kinds of single nitrogen source,their nitrogen metabolism were compared.The results showed that,whether in same strain or in diffe…
Two forging methods for helical gears including rolling forming and floating die forming were introduced.Aimed at the two processes,different type helical gears were researched by both numerical simulation and physical experiments.Characteristics of metal flowing,forming defects and forming load were analyzed in diffe…
Dendronized polycaprolactone-poly(ethylene glycol)-polycaprolactone temozolomide-loaded microspheres were prepared by water/oil/water(W/O/W) double emulsion method with sodium dodecyl sulfate as emulsifier,dichloromethane as organic solvent,deionezed water as water medium.Microspheres with a range of 2.20 to 3.26 μm i…
Silver film was prepared on copper through galvanic exchange reaction by immersing the copper in AgNO3 solution,and then modifing the silver film by 12-hydroxy stearic acid(HSA) to prepare successfully the silver film modified by HSA.The morphology,superhydrophobicity,superoleophilic and the stability of water contact…
Poly[bis(hexan N-carbazol)]phosphazene(5) was synthesized by nucleophile substitution reaction of hexan N-carbazol with linear polydichlorophosphazene which was straightly prepared by one step method from PCl5 and NH4Cl.The structure was characterized by 1H NMR,31P NMR,IR and GPC.The thermal analysis test results show…