Materials Literature
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In order to improve the luster and its durability of worsted fabrics,polytetrafluoroethylene(PTFE) microporous membrane and conventional decatizing wrapper are laminated to develop a new composite decatizing wrapper.The properties of the finished fabrics are measured and analyzed.The results show that,the structure of…
Objective To investigate the influence of Fe3O4 magnetic nanoparticles on human keratinocyte cells(HaCaT cells).Methods HaCaT cells were incubated with different concentrations of Fe3O4 magnetic nanoparticles for 4 h at 37℃ with 5% CO2.Then transmission electron microscopy(TEM) was used to observe the way nanoparticle…
Cathode materials consisting of Pr0.6-zSr0.4Co0.8Fe0.203-δ(z=0,0.02,0.05) were prepared by the sol-gel process for intermediate-temperature solid-oxide fuel cell.Pr0.6-zSr0.4Co0.8Fe0.203-δ(z=0,0.02,0.05,0.1) had an perovskite structure after sintering at 900℃ for 6h.Using impedance spectra,the area specific resistance…
Based on the medium and long-term development targets of nuclear power given by China Academy of Engineering Physics and current situation and future development goal of nuclear fuel cycle in China,the mainstream reactor types M310 and AP1000 as research objects,the possible scenarios of nuclear fuel cycle of PWR were…
In double dielectric barrier discharge aqueous electrodes reactor(DDBD),hydrogen peroxide was prepared in a mixture of hydrogen and oxygen by using DBD discharge with inert gas(Ar,He and N2)as additive gas.The influence of different inert gases on the breakdown voltage and energy efficiency of H2O2synthesis was studie…
Porous silicon gettering was an effective method for reducing impurities and defects in crystalline silicon and improving conversion efficiency of solar cell.Porous silicon layer was prepared on the surface of monocrystalline silicon by electrochemical etching.The characterizations of porous silicon layer were investi…
The Ni-based composite coatings were prepared through electrochemical deposition method,and their wettabilities were studied after modified with low-surface-energy material FAS.The morphology and component of as-prepared coatings were characterized and the effect of TiO2 nanoparticles on morphology and wettability was…
Three-phase voltage-type PWM rectifier control has become mature,and the most classic method is hysteresis control method,this mothod gets data for calculation through continuous analog discrete sampling,so selecting sample period is critical to control precision.Under comprehensive consideration of the three-phase cu…
The layered Li1.3Ni0.35Mn0.65O2.3 was synthesized with co-precipitated metal hydroxide precursors Ni0.35Mn0.65-(OH)2 and characterized by XRD,SEM and charge discharge cycling.The effect of sintering temperature and sintering time on the electrochemical performance was studied.The result of XRD and SEM shows that the p…
To improve the corrosion resistance of Q235 steel in heavy air pollution environment,the corrosion behavior of electroless Ni-P coating in the snow water of Wanghua district in Fushun,a north heavy industry city in China,was studied.The surface morphology of the coating was observed by optical microscopy,and the adhes…
The technology of buried heat pipelines has been used more and more because of the demand for the urban construction,environmental protection and energy conservation.Therefore,much attention should be payed to the problem of soil corrosion urgently.In this study,the corrosion behaviors of a typical heat pepeline steel…
In this paper,the relative setup and application of an oscilloscope for testing the electrical fast transient /burst(EFT/B),surge and electrostatic discharge(ESD) generators in EMC are introduced.The similarities and differences of the setup of the oscilloscope in these three measurements are analyzed.
The thermal decomposition behaviors of AP and AP/Catocene were studied by DSC and TG analysis,and the activation energy Ea1,Ea2,Ea3 and the pre-exponential factor lgA1,lgA2,lgA3 were calculated by Ozawa and Kissinger method.In results of DSC,there is a additional exothermic peaks at 180 ℃ with Catocene which belongs t…
In the beginning,this article constructs the mechanical model related to ship underwater explosion.Then on the basis of applying LS-DYNA software to numerical simulation and calculation,it analyses the response of ships under the influence of shock wave load from the angles of displacement,speed,acceleration and stres…
By vacuumizing method,BP2000 carbon owning large specific surface area was prepared in supercapacitor.The performance of the capacitor was studied by cyclic voltammograms,constant current charge/discharge methods and impedance test.The best time of vacuumizing was 30 min,the specific capacitance of carbon electrode wa…
A confined space quantitative evaluation method of vapor phase corrosion inhibitors was put forward based on summarization of foreign and domestic literature on vapor phase corrosion inhibitors evaluation.The test conditions of the method were optimized through experiments.The results showed that the best experimental…
Density functional theory was employed to study the growth mechanism of atomic layer deposition of ZnS on the silicon surfaces.Both the diethylzinc(DEZn) and the H2S half-reactions proceed through a C2H6 elimination mechanism.By comparison with the reactions on silicon surfaces with single and double —SH sites,we find…
Nano-SiO2 was prepared by sol-gel method.In this paper,three kinds of drying conditions on the preparation of Nano-SiO2 powders have been studied.The surface structure of Nano-SiO2 has been analyzed.The results show that:The Nano-SiO2 powders with optimal dispersibility and higher specific surface area grains with ave…
Pulsed laser deposition(PLD) is a modern method to prepare many kinds of functional materials.The process can be divided into three stages:laser ablation,plasma expansion,and film growth.There are many complex phenomena in these processes,and we shall briefly describe the current research on the mechanism of PLD.The d…
By taking chemical foaming injection molding technology as main line,the microcellular foam polypropylene materials were made under the condition of twice-open mold.By means of XRD and DSC technology,the effect of crystallization properties on foaming behavior polypropylene materials was analyzed.The results showed th…