Materials Literature
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Alumina magnesia castable has excellent high temperature strength,creep resistance,thermal shock resistance and high end-use temperature. For high resistance to alkaline slag,alumina magnesia castable is widely used in ladle wall. Since microsilica has grerat influence on the properties of alumina magnesia castable,mi…
Silica microspheres are of great interest in several areas such as liquid chromatography, medicine, biochemistry, colloidal chemistry and aerosol research. In this work, porous silica microspheres as packing matrix of HPLC were prepared from tetraethoxysilane(TEOS) by Sol-Gel method with carbon dioxide supercritical f…
A-TIG welding is a new variant of high-efficiency TIG welding using activating fluxes to improve weld penetration.Allposition DC(direct current) A-TIG welding,pulse A-TIG welding and step-pulse A-TIG welding have been employed to weld 304 stainless steel piping,which is commonly being used in nuclear power plant.Resul…
The corrosion causes of the crevice in salt equipment pipeline were analyzed. The corrosion protection measures,process and materials were put forward. And the corrosion protection of the salt equipment was explored.
The composition,optical and second harmonic properties of Er doped GaSe crystals grown by modified Bridgman technology are investigated.It is found that Er content is not uniform in the grown crystals and much lower than that in the melt compositions.Higher Er doping level makes the optical quality decrease.The spectr…
This research aimed to prepare tomato peel waste-corn starch films by using casting method with tomato peel waste as the raw material, corn starch and glycerol as additives. The effects of tomato peel waste content, corn starch content and glycerol content on the properties of tomato peel waste-corn starch films were…
Effect of alloy elements and coiling temperatures on microstructure,mechanical properties and HIC performances for X65 HIC-resistance pipeline steel. The results showed that it was helpful to improve the strength,toughness and HIC properties by the addition of Cu,Ni,Mo alloy or lowering the coiling temperature. For th…
The effects of relaxation time after rolling on microstructure and mechanical properties of X100 pipeline steel by tensile testing,impacting testing and microstructure observing.The results show that with the prolongation of relaxation time,the bainite ferrite laths became wide and dislocation density inside laths red…
Artificial simulation of natural light in 295- 400 nm(ultraviolet light) effects on the performance of chromefree leather. The experiments discovered the leathers' physical mechanical properties and surface color changed after 48 h UV exposed. Among them the leather surface color becomes shallow and the tear strength,…
In this paper, VRLA batteries were tested to explore the effects of three kinds of carbon with different specific surface areas as negative electrode additives on the battery performances. The results showed that the high specific surface area carbon A2 can greatly improve the conductivity of the negative active mater…
Polyester staple fiber for knitting required high quality, specially the content of defects. At pres-ent, there are two kinds of fiber defect inspection method, one is hand sorting method, the other is raw cot-ton analyzer method, but these two methods can't inspect the defect under 0.1 mg. A new inspection methoddyei…
The gas- solid two- phase flow and flow field characteristics of active calcium circulating flue gas desulfuration( FGD) reactor were the key factors which influenced directly device operation. The k- e turbulence model was used to make numerical simulation of the reactor. The resistance in different parts of reactor…
[Objective] The research aimed to analyze the relationship between detection indicators and applicability of wrapping paper.[Method]With tobacco wrapping papers as test materials,the contents of sheet-fed weight,moisture content,thickness,stiffness of the crease and friction coefficient were determined,the differences…
Doxorubicin(DOX) loaded poly(lactic-co-glycolic acid)(PLGA) microparticles with internal pores(MP-D) were developed for long-acting release in pulmonary inhalation treatment. The PLGA microparticles exhibited favorable aerodynamic properties for pulmonary delivery. In vitro drug release profile suggested that MP-D hav…
Nd-doped ZnS nanoparticles were prepared via liquid-phase coprecipitation with different doping concentrations. The crystal structure of the nanopowders was tested by X-ray diffraction(XRD) and the luminescent property of Nd-doped ZnS nanoparticals measured by absorption and photoluminescence spectra.The factors influ…
The effect of relative viscosity of PA6 on the mechanical properties and structure was investigated.The results show that the mechanical properties of carbon fiber reinforced PA6 decreased with the higher relative viscosity.When the mass fraction of carbon fiber is 15%,the relative viscosity of PA 6 is 2.7,the tensile…
The electrode of Ni(OH)2nanoflakes standing on nickel foam has been prepared in hydrothermal method.Its morphology has been examined by scanning electron microscopy(SEM),the phase structure of Ni(OH)2has been analyzed by X-ray diffraction spectroscopy(XRD),and the electrochemical capacitance of the electrode been inve…
The boundary microstructure between matrix and dense inner sublayers of the ceramic coating formed on AZ91 magnesium alloy substrate by micro- arc oxidation(MAO)was studies. The coating was prepared in an alkaline electrolytic solution,employing constant-current controlled AC power supply with current density of 10 to…
Based on researching for processing and product quality of PET staple fiber over a long period oftime, appearances of defects and dyed defects produced in the spinning process were studied. The causesof the defects were analyzed, such as quench device and spin pack, the corrective measures in spinning pro-cess and ope…
In order to study the influence of the structural parameters of liner on jet formation of titanium alloy,the forming process of TC4 titanium alloy cone shaped charge liner was simulated using Autodyn-2D dynamics software. The impact of the liner angle,the aspect ratio,the thickness and the initiation ways on titanium…