Materials Literature
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A Zn-SiC composite coating was prepared on steel sheet by adding silicon carbide to the general chloride zinc plating bath. The effects of current density, temperature, as well as mass concentrations of SiC and NH 4 Cl on the corrosion resistance and microhardness of the composite coating were studied. The optimized p…
Adding calcium carbonate fillers in paper products can save energy and cost,improve paper properties,and increase productivities.However,precipitated calcium carbonate(PCC) fillers cannot be used in acid and pseudo-neutral papermaking and have negative impact on sizing.In this paper,alkenyl succinic anhydride modified…
Wear behaviors of AZ91D and AM60B magnesium alloy under different ambient temperatures were studied.Results show that wear rates of two magnesium alloys experience similar trends upon loads under different temperatures.Wear transitions from mild wear to severe wear occur and the critical loads reduce with ambient temp…
The self-assembly technique of a single-stage emulsion polymerization was employed for preparation of three-dimensionally ordered polystyrene colloidal crystals with high efficiently.Three-dimensional ordered polystyrene colloidal crystals of 180 nm~320 nm were prepared by this method,and the polystyrene microspheres…
In order to study the genetic of yellow and green cocoon color,the economic traits,cocoon color and sericin content of parents Dazaolv,Huangbaixian and their hybrid were investigated.The results showed that the heterosis rate of the dead worm rate of the hybrid(Dazaolv × Huangbaixian) F1 was the highest with average 7…
ZTA(Zirconia toughened alumina)composite ceramics were prepared using a low-toxicity monomer N,N-dimethyl acrylamide(DMAA),mass ratio of Al2O3 to ZrO2 is 3∶1,the solid loading of suspension is 50 vol%.The effect of dehydration mode on the dehydration rate and property of green body were discussed.The effect of differe…
The woven bamboo utensil brazier, one of the representative weaving works in bamboo products, has aroused the author’s great interest after visiting the Changhua town in Ling’an city. This paper analyzes the patterns of the woven bamboo utensil brazier for a thorough understanding and research.
Using forging and extrusion process,the forming processes for lead brass valve were introduced,their qualified rates,cost and microstructure were compared.The results show that,viewed from the economy,using extrusion process more saves cost;viewed from the microstructure,the microstructure and its distribution of prod…
Alumina sol was prepared in the laboratory through the hydrolysis of aluminum isopropoxide and was applied in antistatic finishing of polyester fabric.Based on orthogonal experiment,the optimal baking conditions were obtained as follows: 160 ℃,1 min.After the alumina sol finishing,the half-life period of the polyester…
Using γ-Al2O3,NaX-zeolite,TiO2,SiO2 and coconut shell active carbon as the carriers,heteropolyacid supported catalysts were prepared by impregnation and reflux-adsorption methods.The catalytic activity of as-prepared catalysts for hydroxylation of benzene to phenol was investigated.The results showed that the as-prepa…
Methacrylate polyglycol monoester was synthesized by condensation of polyethylene glycol and methacrylic acid with toluene as the water absorbent.Mixed acid as the catalyst and hydroquinone as the inhibitor.The optimum reaction conditions:the molar rate of PEG to acrylic acid was 1 ∶ 2,the reaction temperature was 95…
Vanadium micro-alloyed high strength weathering steel was prepared in laboratory.The microstructure,mechanical properties and the precipitation behaviors of second-phase particles were investigated by the method such as tensile test,impact test,SEM and TEM.The effect of coiling temperature on microstructure and mechan…
With the improvement of people's living level,women requires more comfortable and aesthetic performance for their trousers.But traditional structure theory of trousers couldn't satisfy the consumers demand.So this paper made the fitting women's trousers as research object,through analyzing the women's body characteris…
In this manuscript,two kinds of mesoporous carbons(MCs) with different pore structures were prepared by soft-templating method.The microstructue of MCs was studied by high resolution transmission electron microscope,nitrogen adsorption-desorption isotherms and small angle X-ray scattering.Results showed that MCs with…
The thermal compression test for high-strength weldable Al-Zn-Mg-Zr alloy containing Sc was carried on Gleeble-1500 thermal simulator,the flow stress of the alloy during thermal deformation was studied,and the processing map of the tested alloy was established based on dynamic material model and PRASAD instability cri…
Aqueous polyurethane emulsions with ketone hydrazine crosslinking and silane coupling were synthesized,and their steady-state rheology,thixotropy and dynamic rheology were studied.The results indicate that the apparent viscosity of the polyurethane emulsions decreases with increasing of shear rate and the emulsions ex…
A CeO2-ZrO2 nano-material was synthesized by hydrothermal method with block polymer P123 as template and ZrOCl2·8H2O and Ce(NO3)3·6H2O as raw materials, and then modified by oleic acid after calcining at 400 °C. A CeO2-ZrO2-epoxy hybrid was prepared by well dispersing the oleic acid-modified CeO2-ZrO2 material in epox…
Semiconductor thermoelectric generator was used to convent waste heat into electricity.It has a good prospect for development because of small size,light weight,no vibration,no noise and environment-friendly.In this paper,the output properties of semiconductor thermoelectric generator(TEC1-12705) were investigated by…
Monodisperse SiO2 particles were prepared by Stber method.SiO2 colloidal crystal was synthesized by the vertical deposition method.The crystal forms and micromorphology were characterized by X-ray diffraction(XRD) and Scanning electron microscope(SEM).The results show that the SiO2 particles are monodisperse non-crys…
The tungsten carbide(WC) particles reinforced Ni-based coating were fabricated by plasma spraying.The microstructure of the coating was investigated,and the erosion wear resistance of the coating was tested.The results show that the coating has typical lamellar stacking microstructure and contains some pores.The reinf…