Materials Literature
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In order to improve absorption and utilization of solar light,carbon,cobalt co-doped mesoporous nano titania with anatase crystalline structure(C,Co-MTiO2) was prepared using templating method.The catalyst was characterized by techniques like N2 physisorption,X-ray diffraction(XRD),HRTEM,UV-Vis.The characterization re…
An imidazoline quaternary ammonium was synthesized from tung oil,rosin,diethylenetriamine and chloroacetic acid.The corrosion inhibition performance of the product on A3 steel in 15% phosphoric acid solution was investigated by weight-loss method.The anti-corrosion performances of the product and the mixture of the pr…
A supported photocatalyst PW11Fe/D301R was prepared by loading the keggin substituted heteropolyanions PW11O39Fe(Ⅲ)(H2O)4-(PW11Fe) onto the anionic exchange resin D301R through ion exchange,and is used for visible light degradation of organic dye contaminant rhodamine B(RhB) in aqueous solution with examination of the…
Taking ternary eutectic alloy as research object, a multiple and heterogeneous solidification microsegregation model was established using Thermo-Calc coupling algorithm, and the computer simulation program was designed based on the model, Al-10Cu-2.5Mg, Al-4.5Cu-1.0Si and Fe-40V-40Cr alloys were numerically simulated…
Effect of forging and heat treatment on microstructure and property of lead brass is studied.Heat treatment in 500~700 ℃ temperature is used for casting lead brass after forging in 720 ℃,60%deformation.The results show that,the cast microstructure is coarse dendrite.The grains are elongated after forging.Compared with…
Objective To evaluate the role of the cell extracts of keratinocyte stem cells(Keratinocyte enriched with epidermal stem cells,KSC) express keratinocytes phenotype of reprogramming of the adipose derived stem cells(Adipose derived stem cells,ASCs).Methods Keratinocyte(KC) were collected in conventional methods,then KS…
Nano-SiO2 composite layer was prepared on aluminum alloy surface via micro-arc oxidation.This was achieved by adding nano-SiO2 particles into the electrolyte.The microstructure,element distribution and phase composition of the nano-SiO2 composite layer were characterized using scanning electron microscopy,energy dispe…
Thermal power plants need to ravel out how to ensure the safe and economic operation and control of condensate polishing plants(CPP).Two condensate polishing treatment devices were taken as the research objects to investigate their operation and control modes.The field test results showed that,the hydrogen conductivit…
Ordered TiO2 nanotubes array on Ti meshes were prepared by anodic oxidation with ethylene glycol solution of NH4F electrolyte.The structure and the morphology of TiO2 nanotube were characterized by XRD and SEM,respectively.The ultraviolet-visible absorption spectrum of the samples was measured by UV-Vis spectrophotome…
The thermo-regulated fiber/cashmere blended yarn is prepared in the same spinning technology with five different blending ratios,and the effects of different blending ratios on physical and thermo-regulated fiberproperties of thermo-regulated fiber/cashmere blended yarn are studied.The results show that,when the therm…
Though carbon/epoxy composite structures are widely used,during the process of cure with heat,serious deformation may happen.Layer designing is not only to satisfy the demand of structural strength and stiffness,but also to reduce the deformation.The elementary research has been developed in this article to find out t…
The corrosion environment of cargo oil tank(COT) was simulated according to performance standard for corrosion resistant steel of IMO in this paper,to study the corrosion behavior of two different ship hull steel on the upper deck of COT.The results showed general corrosion in wet-dry environments contained H2S,the co…
On the basis of a domestic nuclear power construction project and analysis on material characteristics that the main steam and main feedwater pipeline of the conventional island in nuclear power plants should have,the material selection of domestic and foreign congeneric pipelines were widely collected and studied.Mor…
Solderability is one of the most important properties of PCB assembled products.This paper aims to discuss the solderability of ENEPIG.Firstly,it makes a comparison of properties of ENIG and ENEPIG.Secondly,it verifies the potential factors that may influence welding through experiments.And then a conclusion can be ma…
The RPP is taken as the object of research in this paper,and a series of modified RPP are prepared by the blend under the condition of nanometer calcium carbonate modified by both different toughening agent and the coupling agent.Then the blending modification process of RPP is studied under the conditions of taking t…
The author summarizes the production and market of NBR both at home and abroad,and analyzes the domestic development trend.The author put forward some advices on development of domestic NBR industry.
A series of new solid samarium quaternary complexes with fatty carboxylic acid[Sm-( DBM)2( MA)-phen,Sm-( DBM)2-OA-phen,Sm-( DBM)2-LA-phen,Sm-( DBM)2-MA-( AN)2,Sm-( DBM)2-OA-( AN)2,Sm-( DBM)2-LA-( AN)2]were synthesized by coordination of samarium( Sm) using dibenzoyl methane( DBM) as the primarily ligand,fatty carboxyl…
For the purpose of analysis the difference of process performance of high strength pipeline steel in hot rolling process,yield strength of X70,X80 and X100 at high temperature was measured by Gleeble 3500 simulator at 400-800 ℃.The results show that the high temperature yield strength is affected by temperature,the ph…
High phosphorus content flame retardant copolyester was prepared by pre-esterification of flame retardant and ethylene glycol at low temperature.And the process of preparing flame retardant copolyester was optimized.The results indicated that after pre-esterification,the flame retardant met the high temperature requir…
A series of SrIn2–xO4:xSm3+ phosphors were synthesized by a high temperature solid-state method,and its luminescent properties were investigated.The SrIn2O4:Sm3+ phosphors,which could be excited by 410 nm radiation excitation,could create the red emission(607 nm) corresponding to the 4G5/2→6H7/2 typical transition of…