Materials Literature
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The effect of pre-recrystallization on microstructure and property of cold-rolled dual phase steel was studied through experimental.The recrystallization temperature and time were identified as 700℃ and 30s,by the evolution of recrystallization;the parameters of intercritical anneal processing were determined from the…
The textured structure on multi-crystalline silicon was fabricated by low-temperature acid etching method with optimized ratio and technical parameters in HF-HNO3-H2O system,and the surface morphology and reflectivity property of samples were characterized by scanning electron microscope(SEM) and incident-photon-to-el…
The research status of wateraborne polyimide at home and abroad was reviewed.The synehetic principle and technological approaches were analysised emphatically.Its applications in adhesives,photoresists,paints and enamels were introduced.
The microstructure and hardness analysis of TiC high manganese steel bonded carbide were investigated by optical microstructure,X-ray diffractrometry,transmission electron microscope and Rockwell hardness testing.The results show that the TiC steel bonded carbide is composed by granular carbide and austenite phase.The…
To study the effect of BCP on organic solar cell,a bulk heterojunction battery containing BCP layer was prepared.The battery has the structure as ITO/PEDOT:PSS/P3HT+PCBM/BCP/LiF/Al.Experimental results indicate that BCP layer has the effect of hole blocking and electron transport.The property of the cell varies with t…
Manganese substituted potassium hexaaluminate catalyst was prepared by co-precipitation method,sol-gel method and reverse microemulsion-mediated method.The title catalyst was calcined at 1 200 ℃ and characterized by XRD and TG-DTA techniques.The catalytic activity was evaluated for methane combustion.The specific surf…
Owing to special channels of mesoporous silica SBA-15,a novel silver-supported mesoporous silica antibacterial agent(Ag/SBA-15) was synthesized by one-step method with adding Ag into the process of preparing mesoporous carrier.Ag/SBA-15 structure was characterized by X-ray diffraction(XRD),transmission electron micros…
Static characteristics of blades under six different restraint conditions were calculated by ANSYS software,taking the blades of axial compressor as the subject of the research.The stress and deformation regularity of distribution were obtained..The results of the study indicated that different constraint has no signi…
A novel Keggin-type supramolecular compound,[Cu2(phen)4(SiMo12O40)](1),has been synthesized under hydrothermal conditions and characterized by elemental analysis,IR and single crystal X-ray diffraction.It crystallizes in the triclinic system,space group P21/c,a= 1.303 2(3)nm,b=1.152 2(2)nm,c=2.340 8(8)nm,β=108.29(3)°,…
β-PbO2 electrode on stainless steel were prepared in Pb(NO3)2 plating solution adding Mn(NO3)2 by DC deposition.SEM,XRD and linear sweep voltammetry(LSV) were used for the analysis of the surface structure,phase composition and the catalytic activity of oxygen evolution potential analysis.The results show that as the…
The thermo-oxidative aging resistance,anti-reversion characteristic and ozone aging resistance of antioxidant DDA were experimentally investigated and compared to common antioxidants.The results showed that DDA possessed excellent anti-reversion characteristic and ozone aging resis-tance.DDA showed dual effect of agin…
Methanol fuel is recognized as a substitute fuel.Based on the comparison of the properties of methanol and pure gasoline,the paper analyzes the advantage and development trend of Methanol gasoline alternative fuel,and the Security of Methanol gasoline.This paper introduces the application and study of methanol gasolin…
Hydroxypropyl methylcellulose acetate succinate(HPMCAS) was successfully synthesized from hydroxypropyl methylcellulose(HPMC),during the process of which succinic anhydride and acetic anhydride were used as esterifying agent and acetic acid as organic solvent.By varying the amount of factors,HPMCAS with different cont…
Selective Non-Catalytic Reduction(SNCR) has a strict requirement on temperature,only after acquiring the exact temperature distribution in the furnace,the location of ejecting reduction reagent can be fixed.O2,CO and some other components shall have some influence on the procedure of SNCR,and the distribution of initi…
The application of response surface method in the research of the formulations of PVC heat stabilizers was studied.According to Box-Benhnken design principle,a response surface analysis table of the three factors and three levels and the experimental programs of thermal stability time were designed.SAS was used to ana…
The flower-like ZnO nanocrystals are prepared through one-step methods of reflux.The structure and morphology of the products are examined by SEM,XRD,FT-IR.The results indicated that the uniform flowerlike ZnO are actually obtained,which are consisted of nanosheets from self-assembled nanocrystalline.The as-synthesize…
Objective To compare the antitumor effects between paclitaxel-loaded liposomes and paclitaxel in vivo on S180 solid-tumor bearing mice.Methods Twenty Kunming mice bearing S180 solid-tumor xenograft were distributed into four groups randomly:contrast,empty-liposome,free paclitaxel and the paclitaxel-loaded liposome.Tre…
Twin-wire indirect arc welding is a novelty welding method with research value in theory and application prospect.Following the theory of magnetic fluid dynamics,we established the numerical model of twin-wire indirect arc in three dimensions.The mathematic equations are solved in coupled electric field,magnetic field…
High yield ratio was a common problem for products made by CSP process.To reduce the yield ratio of SAPH370 steel,based on orthogonal experiment,the effect of finish rolling temperature(FT7),air-cooling temperature(ACT) and coiling temperature(CT) on yield ratio were investigated by two-stage cooling process,the stati…
The compositions of the bath and dross in the 55%Al-Zn pot for hot dip galvanizing have been detected.The effect of the temperature on the dross has been analyzed based on the Al-Zn-Si-Fe thermodynamic phase diagrams.The XRD result shows that the dross contains FeAl3 as the main component and a little Al11V as well.Th…