Materials Literature
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Nitric Oxides are recognized as one of the main air pollutants.Because of the high denitration efficiency of selective catalytic reduction(SCR),this technique becomes the main method of the coal-fired power station boiler in removing NOx.This paper combines the mechanism of SCR denitration and it is summarized the res…
The porous silica ceramic materials and parts were fabricated by pelletizing the pore-forming agents and silica particles with PVA,screening the granulation and then adding it to the silica slip,aging the slip in the vacuum conditions and casting the slip under pressure.The influence of the content of the pore-forming…
Influence of magnesium content on the microstructure and electrochemical performance of Al-Zn-In-Mg-Ti-Ga-Mn alloy sacrificial anode were investigated by means of microscope,scanning electron microscope(SEM) and electrochemical methods.The results indicated that with the increase of Mg content,segregative phase increa…
Based on the analysis of the advantages and disadvantages of various methods to produce gratings,a method to produce low-frequency holographic grating was put forward using plane flat crystal reflection.To ensure the quality of the grating,the original light path was greatly simplified.The optical path was proved to b…
Peptide can self assemble through the noncovalent bond action,such as hydrogen bond,hydrophobicity and π-π accumulation,and form different peptide molecular aggregations,for example,molecular brick,molecular switch,molecular paint and nanofiber.These self-assembling peptides are characterized by their good biocompatib…
A composite molecular sieve of Y/MCM-48 was hydrothermally synthesized at different crystallization temperatures and crystallization time using ethyl orthosilicate as Si source and cetyl trimethyl ammonium bromide as a template agent with fluoride.The sample was characterized by X-ray diffraction,Fourier transform-inf…
High properties of activated carbon was prepared from FR-1 phenolic resin laminated board by CO2 activation.The effects of activation temperature,activation time and CO2 flow rate on the properties of the obtained carbons were investigated.The product has high porous structure with BET surface area of 1 198 m2/g,total…
In this paper we have designed and synthesized two novel europium complexes,which doped it into PVK as the light-emitting layers to make EL devices,EL properties were measured.The mechanism of energy transfer in the doped system
Aiming at the problem that the prototype method of knitting dress designing has difficulty in controlling the changes of the sample sizes of knitted garments with high elasticity,this thesis tests the data of various parts of the cut-parts with high elastic knitted fabric on mannequin and human body with different spe…
The method discrete dipole approximation(DDA) was used to theoretically calculate the extinction spectrum of ordered Au nanosphere arrays with different radius on the glass substrate.The DDA simulation of the ultraviolet-visible(UV-Vis) extinction spectra of ordered Au nanosphere arrays with various radius shows diffe…
A novel Ti/MCM-22/MCM-41 composite material was prepared by Nano self-assembly method.The synthesized material was characterized by XRD,N2 adsorption,SEM,and subsequently applied in the Acid Red B degradation.Several parameters such as dosage of catalyst,reaction time,pH of wastewater,and initial concentration of dye…
The low cycle fatigue property of the Zr-4 cladding before and after the neutron irradiation is investigated in this paper. The stress-strain curve and the Coffin-Manson relation of the pre-irradiation specimens are first obtained. Then an estimation of the effect of the neutron irradiation on the low cycle fatigue pr…
La1-xSrxCoO3-δ conductive ceramics with single-phase perovskite structure and good crystallization were prepared by sol-gel method.The structure and properties of La1-xSrxCoO3-δ ceramics were discussed,and its possibility of application in electrical contact materials was also investigated.Results show that with the d…
Susceptibility to intergranular corrosion of Incoloy 800 alloy annealed at various temperatures ranging from 550 ℃ to 800 ℃ for 4 h was investigated by means of electrolytic etching in oxalic acid,double-loop electrochemical potentiodynamic reactivation(DL-EPR) and electrochemical impedance spectroscopy(EIS) technique…
The branched unsaturated polyester resin was synthesized from ethylene glycol,pentaerythrite(glycerin)and fumaric acid.The products were characterized by FTIR and the properties were investigated by GPC,DSC and TGA.The results showed that the optimal polyol amount was 5%(based on the molar of fumaric acid)and the suit…
The hot compression tests of Al-Mn-Mg-RE alloy were performed at 300 ℃～500 ℃ under the strain rate of 0.01 s-1～10 s-1 on Gleeble-1500 system.The results show that the true stress-true strain curves exhibit a peak stress at a critical strain,and then,the flow stress decreases monotonically.The peak stress decreases as…
In this paper,1,8-naphthalimide and its derivatives were studied by DFT//B3LYP density functional method with 6-31G basis set.The results show that:1,8-naphthalimide molecule and its derivatives have certain rigidity.Introducing strong electron-donor and acceptor groups is conductive to electronic transitions in view…
The deoiling agent XP is applied to soaping process of polyester-cotton blends.The influence of the dosage of deoiling agent on deoiling and soaping effect is discussed.The results show that the deoiling agent XP has a perfect deoiling ability and no negative effects on soaping and color fastness under the condition o…
The microstructure and texture in DP590 dual phase steel through different process were studied respectively by means of field emission scanning electron microscope(FESEM) and electron back-scatter diffraction(EBSD).The results show that the microstructure have a large change from hot rolling and cold rolling to conti…
A new kind of left-handed material(LHM) was proposed according to the E-shaped structure has the effctive inductance and capacitance which are essential conditions to produce negative permeability.The new structure used Eshaped split ring resonators to achieve negative permeability and wires to achieve negative permit…