Materials Literature
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Structural parameters of impeller head's blade and the theory of impact on the stress is analyzed in it,and different structural parameters of the linear blades,forward curved blades and backward curved blades are calculated under the same blade speed and same initial conditions,by comparing the stress of three differ…
this article describes the working principle of high-concentration hydrapulper equipped with a new-type knife rotor as well as the test result on decomposition of various fiber materials.The test shows that this new-type hydrapulper with knife rotor can be applied to shredding various fiber materials with short time,…
The effect of barium content on the conductivity of samples prepared by conventional solid state reaction procedure was studied.The samples were characterised by XRD,SEM,density and ionic conductivity measurement.Powder X-ray diffraction data of Li6BaxLa3-xTa2O12.5-0.5x(x=0-2) indicate that single phase oxides with ga…
The preparation methods of perovskite-type complex oxides in recent years are summarized.The potential applications of perovskite-type oxides are analyzed.
Based on the assumption that the damage mechanisms of materials under tension and compression are different,the nonlinear damaging behavior of refractory materials was studied by micro-mechanics and a multi-scale generalized self consistent scheme(GSCS) model at constant temperature.A method of simulating the nonlinea…
Polyamidoamine(PAMAM) dendrimers possess unique structural features such as symmetry with hyperbranced formation,various inner cavities and functional terminal with multiple groups,and thus have broad application perspectives in the fields of analytical technology,catalyst,thin film coating,biomedicine and so on.In th…
Silicon oxide thin films deposited by reactive ion-beam sputtering(RIBS) of Si targets in Ar/O2 producer gas mixture were investigated.The refractive index n,extinction coefficient k,and stoichiometry were dependent on the oxygen concentration in Ar/O2 producer gas mixture and the deposition rate.Silicon oxide films w…
In order to improve the ionic conductivity of the Ce0.8Sm0.2O1.9(CSO)based oxygen-ionic conductor,Ce0.8Sm0.2O1.9-La9.33Si6O26(CSO-LSO)composite materials were prepared by a two-step coprecipitation process.Phases of the samples were analyzed by using X-ray diffraction,and the microstructures were investigated by using…
The preparation methods of waterborne multicolor paint and its coating system in architectural decoration were discussed in detail;the advantage and the development of the future direction coating system waterborne multicolor paint were briefly introduced.
Rich-Burn/Quick-Quench/Lean-Burn(RQL) combustor was focus research areas for low pollution combustor in recent years.It was one of preferred strategies to reduce NOx emission in aeroengine applications.The characteristics of RQL combustor was overviewed.The advantagences of the RQL combustor was proposed based on desi…
The corrosion behavior of the 20MnMo and BHW35 welded joint is studied.The welded joints are put in solutions with different pH value of the NaOH or HCl acid-basic to examine the corrosion behavior after 456 hours at room temperature condition,then the microstructure is examined and the weight loss of samples is measu…
In allusion to the corrosion resistance and temperature resistance requirements of desulfurization tower-environmental protection structure,this paper carried out a series of mechanical experiments with the corrosion resistance resin matrix at different temperatures,and had a preliminary discussion on its constitutive…
The low hardness and poor wear resistance of pure copper result in the less effective use in metallurgical application.In order to increase the microhardness and wear resistance,the pure copper surface with the electro-deposited nickel layer was chromized-aluminized by slurry packing cementation process,and then Cr-Al…
Natural rubber itself has a unique combination of properties,increased by the addition of modified clay comprehensive performance rubber compound.Through change content of modified clay,Test its mechanical properties and the hot air aging performance.The result indicated,The physical mechanical property test indicated…
Under microwave irradiation,stable fluorinated N-isopropylacrylamide(FA-NIPAAm) temperature-sensitive microgel emulsion was prepared by surfactant-free emulsion polymerization.The composition of microgel was characterized by FT-IR.The size changing at different temperatures and the LCST was measured by PCS.The morphol…
Nm activated carbon fiber have a very large specific surface area.The high degree of affinity can form a strong purification biological membrane.Adsorbs,absorption and intercept the water solubility and suspended state pollutants organism will eventually into organic inorganic.With the experiment by artificial,the cha…
The intron 1 and intron 2 of myostatin gene in Trachidermus fasciatus were amplified and sequenced.The two introns are 325bp and 835 bp long respectively and contained the typical GT-AG ends of erkaryotic genes.Meanwhile the intron 2 contained a(AC)14 microsatellite sequence.The mitochondrial control regions of three…
Finite element method,test and mathematical statistics,comprehensive analysis methods,low-cycle fatigue life and reliability of metal bellows go along some research and discussion.Through the material fatigue life of bellows testing,software simulation,product fatigue life testing and research of relevant data,the fat…
Plasmonic Fabry-Perot nanocavity was constructed by filling a piece of optical nonlinear Kerr medium into the metal gap waveguide to realize optical bistability in nanodomain.Finite-difference time-domain simulations showed that the optical bistability effects could be observed in low incident power due to the local s…
A new furan resin was prepared with furfural and furfuryl alcohol which was occured as condensation reaction,and oxalic acid as a catalyst.The results showed that when the mass ratio of alcohol and furfural was 7:3,oxalic acid as raw material quality and the amount of 0.33%,the reaction time at reflux temperature was…