Materials Literature
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The microstructure of commercial pure titanium processed by equal channel angular pressing (ECAP) at room temperature was studied by using optial microscopy and TEM.The functions of three deformation mechanisms including slipping,twinning and grain turning during the plastic deformation at room temperature were discus…
A new chip design paradigm called Network-on-Chip(NoC) offers a promising architectural choice for future System-on-Chip(SoC).Triplet-based Hierarchical Interconnection Network(THIN) is a new kind of interconnection structure for chip design paradigm.The topology of THIN is very simple and it has obviously hierarchica…
The database of operation history for SPRR-300 is quickly replenished to make it integrated.The ORIGEN2,which is modified to suit short operation intervals,and its auxiliary programs make the calculation stream-lined.Using the programs,source terms of the final loaded assemblies in SPRR-300 at different moments are ca…
Dendritic poly(amidoamine)(PAMAM)-salicylidene salen palladium complex of the first generation (PAMAMSAPd) was synthesized and characterized by elemental analysis,FT-IR,UV-vis,Fluorescence spectra and NMR. It was evaluated as catalyst precursor in the Heck cross-coupling of iodobenzene (or its derivatives) and conjuga…
The effects of some intercritical annealing parameters including heating rate,soaking temperature,soaking time,and quench media on the microstructure and mechanical properties of cold-rolled dual phase steel were studied.The microstructure of specimens quenched after each annealing stage was analyzed using optical mic…
A medium-temperature zinc base phosphating technology for aluminium alloy was investigated with hard aluminum alloy LY12 as a model material.The effects of NaNO2,NaF,Zn( NO3) 2 ·6H2O and Zn( H2PO4) 2 ·2H2O on the corrosion resistance of the phosphating film were investigated.The optimum condition of phosphating proces…
An amino-functionalized ionic liquid of N-(3-aminopropyl),N(3)-(vinyl)-imidazolium bromide(AIL) was synthesized and used to stabilize gold nanoparticles(GNPs).Further polymerization of the resultant GNP-containing AIL led to a composite catalyst(GNPs-P-AIL) in which GNPs were supported by ionic copolymer.The composite…
High molecular weight bisphenol-A polycarbonate was respectively synthesized by solid state polycondensation with amorphous and crystalline bisphenol-A polycarbonate pre-polymer,and the products were characterized by GPC,FT-IR SEM and DSC.The influences of such operating parameters as polycondensation time,polycondens…
Meso-tetramethoxyphenyl porphyrin samarium(Ⅲ) complexes were synthesized.The interaction between meso-tetramethoxyphenyl porphyrin samarium(Ⅲ) complexes and bovine serum albumin(BSA) was studied by fluorescence spectrophotometry.The product has a strong ability of quench the fluorescence of BSA.The quenching belonged…
Effects of rare earth on corrosion resisting property of 1Cr18Mn8Ni5N stainless steel were investigated through measuring AC impedance and polarization curves,and the surface morphology was observated through SEM of rusting samples.The results show that the pitting corrosion resistance of stainless steel is obviously…
In the process of preparing porous silicon nitride ceramic by impregnating a polyurethane sponge,the effect of heating rate,the amount of additives and sintering temperature on the microstructure of porous silicon nitride ceramic,phase and mechanical properties are discussed.Result of study indicates,with the content…
In this paper,the geometry model of Al alloy seamless tube was established by UG.On this basis,numerical simulation of Al alloy seamless tube was established,the results of thermo-mechanical result was achieved.The change law of axial pressure,temperature field and stress field of mandrel was obtained potential failur…
Nonwovens made of fiber of various thickness are prepared through the method of spunlace.The apparent structure,pore size distribution and porosity are analyzed,furthermore,filtration performance of the spulanced nonwovens is discussed.The results show that porosity of the spulanced nonwovens is increased and the filt…
Welding defects existing in dissimilar steel joints of nuclear pipeline were reproduced and studied with a series of simulated welds,during which the defects were identified while the causes analyzed.Results show that the wleding defects are of the hot crack type,of which the formation can be attributed to too high su…
Objective: To investigate the influence of different annealing methods on the mechanical properties of dental titanium castings.Methods: The titanium castings were treated by non-vacuum method and vacuum method,respectively.The ultimate tensile strength(σ b),0.2% offset yield point strength(σ 0.2),and elongation to fr…
The mechanical property and corrosion behavior of Al-Cu series cast aluminum alloy with different Cr content was studied.The results show that,under the H+,Cl-and SO42-,Cr can make the corrosion potential of aluminum alloy shift to the positive,the passive current density shift downward,and it can improve the corrosio…
The whole forging process for motorcycle connecting rod was numerically simulated by finite element simulation software DEFORM-3D,the distribution of stress and strain,load calculation,material flow rate,optimization of the die size and round corner was discussed.The results give a reference for designing die and equi…
Fluorescence of the organic light-emitting compounds are often quenched when the luminophors are fabricated into solid thin films,which have greatly limited their scope of practical applications.So,it is important to design and synthesize the novel organic luminophors with excellent light emission property in solid st…
A PdCl2-CuCl2/γ-Al2O3 catalyst has been synthesized by the method of incipient impregnation. The catalyst loading,Pd/Cu ratio,CO concentration,amount of moisture and reaction temperature were varied in order to identify the optimum reaction conditions. The results showed that:the presence of water vapor was a prerequi…
To improve the toughness of polypropylene(PP)/sisal fibers(SF)composites through the addition of polyolefin elastomer(POE)and maleic anhydride grafted polyolefin elastomer(POE-g-MAH),the effects of the elastomer and fiber content on the mechanical properties and the effecting reason of the SF/PP/elastomer composites w…