Materials Literature
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The curing characteristics of epoxy resin(E-51)/multithiol compound(T-35)systems using tirethylamine(Et3N),N,N-dimethyl benzyl amine(DMBA),2,4,6-tris(dimethylaminemethyl) phenol(DMP-30) and 1,8-diazabicycloundec-7-ene(DBU)as accelerators respectively were invertigated by the test of gel time,real time IR and GPC analy…
Functional nanomaterials have broad application prospects in many fields such as catalysis,energy and sensing,due to their unique structures and excellent properties.Through control of their synthesis and assembly processes,we can regulate their properties effectively.In this paper,we give a brief summary of our recen…
synthesis tests of high quality type-Ib diamond single crystals in carat grade were conducted and researched under 5.6 GPa and 1 250 ～1 350 ℃.Effects of catalyst stickiness on the growth of diamond crystals were studied emphatically.The results revealed that,catalyst of low stickiness which performed strong convection…
The N,N-Dimethylformamide self-assembled films,with different concentration,were prepared on copper electrode surface.Electrochemical impedance spectroscopy(EIS)and Potentiostatic steady-state polarization curve were performed to characterize their inhibition effects for copper in neutral NaCl solution.The results sho…
TE and TM waveguid modes in a three-layer symmetrical slab waveguide with a single negative media core are studied.The results prove that only slow waves can propagate in this peculiar waveguide system.And TE modes can only propagate in waveguide with MNG core,meanwhile TM modes can only propagate in waveguide with EN…
The effects of substrate pretreatments,such as modifying the substrate with ZnO nanoparticles,drying the substrate with highly pure nitrogen and soaking the substrate with hydrochloric acid,on the growth of ZnO micro/nanotube arrays were systematically investigated by using a hydrothermal method.The relationship betwe…
The gasification of Yining long flame coal char,with CO2 serving as the gasifying agent,had been studied by TG under the catalysts,such as K2CO3,Na2CO3,KOH and CaO.The results showed that:(1) with the adding of 10% K2CO3,the gasification time was shortened by 9.2min,and the corresponding gasification temperature was d…
PA6/SEBS-g-MAH/OMMT blends were prepared using melting extrusion technique,with maleated styrene-ethylene/butadiene-styrene triblock copolymers and OMMT served as the toughening agent and reinforcing filler,respectively,and GMA as a compatibilizer for the blends.The influences of SEBS-g-MAH,OMMT and GMA on the mechani…
The forty-seventh session of the American Society of Clinical Oncology annual meeting(ASCO)was held in Chicago,from June 3 to 7.The summary about the hotspot of medical treatment of NSCLC is as follows.
The temperature field,thermal stress and thermal deformation of gear in quenching process were analyzed using ANSYS9.0.The distribution regularities of temperature,the corresponding thermal stress and thermal deformation in gear's quenching process were obtained by calculating and analysis,which were reference value t…
The effects of different vanadium content on microstructure and properties of carbide austempered ductile iron(CADI)were researched.The results show that the amount of carbide in the as-cast specimens increases with the increase of vanadium content.After austenited at 900 ℃ for 1.5 h and austempered at 250 ℃ for 1.5 h…
We determined the structures of amorphous diboron trioxide and sodium pentaborate hydrate by X-ray diffractometry.Radial distribution functions(RDF) of those samples were obtained from precisely diffraction data processing.Their short-range ordered structures were determined by model design and quan-titative calculati…
Nanoparticles of AgCl were synthesized in water-in-oil microemulsion using poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymers(F127) as a surfactant.And then AgCl/F127-PMMA organic/inorganic hybrid membranes were prepared for separation of benzene/cyclohexane mixtures by pervaporation.The…
Microstructure and properties of V and V /N micro-alloyed high carbon steel 82B after solution treatment then continuous cooling and thermal deforming and continuous cooling were studied.Results show that strength increases and plasticity decreases with V content increasing in 82B steel after solution treatment and co…
A new stress-magnetization equation for ferromagnetic material is derived by using Lagranian multiplier method based on micro magnetic theory and minimal energy principle in this paper.The finite element analysis is carried out on a bar-shaped single crystal ferromagnet specimen.In the finite element simulation,the in…
Hydrostatic extrusion experiment of TC4 titanium alloy was done, and the microstructure and properties of material after deformation were studied. The results show that the strength of titanium bar significantly improves by 10% while the section shrinkage decreases little. After being extruded hydrostaticly, the micro…
Accumulative roll-bonding(ARB) is a severe plastic deformation process,which is applicable to continuously produce bulky ultra-fine grain sized materials with high mechanical properties,therefore it is mostly appropriate for industrial applications.The interfacial bonding strength is one of the important factors which…
The article studies the shape of half-circle skirts made of 55 kinds of typical skirt fabric.3D virtual try-on platform is applied to simulate the shape effect of skirts when they are worn.In order to study the relationship between the fabric mechanical properties and the shape style of half-circle skirts,the samples…
Objective: To construct tissue engineering of heart valves in vitro. Methods: The bone marrow mesenchymal stem cells (MSCs) were harvested from sternum, cultured and expended in the DMEM culture medium. Specimens of porcine aortic roots went through acellular procedures by treated with Triton-X100-SD with specific con…
Effects of different heat treatment processes on microstructure and properties of Nb-containing cryogenic steels were investigated.The results show that microstructure of the steel as cast is fine lamellar pearlite and blocky ferrite and that after heat treatments is tempered sorbite.The mechanical properties are best…