Materials Literature
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The effect of aluminum,α-Al2O3 powders additive on the properties of vitrified bond including bending strength,mineral composition and stomatal distribution was studied.The results showed that the highest bending strength is 29.97 MPa when the addition of aluminum powders are 4wt% sintering at 620 ℃,which is increased…
CIAPIN1 is a newly identified anti-apoptosis molecule which distributes wildly in normal fetal and adult human tissues,but that the positive expression levels varied in different malignant tumour which originate in different tissues.It is reported that CIAPIN1 could make the tumor cell with low expression of CIAPIN1 t…
Focusing on the banded microstructure formed during the production of 06Ni9 steels for cryo-LNG,this paper examines its formation,distribution of alloying elements,structure,hardness,and low-temperature property.The results show that the banded microstructure formed after hot-rolling and cooling of the steel binct in…
Cavitation is an important factor in life for the wet cylinder liners of diesel engines and part of a surface phenomenon of spalling damage.Local area is characterized by pitting occurs,pinhole,serious aggregation of honeycomb into a hole group.Wet cylinder liners of diesel engine cavitation is due to mechanical,chemi…
Key problems of electrochemical noise techniques used in corrosion detecting and monitoring of nuclear power materials were discussed and resolved,and then the electrochemical noise test system was established based on zero resistance ammeter(ZRA) mode.Several electrochemical sensors for nuclear power field detecting…
A large variety of multidentate ligands have been designed and synthesized for the preparation of lanthanide complexes with desired functions.Hexa-bis-Schiff base,as one of the most known ligands with N2O4 cavity has been modified to various derivatives in respective to the expected functions.Correspondingly,a large n…
Various segmented transparent polyurethanes were prepared from dicyclohexylmethane diisocyanate(H12MDI),polytetramethylene glycol(PTMEG) with an Mn of 1000,and aliphatic diols as chain extenders by a standard prepolymer synthesis process.The effect of the structure of chain extender on the mechanical properties,peel a…
Polyimide and polyimide/silica hybrid films were prepared by poly(amic acid)salt.The effects of triethylamine on mechanical properties and water-resistant property of polyimide films were studied.The influence of silica content on morphology and properties of polyimide/silica hybrid films based condition was focused o…
Using three-dimensional modelling software and simulation software MAGMAsoft,the casting process of casting aluminum connection brackets was simulated.Through several times simulation,the most suitable gating system and riser design,and cold iron loading position was chosen.At last,the hot spote is effectively improve…
Plasma beam surface quenching and cladding were used to strengthen the surface of the automobile mould material Cr-Mo casting iron,the microstructure and microhardness of strengthening layer were studied.The results show that the average depth of hardened layer is about 400 μm,and the average hardness tested on the su…
A new micro-suspension pretreatment technique for cotton fabrics used in pad-batch dyeing is investigated.The head and tail chromatism influence of micro suspension system is discused.Compared with traditional pad-batch dyeing,micro suspension dyeing process can make the dyed fabric obvious deep effect.By reducing the…
The electron beam melting of molybdenum rhenium alloy ingots has coarse grains,which result in the deterioration of thermal processing performance.The rolling forging process and cogging force state were introduced,it can conclude that the cogging forging vertical tensile stress produced by grain boundary is the main…
An advanced structure containing cavities is adopted in distribution layers.A series of large-scale similarity-simulation tests are carried out on defense effect of the four structures for mass ammunition,and numerical simulations are developed by LS-DYNA software.The results indicate that the stress peak is distincti…
The Lithium-zinc(LiZn) ferrites with composition of Li0.35+xZn0.3Mn0.06Fe2.29O4+δ+2%Bi2O3(x=0～0.180) were prepared at 1 000 ℃ by the conventional oxide ceramic process.The Effects of different Li-excess contents on the microstructure,magnetic and dielectric properties of LiZn ferrites were investigated in this work.Th…
PP/Talc composites compatibilized by MA-SEBS(maleic anhydride grafted styrene-(ethylene-co-butylene)-styrene copolymer) were prepared by melt extrusion,followed by injection molding.The effects of Talc and MA-SEBS on mechanical properties of PP/Talc/MA-SEBS composites were systematically investigated.The results indic…
High-cycle fatigue properties and fatigue crack growth behavior of high clean secondary hardening ultra-high strength steel(AF1410),which was made by vacuum induction melting followed by vacuum arc remelting(VIM-VAR),have been studied.The experimental results indicate that high clean AF1410 steel has excellent combina…
This paper investigated the effects of several impurities,including Mg2+,F-and acid-insoluble,on the crystal morphologies and particles of calcium sulfate in H3PO4-HNO3 aqueous medium.The morphologies and crystalline phases of calcium sulfate under different impurities contents were characterized primarily.The results…
Aim: To investigate the effect of different cooling-temperature and cooling-duration on survival rate of hippocampal neurons from the refractory epilepsy models.Methods: A final concentration of 6 μmol.L-1 of bicuculline(Bic) and 4-aminopyridine(4-AP) was applied to culturing organotypic hippocampal slice(OHS) to deve…
The friction and wear poperties of polytetrafluorethylene(PTFE) filled with different mass ratio bronze were investigated.The effect of filling tin bronze power on mechanical and mechanism of friction and wear in different lubricanting conditions were also researched.The result showed that the density and shore hardne…
Plasmonics has become a new research hot spot in recent years.The collective oscillation of electrons at the dielectric and metal interface is a kind of electromagnetic excitation known as a surface plasmon polariton(SPP).Because of their specific coupling and propagation properties,the design and application of SPP-b…