Materials Literature
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By building the model of the penetrator with enhanced lateral efficiency(PELE) and target of steel plate,LS-DYNA was used to simulate penetration of PELE filled copper,2024-T3 aluminium and nylon against 4340 steel plate at the impact velocity of 1 500 m/s.The results show that the filling material has important influ…
PSU fibers with a diameter in a range from nano-scale to micrometer were prepared by electrospinning.The effect of solvent,mass concentration of solution,tip-to-collector distance,voltage,and solution flow on the structure and morphology of eletrospun PSU fibers were investigated by SEM.The results revealed that,with…
The early hydration activity of high-titanium slag was stimulated by the alkali activator such as NaOH,Ca(OH)2 and Na2CO3,and chemical activation technology and activation mechanism of high-titanium slag were analyzed so as to provide theoretical guide for comprehensive utilization of high-titanium slag.The results sh…
In recent years,permanent metal stents are employed in the majority of interventional therapies;nevertheless,such kind of stents carries the problems of thrombosis and restenosis.Therefore,thebiodegradable magnesium alloy stent has become the focus of attention.Theoretically,it has overcome theproblems caused by perma…
The biodegradable composite films were prepared from corn stalks cellulose microcrystal(CSCMC) as the filler and poly(lactic acid)(PLA) as the polymeric matrix.The crystallinity,the tensile properties and the thermal properties of the composite flim were tested.The results show that the tensile properties and the ther…
To research and probe into the effect of the forming conditions of bagasse fibre SMA Mixture on structural indicators,this paper details an in-depth analysis of the forming temperature of mixture and the effect of bagasse fiber content on structural parameters of SMA mixture by adopting the middle value of SMA-16 grad…
Three new exocyclic ring-fused boron-dipyrromethene(BDP)dyes with N,N-dimethylaniline,p-methoxyphenyl or phenyl subunit at meso-position were synthesized.Their absorption,steady-state fluorescence and electrochemical properties were investigated.The spectrofluorometric titrations were performed to examine their respon…
In terms of torque ripple,five-level converter of switched reluctant motor is proposed and analyzed.Conduction of new topology was analyzed,and conduction comparison between new topology and asymmetric half bridge was performed.Based on conduction theory and direct instantaneous torque control(DITC),hysteresis control…
Encapsulation is demonstrated to be an effective method for enzyme immobilization.Compared to traditional methods,the biomimetic approach at mild conditions has garnered much interest.For the removing phenol in waste-water,silica formed by polyethyleneimine-inducer was used to immobilize horseradish peroxidase(HRP)at…
The effects of Tg value,H-8905(viscosity adjusting resin),H-862(release agent) and H-859(wear resisting wax) on the performance of glazing oil were investigated.Depending on the result the glazing oil and buffing oil formulations were proposed which could meet the requirement of high glossiness and excellent wear resi…
This paper summarizes researches progress on TiO2 nanotubes in recent years.The preparation methods of the TiO2 nano-tubes and the underlying formation mechanisms are introduced,and key factors affecting the formation of anodic TiO2 nanotube ar-rays are discussed in detail.Different doping methods and their effects on…
MgCl2 was used as crystal controlling agent for the synthesis of regular needle-like calcium carbonate with diameter of 2.5?5μm and aspect ratio of 10?20.Complexometric titrating method was employed to determine the contents of Ca2+ and Mg2+ in filtrated solution after carbonization and the fresh MgCl2 was added to ba…
The first realization of transparent alumina ceramics among all advanced ceramics expands a new research field of advanced ceramics.The application of transparent alumina is also successful,such as arc tubes for high intensity discharge lamps.Fruitful results in theory research and processing optimization are made wit…
A high strength low alloy(HSLA)ship-hull steel was processed with solid solution at 900 ℃ and quenching in water and then aging at 400-700 ℃.Effect of aging temperature on microstructure and properties of the HSLA ship-hull steel was investigated by means of SEM,TEM,tensile test,impact test and hardness measurement.Th…
The short-term corrosion behavior of X80 pipeline steel was investigated in Huo'erguosi soil with saturated water using electrochemical measurement,scanning electron microscopy(SEM) and energy dispersive spectrum(EDS) analysis.The results showed that the corrosion rate of X80 steel presented the variational trend of r…
SrAl2O4:Eu2+,Dy3+,Pr3+ long afterglow phosphor powder was successfully prepared by combustion at a lower temperature of 650 ℃,using nitrate and carbamide as starting materials.The crystallization,crystallite size and luminescence properties of the phosphor were investigated.The results show that the crystalline struct…
Phosphotungstics acid with Dawson structure(P2W18) supported on SiO2 were prepared by the sol-gel method.The catalytic performance in synthesis of n-Butyl acetate with acetic acid and n-butanol was investigated and the mechanism was discussed.The optimized condition were as follows:the supported quantity is 25%,the ma…
In order to investigate the tensile deformation and fracture behaviors of a single crystal Ni-based superalloy in the temperature range from room temperature to 1 100 ℃,the fracture surface and dislocation configuration after tensile deformation were characterized by scanning electron microscope and transmission elect…
The content of silicon inclusions in steel was analyzed by original position statistic distribution analysis technique.The relationship between the signals of abnormal sparks and the content of silicon inclusions was investigated by combining with physical and chemical phase analysis,scanning electronic microscopy and…
MSWI fly ash concentrates toxic substances such as heavy metals,if treated improperly it would lead to secondary pollution.Therefore,MSWI fly ash is considered as hazardous waste,and need special treatment.The paper describes the research on immobilization of heavy metals in municipal solid wastes incineration(MSWI) f…