Materials Literature
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The swelling resistance testing of rubbers and plastics to dimethyl ether and the mechanical resistance testing of rubbers to dimethyl ether are conducted. The rubbers include ethylene propylene diene monomer (EPDM) rubber, nitrile rubber, plasticizing rubber, butyl rubber and hydrogenated nitrile rubber, and the plas…
Black silicon material was considered an important potential application in the field of remote sensing,optical communications,microelectronics and solar cells,because of wide spectral absorption characteristics.In order to understand the characteristics of the formation mechanism,first establish a geometric model of…
The thioglycolic acid-capped CdSe/CdS core/shell quantum dots can be conveniently prepared in aqueous phase using CdCl2.2.5H 2O,SeO 2,Na2S.9H2O as precursor.The size,crystalline structure and optical properties of the as-prepared quantum dots were characterized by high resolution transmission electron microscopy(HRTEM…
Dissolution and precipitation of alloying elements in GCr15 bearing steel were studied using EDAX9100 spectrum analyzer,and the improved cyclic spheroidizing annealing process was built on this basis.The traditional isothermal spheroidizing,cyclic spheroidizing and the improved cyclic spheroidizing were compared.The r…
This paper introduces the results of experimental research on thermal decomposition characteristics of ethanolamine(ETA) and describes the application of ETA to the secondary system of nuclear power plant(NPP).
This paper researched the influence of carbon,silicon and aluminium on non-oriented silicon steel magnetic aging.Experiment results indicate that the dominant influence of non-oriented silicon steel magnetic aging is carbon content,silicon and aluminium alloy element also have important effect on non-oriented silicon…
Microstructure of cast iron and casting defects was an important factor that influencing its performance,also was a basic measure of cast iron pressure vessel safety and reliability.But the nondestructive testing technology of cast iron pressure still lacked the mature methods and perfect testing standards in domestic…
For the research on elasto-plastic deformation characteristics of grating aluminum in the mechanical ruling depth range,a series of large depth nanoindentation tests are completed about the existing 79 g/mm echelle grating with a Berkovich indenter on a nanoindentation instrument.Some changing regularities of the grat…
It is very important to develop accurate methods for the determination of trace mercury due to its extremely hazardous and bioconcentration effect on human health and the environment.The conventional detection methods for Hg(Ⅱ),such as Atomic Spectrometry,Inductively Coupled Plasma-Mass Spectrometry,Electrochemical An…
Pt-ZSM-5/Pd-ZSM-5 catalysts were prepared by using noble metals Pt or Pd as the active components and HZSM-5 zeolite as the support.The catalytic properties of Pt-ZSM-5/Pd-ZSM-5 catalysts for n-butane isomerization were investigated on a continuous flow pressure microreactor-chromatograph system.The evaluation results…
In order to study the mass loss of projectile penetrating concrete target and work out the design formula that can meet engineering requirement,the relative parameters that influence projectile mass loss were analyzed.Through dimensional analysis,the reduced-scale model and similar criteria for high-velocity projectil…
Based on the preparation of mechanization gluing used to produce honeycomb core materials by glass cloth,the properties and existing problems of the preparation of the prepreg of microwave absorbing composites was analysised,and to bring up a new mechanization preparation of the prepreg,which originated from the doubl…
NFM is a very important plasma diagnostic system which can provide the flux information about the ex-vessel neutron yield in ITER.The neutron yield of ITER will be the strongest one in the world(1021n/s).It can bring some uncertain effects on the device.We had rebuilt the NFM model in order to check its situation and…
Objective To evaluate the physicochemical properties and biocompatibility of PLGA/SEP(soluble eggshell membrane protein) nanofiber membrane prepared by electrospinning.Methods Different ratios of electrospun PLGA/SEP nanofiber membrane(experimental group) and pure PLGA membrane(control group) were prepared.The ratios…
The annealing processes of QBe2.0 beryllium copper plates were studied,and the variations rules of microstructure and material properties were analyzed.The results show that the best annealing processes is heating at 600℃ for 6 h.
ZnO nanorods were introduced onto ITO conductive glass substrate with Zn(NO3)2/HMT solution system by hydrothermal method.And then,ZnO/TiO2 core-shell heterostructures were synthetized using sol-gel method as well as dip-coating process,after which the effects of the concentration of the TiO2 sol and the number of lay…
The conductivity and surface tension of the mixed liquid resulting from the interaction of cationic dye with polymer emulsion were measured using conductivity and surface tension measurements and compared with those of pure dye liquor or pure polymer emulsion.The results showed that the addition of cationic dye X-GRL…
Studies on the discriminatory power of dissolution test is important in the development of dissolution method.How to select a dissolution method with high discriminatory power is a major concern in pharmaceutical technology evaluation.This article is intended to introduce the importance of discriminatory power and the…
The effects of Fe content and wrought state on the bio-corrosion properties of pure magnesium in the Hanks' solution were investigated by hydrogen evolution and mass loss.The corrosion law of pure magnesium in Hank's solution show that the lower the Fe content and the smaller the grain size of pure magnesium,the bette…
Ammonium polyphosphate is a halogen-free flame retardants.Owing to its excellent performance,it is widely used for fire-resistant coating,rubber,polyurethane and dry powder extinguishing agent.In the paper,we tested thermal decomposition property of two different ammonium polyphosphates and added them to the water bas…