Materials Literature
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Nanocrystalline titania (TiO 2) thin film with anatase structure was deposited on a float glass with a thickness of 5 mm by spray technology and then heat treated at different temperatures.The morphology,structure and micromechanical properties of TiO2 film were investigated by atomic force microscope,X-ray diffractom…
The basic properties and morphologies of richel fiber,viloft fiber and Shengma fiber were introduced.And different identification methods were used to identify the fibers according to their characteristics,and the reasonable identification method was found out by the comparative analysis.
As a kind of non-siliceous mesoporous material,mesoporous metal oxides have potential application in industrial catalysis,photoelectronic,solar cell and so on.In this article,the synthesis method,category,the main difficulties existing in synthesis and the application area of mesoporous metal oxides are reviewed.It′s…
Effects of chitosan degraded-mixture on the effect on the activity of Phenylalnine ammonialyase(PAL),Peroxidase(POD),Polypheneol oxidase(PPO) and Superoxide dismutase(SOD) of tomato seedling are studied.The results showed that the peak of defensive enzymes activities emerges earlier,which is the cause of strengthening…
The ligand N,N′,N″-tri(2-hydroxy-1-naphthaldehyde)-aminotriethylamine was synthesized previously and was reacted with an ethanol solution of rare earth,especially La3+,Sm3+,Y3+,Tb3+,Ce3+ or Eu3+,in a medium of ethanol and methylene chloride to give the corresponding rare earth complexes.Their molecular structures were…
A compound of[Ba(H_2O)_6][Cr(nta)(OH)]_2 is synthesised in the solusion and is characterized by IR spectra and X-ray diffraction.The results show that the crystallizes is the triclinic,space group P-1 with unit cell parameters:a= 11.002(5),b=11.078(5).c=11.632(5),V=1172.0(8)~3,Z = 4.
The effect induced by hydrogen on the microstructure of Ti-6Al-4V alloy had been investigated by optical microscopy and superplastic tensile tests were performed at 800℃~860℃ with initial strain rate 10-3s-1.Experimental results indicate that the volume fraction of β phase in hydrogenated Ti-6Al-4V increases with the…
Diamond-like carbon(DLC) films with good abrasion resistance and high transmittance were deposited on polycarbonate(PC) by plasma-enhanced chemical vapor deposition(PECVD).The effects of technological parameters on properties were investigated.The results show that the abrasion resistance can be improved greatly after…
In order to reduce the pollution produced by polyester fiber wastes and promote resource recycling use,ethylene terephthalate(BHET) monomers were prepared with waste polyester,glycol,polyisocyanate and so on through degrading them by alcoholysis technology.Rigid polyurethane foam was made with BHET monomers.The influe…
The corrosion weight loss of 316L is studied by high temperature autoclaves.XRD,EDS and XPS are used to analyze the corrosion behavior of the 316L stainless steel in high-Cl~- -ethylene glycol solutioa The experimental results show that the passive film of 316L stainless steel generated in high-ethylene glycol solutio…
Continuous power ultrasound was applied to inoculating the AS41 melt,and the effects of inoculating conditions including ultrasonic power(intensity),treating time and treating temperature on the solidification microstructures were investigated.According to the metallographical and macroscopical observation together wi…
Apparel fabric of polyester silk-like has been prepared by 83.3 dtex/72f polyester bright trilobal filament in this paper.Through alkali decrement treatment and low-temperature plasma treatment of the fabric,the wearability of the fabric has been tested.The results showed that after low-temperature plasma treatment,th…
In this paper,it is raised six issues of concern sach as carbon saturation,hardness,microstructure examination etc,which appear in high-speed steel cutters after heat treatment,and pointed out that the heat treatment process should be personalized and enhanced process monitoring,as so to avoid mistakes.
SiC particles reinforced Mg-2.51Zn-0.629Zr matrix composites with different contents of SiC particles were prepared by powder metallurgy.The microstructure and phase composition of the matrix alloy and the composites were analyzed by optical microscopy,scanning electron microscopy and X-ray diffraction.The variation r…
The application of resorcinol-formaldehyde resin in belt compound of TBR tire was investigated.The results showed that,by using resorcinol-formaldehyde resin in the belt compound of TBR tire instead of resorcinol,the physical properties of vulcanizate changed little,H pull-out force and aging resistance were similar,a…
The hollow microspheres/nickel composite materials were prepared by one step γ-ray irradiation in order to improve the application properties. At normal temperature and atmosphere,the hollow microspheres were dispersed in solution of nickel salt,and then added oxidative free radical scavenger after controlling the pH…
More recent studies on catalytic-based simultaneous removal of SO2 and NOX technologies were reviewed,including simultaneous removal of SO2 and NOX technologies based on SCR and aqueous catalytic oxidation technology.By introducing the characteristics of the various processes,problems and future research directions fo…
Using sodium silicate as silica sources,trimethylchlorosilane(TMCS) modified SiO2 hydrogels were prepared by a simple sol-gel process.After immersing and aging,surface modification,solvent replacement and fractional drying,mesoporous SiO2 aerogels were obtained via an ambient pressure drying technique.The density,spec…
Tetramethyl biphenyl epoxy resin(TMBP) was synthesized from 3,3′,5,5′-tetramethyl-biphenyl-4,4′-diol and epichlorohydrin via a two-step method using 18-crown-6-ether as a phase-transfer catalyst.The effect of temperature,reaction time,and phase-transfer catalyst on product yield was investigated.It was found that a ma…
Platinum carbon(PtCx) nanostructure was prepared by ion beam deposition,and its electron transport property was studied.The microstructure and composition of PtCx nanostructure were analyzed by SEM and EDX,the nanostructure size analyzed by AFM,and its atomic structure analyzed by HRTEM.The AC measurement was performe…