Materials Literature
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Two sex-limited marking varieties of Chinese strain named Jin and Xiu and one sex-limited marking variety of Japanese strain named Xiang were bred by means of hybridization,back-crossing and pedigree selection after directional selection among multiple generations under different climatic circumstances of spring,summe…
Perovskite structure manganese oxide thermal control coatings were synthesized by solid-state reaction method.The relationship between the total hemispherical emittance(eH)and the temperature of the thermal control coatings was measured on a calorimetric emissometer which was based on the steady state calorimetric met…
Radiation crosslinked product of bromobutyl rubber(BIIR)was achieved by electron beam(EB)irradiation curing.Gelling dose of BIIR was estimated to be 12kGy.Various polyvinyl monomers were tested to enhance EB crosslinking of BIIR in order to obtain a high crosslinking degree at a low dose to avoid main chain degradatio…
The structure and property for forgings,syphons and heads pressure-bearing components and splicing welds and cladding plates during high temperature forming and heat treatment were discussed.It is introduced the methods of recovering and improving structure and property in accordance with the actual produce and provid…
A nickel layer was electrodeposited on the surface of magnesium alloy and its pretreatment process was studied carefully.The phase structure and composition of each treated layer were analyzed by X-ray diffraction(XRD),the surface morphology observed by scanning electron microscopy(SEM),and the corrosion resistance of…
In this paper,methods in synthesis of degradable surfactants containing 1,3-dioxygen heterocycle were reviewed to provide reference for the design of synthetic routes of these surfactants.
The insect elytra is a highly optimized natural composites which has excellent mechanics properties.This paper deals with the current research on the microstructures and mechanical performance,biomimetic composites is also involved.
Fe2P-type MnFe(P,Si) compound is a novel peculiar first-order phase transition material.In this work,a series of Mn2-xFexP0.48Si0.56(x=0.55,0.60,0.65,0.70) compounds were prepared by high-energy ball milling and solid state reaction method,and the crystal structure,magnetocaloric effect and transport properties were i…
The catalysts of zirconia supported on silica gel and siliceous MCM-41 mesoporous materials,respectively,were prepared by the impregnation method.Their catalytic activities in the Meerwein-Ponndorf-Verley(MPV) reduction of acetophenone with α-propanol as hydrogen donor were investigated,and compared to that of using h…
Atmospheric exposure coupon tests were conducted to investigate the corrosion resistance of 08MnNiVR steel,used for largesize petroleum storage tank in atmosphere environment.The corrosion behavior of the steel in petroleum sedimentary water medium was evaluated based on total immersion corrosion tests and stressinduc…
Influence of Nd addition on the morphology modification in Mg-6Zn-3Cu alloys was investigated by alloy preparation,microstructure analysis and mechanical property test.The results indicate that appropriate addition of Nd changes the organizational phase of the distribution and morphology.The mechanical properties of M…
The radio frequency(RF)coil is a key component in the nuclear quadrupole resonance(NQR)explosive detection system to pick up the signals.In this study,we aimed to optimize the design of small-sized solenoid coils for NQR explosive detection,including the diameter,length and number of turns of the coil.Experimental tes…
Hydrogen and inclusion and their interaction in aluminum melt were introduced.The purification flux for aluminum melt and its present development were described.The influence of purifying on the performance of electrical round aluminum poles was analyzed.The research orientation of purification flux for aluminum melt…
Effects of using TCHC,T1681,T1682and DCP to cure natural rubber/chlorinated polyethylene(NR/CM)blends were investigated.The proper scorch time and optimum cure time was found in the 50/50NR/CM blend.Mechanical properties were changed in a reasonable trend with the amount of CM increased in the blends.Reversion of NR r…
YAG:Ce ceramics were prepared by vacuum sintering with YAG:Ce powders as basic material and YAG glass as sintering aid.The effects of sintering temperature,sintering holding time and content of sintering aids on YAG:Ce ceramics sintering were studied by orthogonal experiment analysis.The ceramics were characterized by…
CNTs/AT40 composite coating was prepared by micro-plasma spraying,the microstructure,porosity and high temperature properties of the coating were studied.The results show that the microstructure of the coating is dense,the spray particles are melted enough and compressed,CNTs are distributed uniform and clear visibili…
With the improvement of demands of environmental protection in the world, the development of new environmental protection free-cutting copper alloy was one of the hotspots in current study. According to the free-cutting mechanism of lead brass and the design principles of environmental protection free-cutting copper a…
The nesquehonite whisker is synthetized by low-temperature aqueous solution polymerization.Effect of different surfactants on crystal whisker morphology have been studied. The study finds that the inorganic surfactant is better than organic,especially when using the potassium dihydrogen phosphate as the surfactant,the…
A hollow molecular imprinted polymer(H-MIP)was synthesized on silica as a sacrificed material by using 4-methyl dibenzothiophene(4-MDBT)as template,4-vinyl pyridine(4-VP)as function monomer.The sorbents were characterized by the Fourier transform infrared spectroscopy,nitrogen adsorption and scanning electron microsco…
In this research,cholesterol,hydrogenated phosphatidylcholine and phosphatidylethanolamine pegol were used to prepare gemcitabine hydrochloride liposome injection.α-Tocopherol used as antioxidant,air expelled by nitrogen and the preparing temperature maintained at 50℃ are important conditions to avoid the formation of…