Materials Literature
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The effect of compressive stress on the oxidation behavior of pure nickel was investigated by thermogravimetric analysis(TGA).Compressive samples were subjected to stresses of 10 and 20 MPa and the oxidation behavior was studied at 800 ℃ in air.The surface and cross section morphologies of the oxidized coating were an…
Under rolling/sliding condition(with slip ratio of about 10%),the wear property of high-vanadium high-speed steel(HVHSS) was studied via wear testing machine developed by authors,and the failure behavior was analyzed via electron microscope.Results show the relative wear resistance of HVHSS is twice higher than that o…
Low carbon stainless steel ER308L was used for tungsten inert gas ( TIG) arc welding of 304 stainless steel ( SUS304).The electrochemical corrosion behavior and electrochemical eigen-values in different solutions of the welded metal of hot rolled SUS304 austenite stainless steel plates weretested, and the susceptibili…
Full color display is the goal of organic light-emitting diodes (OLED),but the fabrication of stable red devices is the great barrier in the mass production of OLED.In order to use organic light-emitting diodes in displays,it is very important to obtain red light emitting with high efficiency.In this paper,a red phosp…
Ferromagnetic glass-ceramics has been an ideal thermoseed material for hyperthermia treatment of cancer,because of the heat hysteresis properties and good biological activity.In this paper,the preparation methods and characteristics of the ferromagnetic glass-ceramics are reviewed,focusing on analysis of its recent re…
The transparent and conductive ZAO films with strong preferred orientation growth along the(002) plane are prepared on glass substrates by the sol-gel process.The effects of Al3+ concentration,number of layers and annealing temperature on the microstructure,surface morphology,optical and electrical properties of the f…
Natural rubber(NR),butadiene rubber(BR),styrene butadiene rubber(SBR),ethylene propylene diene rubber(EPDM),acrylate rubber(ACM) and silicon rubber were modified with two new kinds of silica substituted for common silica in this paper.The content and types of silica were studied by measuring Shore A hardness,elongatio…
Boronising of 45 steel with and without addition of rare earth was carried out to obtain boride and RE-boride layer.Both boride layer consists of FeB and Fe_2B phases,the fraction of Fe_2B phase increases with increasing Nd_2O_3 amount in boriding agent,the thickness of boride layer exhibits a maximum value of 135μm a…
The PET fiber was modified with methylacrylic acid liquid phase grafting by low temperature glow discharge plasma method.The effects of air temperature plasma treatment conditions and grafting process on the grafting yields were discussed.The results indicated that the optimized technic conditions of low temperature a…
The title complex [Mg(H2O)6]·(L)·(H2O) [L=2-formyl-benzenesulfonate-hydrazine] was synthesized by the reaction of magnesium chloride hexahydrate with 2-formyl-benzenesulfonic acid sodium-hydrazine in the CH3CH2OH/H2O.It was characterized by elemental analysis,IR and X-ray single crystal structure analysis.The crystal…
To develop a small-diameter tissue engineering blood vessel,the biocompatible and biodegradable PLA,silk fibroin and gelatin were used as materials,polylactide/silk fibroin-gelatin composite tubular scaffold with 4.5 mm diameter was fabricated via electrospinning,which was performed on a high speed rotating mandrel.Th…
Using the scanning electron microscopy to observe the micro-structure of the elytra of Gill Beetles,it is found that chitin fiber-reinforced skin of the protein structure is similar to man-made fiber reinforced composite materials.Further observing the micro-structure of the elytra of Gill Beetles and the authors find…
In order to compare the properties of natural ester impregnated Kraft paper and thermally upgraded paper,sealed aging vessels containing copper,insulation paper(Kraft paper and thermally upgraded paper),and natural ester were aged at 90℃,110℃,and 130℃ 399 days.The results show that both degree of polymerization(DP) an…
In order to meet technical requirement in strength and toughness property for the valve body parts of brake system in locomotive and vehicle,smelting process for as-cast QT450-10 nodular graphite iron has been controlled in the aspects such as choice of chemical constitution,spheroidisation treatment,comprehensive mod…
The structure characteristic of a sort of recuperator used in micro-turbine was analyzed; the influences of structure parameters of recuperator to the heat transfer characteristic and resistance characteristic were analyzed by computing regenerator effectiveness and pressure loss of recuperator. It’s inconsistency to…
Single-crystalline cerium orthovanadate(CeVO4)nanorods are synthesized successfully by Na2EDTA-assisted hydrothermal method.The products are characterized using X-ray diffraction(XRD),transmission electron microscopy(TEM),high-resolution transmission electron microscopy(HRTEM)and superconducting quantum interference d…
The effect of silicon on microstructure and mechanical property of China low activation martensitic(CLAM) steel was investigated.The tensile strength increases and the DBTT is higher but the toughness decreases by adding 0.2% Si.The microstructure of CLAM steel appears as tempered martensite by light optical microscop…
Nanosized Mn-Zn ferrites were successfully synthesized by organic chelating Sol-gel rout by using metal (Fe,Zn,Mn) nitrates and ethylene diamine tetraacetic acid disodium salt(EDTA) as raw materials.The crystalline phase,crystalline morphology and magnetic properties of the products synthesized from different conditio…
The corrosion properties of the galvanized steel sheets for autos with various broken areas of their zinc coating were evaluated and compared by immersion tests in a mud of Yingtan soil containing 3.5% NaCl and a solution with the same concentration of NaCl.The results show that corrosion weight-loss rate of the sheet…
The effects of pouring temperature on the solidification microstructures of single crystal superalloy DD6 were investigated.The results show that with the decrease of pouring temperature,the primary dendrite arm spacing increases,the size of γ′ phase in the dendrite core and in the interdendrite increases slightly;And…