Carbon pillared inorganic porous material were prepared by bentonite with the addition of Al3+ cross-linking agent. Al3+ cross-linking agent polish bentonite as Hydraulic conductivity Coating material，s hydraulic conductivity properties was researched, The porous material were characterized by the FT-IR spectrum, XRD, and nitrogen absorption. The influence of cross-linking agent was investigated respectively. The research results show that surfactant combine with bentonite particles by both types of covalent bond and particles embedded, material，s average pore size is of nano and comparing surface very large, polished bentonite has great adsorption and is of good watering property as hydraulic conductivity coating.

Porous TiAl alloy substrate , whose maximum pore size is about 2μm, was fabricated with titanium and aluminum elemental powders by P/M technique with pressure sintering.The palladium composite membrane was fabricated by electroless plating. It was proved that the membrane obtained in the experiment was pure palladium by X-Ray diffraction result. Scanning electron microscopy(SEM) showed that the surface membrane was dense and its thickness was about 10μm. The advantages of porous TiAl alloy as substrate of palladium membrane were discussed through three aspects (lattice matching, Linear expansion coefficients proximity and controllability of pore structure ). The trace analysis results of chemical constitutions of electroless plating baths after the electroless plating showed that the influence of TiAl alloy substrate to the stability of electroless plating baths was slight. The interdiffusion in high temperature between TiAl alloy and palladium was analysed by a heat treatment at 600℃ for 96 hours. A gas permeation experiment was conducted under temperature of 400–500℃ and pressure of 0.02–0.18MPa. Hydrogen permeance and selectivity of hydrogen/nitrogen (H2/N2) were 6.8×10−7 molm−2 s−1 Pa−1 and greater than 628 at 500℃, respectively.

Single layer and double layer Pt bottom electrodes for functional ceramic thick films have been screen printed on alumina substrates. The effects of sintering temperature, heating rate, and thickness of the Pt electrode layer on the pattern, alumina surface coverage, and the roughness of the electrode layer have been studied. The mechanism of grain and pore growth and densification of the Pt layer is also demonstrated. The difference in activation energy and the diffusion can be due to the presence of carbon impurities, whick influences the diffusion of Pt at low temperatures. As the first layer sintered at 600℃, the double print Pt layers with sequential heat treatments at 1200℃ exhibt improved densification and surface coverage. The double print Pt layers with the minimum average roughness of 0.82μm and the smallest sheet resistivity of 0.044have been produced on alumina substrates.

the present studies are to investigate the microstructure features of proeutectoid ferrite during transformation from austenite to ferrite at different cooling rates (0.5℃/min,2℃/min and 5℃/min) without and with applying the magnetic field(12T) on Fe-0.76%C alloy. It’s found that the preutectoid ferrite grains elongated along the magnetic field direction, and the angle between the major axis of proeutectoid ferrite and magnetic field direction was decreased with the cooling rates increasing. The most possible reason is that the preutectoid ferrite became the magnetic dipolar under high magnetic field, but the magnetic dipolar is far away the another one, and the diffusion of atom was weaken at quick relativelycooling rates.

Iron thin film were deposited on silicon substrate using filter cathode vacuum arc. Composition and valence studies were carried out by X-ray photoelectron spectroscopy (XPS); Glancing angle X-ray diffraction (GAXRD) was employed to examine the phase structure. In vitro blood compatibility tests, including platelet adherent, prothrombin time(PT) and thrombin time(TT), were used to evaluate the antithrombogenic properties. Scanning electron microscopy (SEM) and optical microscopy were employed to evaluate the surface morphology of the blood platelets on the films. The results have shown that the number of adherent platelets, the aggregation and pseudopodium were reduced compared to that observed on the 316L stainless steel. The PT and TT for iron thin films are almost the same as for the original plasma, which indicates that the tendency for activating blood coagulation factors is very slight.

Ni-S-Co alloy was obtained through electrodeposition in a modified Watts bath by adding thiourea (TU) and CoCl2 into the bath. The amorphous structure was determined by XRD. The contents of S and Co were measured by EPMA. The electrochemical parameters such as the hydrogen evolution reaction overvoltage (η) being 70 mV at 150 mA•cm-2, the Tafel slope b, the exchange current density i0 and the activation energies ΔH* were obtained. Much higher electrochemical activity of amorphous Ni-S-Co cathode than other electrodes including amorphous Ni-S electrode is determined. The results that the HER mechanism is a fast Volmer reaction following a slow Heyrovsky reaction and the high electrocatalytic HER property is mainly due to the large amount of adsorbed H atoms is obtained by the steady-state behaviors of amorphous Ni-S-Co alloy in alkaline media at various pH and the cyclic voltammetric curves.

The monodisperse and uniform CdSe quantum dots were synthesized using an organometallic method in noncooradinating solution containing ligands of octadecylamine (ODA) and trioctylphosphine oxide (TOPO). The samples were characterized by TEM, UV-Vis absorption and photoluminescence spectra. The effect of the different ODA/TOPO mass ratio on the size distribution and PL quantum yield of quantum dots in system were discussed.

Reactable nano- silica/PA1010 hybrid composites were prepared by means of melt blending and the mechanical properties , the morphology of the impact, tensile fractured surface of the composites were studied and the mechanism of PA1010 being reinforced and toughened by nano- silica was introduced. The results showed when the content of the nano-silica increased, the tensile modulus of all composites was higher than that of PA1010 matrix, the tensile strength and the break elongation of the composites increased. When the content of the nano-silica was 1 % , the tensile strength of the composite was the highest ; 4% higher than that of PA1010 matrix, the content of the nano-silica was 0.7%, the break elongation，the tensile modulus of the composite were the highest, 17.6%,13.4% higher than that of PA1010 matrix.

The very high cycle fatigue fracture behavior of three heats commercial spring steels 60Si2CrVA were studied by using ultrasonic fatigue test and fatigue crack propagation rate test. The experimental results indicate that fatigue failures originated mainly from large oxide inclusions. There was significant difference of the very high cycle fatigue properties of the tested three heats, although their oxygen content is equal. Further investigation reveals that this difference was mainly caused by the difference of inclusion size. That is to say, both fatigue life and fatigue strength increase with decreasing inclusion size. It was also found that in the case of internal inclusion-induced fractures at cycles beyond about 1×106, a fish-eye area was usually seen on the fracture surface, and inclusion was usually observed inside the fish-eye and a granular bright facet (GBF) was found in the vicinity around the inclusion. Further investigation of heat A-60 reveals that the stress intensity factor range at crack initiation site of inclusion ΔKinc had the trend to decrease gradually with increasing the number of cycles to failure Nf. However, the stress intensity factor range of GBF ΔKGBF had the trend to be almost constant with Nf with an average value of about 4.6 MPa•m1/2, which is very close to the fatigue crack propagation threshold of about 4.3 MPa•m1/2.

In this paper, a series of monolithic catalysts, which nickel foams were used as the support, were prepared and their catalytic performance in the synthesis of dioctyl phthalate (DOP) were studied. The active components of the monolithic catalyst are SnO and Sn. The effect of current density and electroplating temperature on the electroplating rate and the catalytic activity of the catalysts were investigated. The influence of the calcination process on the catalytic activity of the catalysts was studied. The life and the deactivation reason of the catalyst were also discussed. The results show that these monolithic catalysts have good catalytic activity and selectivity in DOP synthesis. When Sn/Ni-3(300) is used as the catalyst, the conversion of phthalic anhydride (PA) reaches 96.75% in 1h and the DOP selectivity reaches above 97% when the reaction reaches equilibrium. Moreover, the catalysts can be easily separated from the reaction mixture and be reused without any treatment.

The cathode materials of solid oxide fuel cell (SOFC) La1-xSrxMnO3 powder have been synthesized by microwave method using inorganic precursors. The mechanism and conditions of reaction for the formation of La1-xSrxMnO3 have been studied. The influences of microwave synthesis conditions, such as, microwave power, reaction time and reactant size are examined. And the structure of the sample is determined by XRD, SEM and TGA-DTA. Furthermore, the conductivity of sample is investigated by four probe method.

The chitosan microspheres were prepared by inverse phase suspension method in this study. The chitosan was modified by reducing Schiff`s bases formed from the reaction of n-heptaldehyd and chitosan. The structure of microspheres were characterized by FTIR and SEM. The effects of adsorption conditions, such as time, pH, temperature ,the concentration of 2,4-dinitrophenol and the amount of sodium chlorind on the adsorption were investigated. The experimental result indicated that micropheres were able to adsorb 2,4-dinitrophenol very well. In an aqueous solution at pH 3.6，the adsorption reached to 400 mg•g-1 in 1 hour. The adsorption data of 2,4-dinitrophenol on the modified chitosan microspheres was fitted to the Freundlich isotherm.

The influence of multi heat-treatment on microstructure and mechanical properties of TC4 alloy is discussed in this article. The first heat-treatment of multi-treatment was executed in single  phase region following air cooling or water quenching. The secondary heat-treatment was operated at different temperatures in + phase region, also following different cooling rates. Finally, the aging treatment was executed. The results show that multi heat-treatment can modulate the morphology of microstructure, including length/thickness ratio of  lamella and the morphology of fine secondary  . Mechanical experiments results show that certain multi heat-treatment can enhance both tensile properties and fracture toughness, the bi-lamellar microstructure can improve the resistance to crack propagation.