The NiAl-based composite strengthened by TiC and Al2O3 was synthesized by thermal explosion and hot extrusion. Its microstructure and mechanical properties were investigated by XRD, OM, TEM and HRTEM. The results reveal that the NiAl-TiC- Al2O3 composite can be densified with less porosity. The NiAl...

In order to strengthen buildings against various damages and prolong their service life, BFRP is considered serving as reinforcing materials instead of steel. Through static load tests on six simple supporting beams reinforced with BFRP rebar and six reinforced with steel rebar, the paper compares their...

This paper is aimed to provide knowledge and understanding to promote the use of recycled materials via experimental study. In this paper, for the first time, effect of reprocessing on properties of recycled PP/talc composites has been investigated via series of experimental tests, while both virgin...

In order to enhance the properties of SnAgCu lead-free solders, the Al nanoparticles was selected as the additives. The effects of Al nanoparticles on wettability and mechanical properties of solder and solder joints were studied. The results showed that a small amount of Al can enhance the wettability...

With the development of lead-free solders, Sn-Zn solder was attracted increasing attention due to its low melting point, cost saving and excellent mechanical properties. However, there are many problems need to resolved, such as poor wettability and oxidation resistance. In order to overcome these shortcomings,...

The tensile behavior of Cu-Cr-Zr alloy was investigated at different temperatures. The material investigated was heat treated to the following condition: solutionizing 980°C-40 min then water quenching, aging 460°C-4 h. The test temperature was ranged from room temperature to 600°C at intervals of 100°C....

Polypyrrole-based electrodes were fabricated for energy storage applications using sisal fibers as a substrate material. It was found that the PPy nanoparticles deposited on the surface of sisal fiber cellulose (SFC) connected to form a continuous sheath by taking along the microcrystalline cellulose...

The TC4 titanium alloy were deformed at 800 , 2mm/s with various extrusion loops by a new sever plastic deformation method-Continuous Various Cross-section Recycled Extrusion, then the microstructure and microhardness of the specimen along the radial, the maximum deformation force in each extrusion procedure...

Trisilanolphenyl polyhedral oligomeric silsesquioxane (TSP-POSS) with three phenyl groups, was incorporated in concentrations of 6, 12 and 20wt% into 4,4’-methylenebis(phenyl isocyanate) (MDI) and glycerol propoxylate to prepare TSP-POSS/PU hybrid composites models, respectively. The domain micro-structures...

A modified cup-burner apparatus with a vibrating-spiral micro feeder was developed for testing the extinguishing performance of superfine powder fire extinguishing agent (SPEA). The suspension velocity of SPEA particles was calculated using the suspension-grade-model (SGD). The formation mechanism of...

A signal model based on the multipath higher order reflections of the flaw is reviewed to detect the sized flaw by ultrasound nondestructive testing, and the different paths are pre-defined and identified to form the corresponding equations. Three paths are studied, DRP, MP-C and MP-W. DRP and MP-C are...

With the aid of cotton template and precursor solution of mesoporous silica, hierarchical mesoporous SiO2 tubes with size–adjustable mesoporous in the tube–wall were synthesized through sol–gel method. The products are tubular silica that inherit the hierarchical structure of initial cotton and contain...

The ZnO nanorod films were synthesized using zinc acetate-sodium hydroxide aqueous solutions under different synthesis conditions. The effect of synthesis conditions on structural properties and morphology of ZnO films was investigated using field emission scanning electron microscopy and X-ray diffraction....

In order to solve critical process parameters characterize aluminum grating is proposed to optimize the impact of stress calculation values are based on a nano-indentation experiment - Method strain relationship parameters. By establishing numerical approximation model to fit the experimental data of...

The objective of this paper is to investigate the effects of gefitinib as a new stent coating material on proliferation of smooth muscle cells and the expression and phosphorylation of EGFR/Akt protein. Rat smooth muscle cells were cultured in medium with gefitinib (10-2 mol/L-10 mol/L) for 24h-72h....

An optimization strategy is presented for composite wing box structure using genetic algorithm with manufacturing constraints. Firstly, on the basis of region division and key region defined, both fiber orientation angle and covered length of each ply are treated as design variables to optimize laminate...

In this paper, hydroxyapatite and TiO2 biological coatings on TC4 titanium alloy substrate was prepared by electrophoretic deposition (EPD) method. The coatings were characterized by scanning electron microscopy (SEM). By subsequent different conditions of heat treatment process (vacuum and high purity...

In this paper, the sub-micro silica particles were prepared successfully by sol-gel method. The ammonia was introduced as a catalyst and silane coupling agent as surfactant. The impact of reaction temperature, ethyl orthosilicate (TEOS) concentration, the amount of silane coupling agent and the order...