Materials Literature
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The static recrystallization of 316LN austenitic stainless steel was studied by double-pass hot compression tests on a Gleeble-3500thermomechanical simulator.The specimens were compressed at the deformation temperatures of 950,1 050,1 150℃,strain rates of 0.01,0.1,1s-1,strains of 0.1,0.15,0.2,and intervals of 1-100s.T…
Thermal fatigue test has been carried out on widely used hot work steel 4Cr5MoSiV1and a low alloyed steel 3Cr3MoV in temperature range of 200to 700℃.Tempering resistance,as well as high temperature hardness/strength of steel specimens,works as a dominating material parameter on thermal fatigue resistance.During the he…
We report on the fabrication and characterization of phosphate fibers doped with Yb and Yb/Er ions. Optical amplification and laser operation are demonstrated in short-length devices.
The fibre reinforced concrete, which is defined as a composite material consisting of a material of cement mortar or concrete and discontinues discrete, uniformly distributed fibres has gained a wide popularity in the construction industry. The introduction of fibres into the concrete induces many desirable properties…
Mg-9Y-1MM-0.6Zr 合金的微观结构和性质被扫描电子显微镜学，光显微镜学，传播电子显微镜学，坚硬并且张力的测试学习。Homogenization 被证实，并且团结模型被建立。当演员组合金主要由 -Mg 和最容易溶解的结构组成。合适的 homogenization 参数是 535
By investigating the difference between the analytic solutions obtained from commonly used two-dimensional effective medium theory and the numerical solutions, we found that any analytical solution was quite accurate only at its right normalized cycle, determined by its own effective range. Thus, one should solve the…
Light trapping is one of the key issues to improve the light absorption and increase the efficiency of thin film solar cell. In this paper, a novel combined light trapping structure consisting of back one-dimensional (1D) Ag nano-grating and front conformal antireflective coating is proposed for amorphous silicon (α-S…
The evaluation of structural performance of existing concrete structures, built according to standards and materials quite different to those available today, requires procedures and methods able to cover lack of data about mechanical material properties and reinforcement detailing. This issue is more relevant when se…
Background: Peripheral nerve grafts (PNGs) in the spinal cord support axonal regeneration and functional recovery. Chondroitinase ABC (ChABC) has been used to break down chondroitin sulfate proteoglycans (CSPGs) that inhibit axonal regeneration. If ChABC is effectively delivered to the injury site, CSPGs can be broken…
Ag nanoparticles were fabricated on Si substrates by radio-frequency magnetron sputtering and thermal annealing treatments.It was found that Ag nanoparticles are ellipsoid at low annealing temperature,but the axis ratio decreases with the increase of annealing temperature,and a shape transformation from ellipsoid to s…
Phase field crystal method is used to investigate the deformation process and mechanism of twined structure of a trigonal phase under uniaxial tensile deformation, and the evolution and corresponding micro-mechanism of low-angle symmetric and asymmetric grain boundaries (GB) as well as high-angle symmetric and asymmet…
Silicon-rich silicon nitride (SiNx) thin films are deposited at 220 ℃ on n-type monocrystalline silicon substrates by plasma enhanced chemical vapor deposition using NH3 and SiH4 as the reaction gases. The samples are annealed at temperature in a range of 500-1100 ℃ in N2 atmosphere. We analyze the crystalline states…
The wall of elastic microtubules can be described as a membrane-type elastic structure. An oscillating system driven by ultrasound consists of liquid columns, a bubble and elastic wall of the tube. The nonlinear properties of this system are explored. Based on the successive approximation method, the nonlinear resonan…
Fe80Ni20 thin films with different thickness values are prepared by the molecular beam vapor deposition technique, respectively, in the cases with applying no magnetic field and with applying a 6 T magnetic field perpendicular to the surface of substrates. Film property studies show that as film thickness value increa…
With the wave equation, the boundary integral equation with considering compressibility is deduced. Then the motion characteristics and stability of cavitation bubble driven by traveling wave are obtained. The influences of wave frequency, amplitude and initial phase on the motion of cavitation bubble are analyzed. Th…
A TiN coating with (111) and (222) preferred orientations was deposited on a Si(111) substrate by using reactive magnetron sputtering a Ti target. The deformation mechanism and fracture behavior of the coating are determined by nanoindentation and nanocratch experiments. The morphologies of the indentations and nanosc…
Enhancing the critical-current density of YBCO films is essential to gain a deeper understanding of the vortex pinning mechanisms and enable commercial applications of high-temperature superconductivity. Combined BaCeO3 and Y2O3 nanoparticles have been achieved to be co-doped in YBa2Cu3O7-x (YBCO) films by metalorgani…
ZnO nanobelts are synthesized in high yield by a simple chemical vapor deposition method, at low temperature. And then Au nanoparticles are sputtered on the ZnO nanobelts. The effect on the photoluminescence of Au-ZnO composite nanobelts by surface plasmon is systematically investigated by the scanning electron micros…
The last decade has witnessed the explosive development of microfluidic systems. Droplet manipulation is one of the crucial technologies in design and optimization of microfluidic devices. In the present study, dissipative particle dynamics is applied to investigate the movement of a liquid droplet actuated by a const…
Electronic structure and optical properties of RDX are calculated by the first-principle density function theory pseudopotential method. The calculated results show that RDX is an insulator with a band gap of 3.43 eV, that the valence band of RDX is mainly composed of C-2s, C-2p, N-2s, N-2p and O-2s, O-2p, and that th…