Materials Literature
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Vacuum sealer as a product packaging tool of food products to be able to vacuum air inside the plastic which is filled with food products and it causes the pressure lower. In this condition, the optimal heating temperature is reached in a shorter time, so that damage on plastic sealer of vacuumed food products could b…
The transverse angle of the electron beam trajectory in the low energy RHIC Electron Cooling (LEReC) accelerator cooling section (CS) must be much smaller than 100 urad. This requirement sets 2.3 mG limit on the ambient transverse magnetic field. The maximum ambient field in the RHIC tunnel along the cooling section w…
ACTA CHIMICA SINICA Pt-Ni-P/Ti 蜂窝状电极的制备及其催化甲醇氧化性能研究 陶熊新 李莉 齐学强 魏子栋* (重庆大学化学化工学院 重庆 400044) 摘要 Ti 基体上, 通过电沉积-置换的方法制备了具有蜂窝状结构的 Pt-Ni-P/Ti 催化电极.采用扫描电镜(SEM)、X 射 线衍射(XRD)对催化剂进行了表征.通过阳极线性伏安扫描法(LSV)、连续循环伏安法(CV)、预吸附单层 CO 溶出法研 究了其甲醇氧化催化活性和抗 CO 中毒能力.SEM 测试结果显示, 非晶态 Ni-P 置换制备的 Pt
The atmospheric pressure plasma jet with low frequency and argon as working gas is presented in this paper to demonstrate its application for glass substrate clean and modification. The glass substrate clean by atmospheric pressure plasma jet is an efficient method to replace other substrate clean method. A comparativ…
The Cu-MoS 2 /Cu functional gradient materials were prepared by powder metallurgy method. The effects of MoS 2 content on the microstructure, phase composition and wear performance were analyzed comprehensively. Solid-solid phase reaction occurred between MoS 2 and Cu in the sintering process. The products of such rea…
The CdSe quantum dots obtained in the presence of chloride ions possess two excitonic bands in luminescence spectra, and one of them can be eliminated by treating the surface of quantum dots in a specific way.
We conduct a comparative numerical study of the formation of closely located light spots in the focal plane of diffraction gratings and binary optical elements matched with Hermite-Gaussian modes and specular Airy beams. It is shown that while gratings allow a set of uniform focal spots to be generated with high accur…
There has been much recent interest in the use of microfibrillated and nanofibrillated cellulose as additives to improve the mechanical properties of paper. Most of the original methods used to make these materials are to costly for this purpose, but now purely mechanical processed are becoming available which have be…
The microstructural evolution and changes in mechanical properties of 6000 series aluminum alloys during multi-directional forging (MDFing) and artificial aging were systematically investigated. The strength gradually increased with increasing cumulative strain. The MDFed sample up to a cumulative strain of ΣΔε=6 show…
Zinc phosphate (ZP) glasses doped with different concentrations of europium (Eu 3+ ) doped were prepared, and their luminescence spectra was investigated. Thermal properties were studied by differential thermal analysis (DTA) measurements. The phase composition of the product was verified by X-ray diffraction analysis…
The aim of the paper was to investigate the impact response of thermoplastic and thermoset biocomposites reinforced with flax fibres. The different modes of damage and the critical energy for complete penetration were identified for the composite.
Entropy of association of point defects in doped ceria from first principles.
For industrial applications efficient and short processes are essential, justifying the increased complexity of deep rolling treatments at elevated temperature. For this purpose, the direct integration of deep rolling manufacturing steps in heat treatment processes is a promising strategy. Combining inductive heat tre…
Photoluminescence (PL) and radiation-induced luminescence properties of Sn-doped zinc phosphate (SZP) glasses prepared with different cooling rates are investigated and associated with their glass structures. Although the shape of the PL spectrum is independent of the cooling rate, the emission intensity effectively c…
This study investigates the static and dynamic mechanical performance of conformal negative stiffness honeycomb structures. Negative stiffness honeycombs are capable of elastically absorbing a static or dynamic mechanical load at a predefined force threshold and returning to their initial configuration after the load…
Stimulated by the extensive application and research value, the study of anhydrous magnesium carbonate (MgCO3) has been a subject of great concern recently, so that a basic problem in designing a method of effectively synthesizing MgCO3 is very worth considering. In previous studies, different methods were reported to…
Zr1-xAlxV2-xMoxO7 (0 x 0.9) is developed by the solid state method, and the near-zero thermal expansion is realized by adjusting the quantity of substitution of Al3+/Mo6+ for Zr4+/V5+ in ZrV2O7. For smaller x values (x 0.3), the samples remain the same cubic structure as that of ZrV2O7. The Coulomb interaction between…
In this study, samples were taken from the polymeric insulator parts of XLPE insulated medium voltage cables already used for energy transmission and distribution.These samples have been aged in a controlled manner in the laboratory environment. The applied voltage and frequency was adjusted 24 kVpp and 3 kHz respecti…
The tunnel-structured Na0.44MnO2 is considered as a promising cathode material for sodium-ion batteries because of its unique three-dimensional crystal structure. Multiangular rod-shaped Na0.44MnO2 have been first synthesized via a reverse microemulsion method and investigated as high-rate and long-life cathode materi…
In this paper, a stability analysis is given to study the unstable mechanism of the Richtmyer-Meshkov flow of explosion-driven copper interface. The Richtmyer-Meshkov flow refers as an interfacial instability growth under shockwave incident loading. Numerical investigations are performed to check the applicability of…