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to a ductile metal matrix produces a material whose mechanical properties are intermediate between the matrix alloy and the ceramic reinforcement. Recently, MMCs have received substantial attention... of the reinforcement within the matrix alloy, extensive interfacial reactions and formation of brittle phases at the particle/matrix interface as well as a high level of porosity, new semi-solid processing techniques......
, manganese and magnesium are invariably present in the alloy composition [1]. What is known about Co is a very important element for improving the discharge capacity and prolonging the cycle lives... loss to 380.7 mA·h/g (x=1.60). Secondly, the appropriate substitution also increased the electrochemical kinetic performance of the alloy [2,3]. The typical commercial alloy, used as negative electrode......
, biosurfactants can increase the membrane permeability by interacting with the lipid and protein on the cell membrane [9]. For example, rhamnolipids might disrupt membranes through increased membrane.... The difference may be caused by the increased permeability of membrane after the pretreatment of RL [9-10], resulting in gathering a lot of negative charges on the cell wall surface. The medium pH influences......
membrane and then to the negative electrode via an external load. The basic requirements of the anode electrode material are corrosion-resistant, high conductivity, high porosity, large specific surface area... powder in order to improve the effect of reduction reaction. The proton exchange membrane isolates the anode compartment from the cathode chamber and allows hydrogen ions transfer from the anode......
membrane, resulting in subsequent leakage of intracellular contents and thus cell death. Being a biosafe material, it is also used as an antibacterial agent in the food packaging industry, against various... of the bacterial cell also affected the inhibitory action of the nanoparticles (NPs). For instance, due to the presence of a single membrane cell wall, Gram-positive bacteria were more susceptible......
processing [23,24]. Nanofiltration and membrane filtration are also used to treat alkali- containing wastewater [5,25]. By using membrane bioreactor, nanofiltration and reverse osmosis to treat woolen textile... pollution, which required further desalination before they can be discharged [23]. Most of the ions in the wastewater can be removed by membrane filtration techniques [25,26]. However, the filter......
氧化膜形貌和基体组织 Fig.3 Microstructures of oxide film and matrix of alloy 从模拟实验样品的颜色和微观物相组成来看,生产过程中钢板表面的红色锈层是在560 ℃左右形成的氧化产物.根据现场实际条件,对钢板表面的温度在生产线上变化情况进行计算机模拟. 2.4 钢板表面的实际温度 为了弄清钢板表面的实... Treatment, 2006, 31(1): 62-65. [7] 杨瑞鹏, 蔡 珣, 陈秋龙. 氢在钯纳米晶薄膜中的扩散[J]. 中国有色金属学报, 2001, 11(4): 558-561. YANG Rui-peng, CAI Xun, CHEN Qiu-long. Hydrogen diffusion in palladium nano-crystal film[J]. The Chinese......
中图分类号:TG166.3 文献标志码:A Coarsening kinetics of grain boundary precipitates in 7055 aluminium alloy DENG Yun-lai1, 2, WAN Li1... precipitates was proposed. Key words: 7055 aluminium alloy; regression aging; grain boundary precipitates; coarsening kinetics Al-Zn-Mg-Cu合金具有比强度高,加工性能好的优点,在航空航天,交通运输等领域有着广泛的应用[1-4].基于回归再时效(RRA)技术建立起来的T77......
Trans. Nonferrous Met. Soc. China 24(2014) 2326-2330 Precipitation hardening behavior of dilute binary Al-Yb alloy Chao-lan TANG1, De-jing ZHOU2 1. College of Electromechanical Engineering, Guangdong... until the particle size reached 11 nm. When the particle size increased to about 2 nm, the shearing mechanism started to change to Orowan mechanism. Key words: aluminum alloy; microalloying; ytterbium......
Trans. Nonferrous Met. Soc. China 24(2014) 3825-3833 Homogenization pretreatment and electroless Ni-P plating on AZ91D magnesium alloy Can SUN1, Xing-wu GUO1,2, Shao-hua WANG1, Jia-cheng GUO1, Wen-jiang DING1,2 1. National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai 200240, China; 2. State Key Laboratory of Metal Matrix Composites, Shanghai Jiao......