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of photoinduced electrons from holes to achieve stronger photocatalytic activity. The highest photocatalytic oxygen evolution and PL Spectra intensity are achieved. When the concentration of Ta is 1.0%, the O2 evolution speeds are 130.4 and 69.6 umol/(L?h) under UV irradiation and visible radiation, which are 14.6% and 12.1% higher than those before doping, respectively. Key words: rutile titania......
Flow stress and microstructure evolution of semi-continuous casting AZ70 Mg-alloy during hot compression deformation GUAN Shao-kang(关绍康), WU Li-hong(吴立鸿), WANG Li-guo(王利国) School of Materials... deformation activation energy Q of AZ70 alloy is 166.197 kJ/mol by calculation. Key words: AZ70 Mg-alloy; flow stress; Zener-Hollomon parameter; microstructure evolution ......
Solidification Behavior of Laser Melting Layer of Nd15Fe77 B8Sintered Magnets and Its Microstructures Evolution PAN Jing1,Liu Xincai1 (1.Department of Physics, Faculty of Sciences, Ningbo University, Ningbo 315211, China) Abstract:To research the solidification behavior and microstructures of a laser remelting/solidification layer on anisotropic Nd15Fe77B8 sintered magnets......
topologically close-packed phase (TCP) can be found after aging for 1 000 h. Key words: Ni-based superalloy; long-term aging; microstructures evolution; carbides; γ ′ phase 1 Introduction... used as the gas turbine blades was investigated. The complex and multi-phase microstructures of the alloy were studied. The microstructure evolution process of the alloy was also summarized. 2......
J. Cent. South Univ. (2017) 24: 2747-2756 DOI: https://doi.org/10.1007/s11771-017-3688-1 Texture evolution and inhomogeneous deformation of polycrystalline Cu based on crystal plasticity finite... and Springer-Verlag GmbH Germany,part of Springer Nature 2017 Abstract: Texture evolution and inhomogeneous deformation of polycrystalline Cu during uniaxial compression are investigated at the grain scale......
J. Cent. South Univ. (2012) 19: 2425-2433 DOI: 10.1007/s11771-012-1292-y Spectra analysis and O2 evolution for TiO2 photocatalyst compounded with indirect transition semiconductors TONG Hai-xia(童海霞... photocatalysts were analyzed. The photocatalytic activities of the TiO2 photocatalysts were investigated by splitting of water for O2 evolution. The results indicate that the band gaps of WO3......
Article ID: 1003-6326(2005)03-0577-06 Effect of original microstructures on microstructural evolution of A2017 semi-solid alloy billets during reheating WANG Shun-cheng(王顺成), CAO Fu-rong(曹富荣), WEN Jing-lin(温景林) (School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract: The microstructural evolution of the A2017 semi-solid alloy billets......
J. Cent. South Univ. Technol. (2009) 16: 0236-0241 DOI: 10.1007/s11771-009-0040-4 Effect of doping Bi on oxygen evolution potential and corrosion behavior of Pb-based anode in zinc electrowinning...; Abstract: A new anodic material of ternary Pb-0.8%Ag-(0-5.0%)Bi alloy for zinc electrowinning was obtained by doping Bi. The anodic oxygen evolution potential, corrosion rate......
had an important influence on the subsequent morphological evolution of these microstructures during the isothermal holding of the melt without stirring. It was found that when there were dendrites... of 0.1 ?C /min without stirring. For investigating the evolution of rosette type microstructures, the continued stirring was restarted at 100 r/min, and two cases were studied: 1) the stirring was stopped......
of constituents and eutectic structures in LFEC ingot (7.2%) is less than that of DC ingot (8.1%). Fig.4 Microstructures of 7050 aluminum alloy ingots: (a) LFEC; (b) DC 3. 2 Constituents evolution... Constituents evolution of LFEC 7050 aluminum alloy during processing ZUO Yu-bo(左玉波)1, WANG Shuang(王爽)2, ZHAO Zhi-hao(赵志浩)1, CUI Jian-zhong(崔建忠)1, ZHANG Hai-tao(张海涛)1, TU Gan-feng(涂赣峰)3 1. Key......
