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Study on the mechanical activation of malachite and the leaching of complex copper ore in the Luanshya mining area, ZambiaGai-rong Wang1,2,Hong-ying Yang1,2,Lin-lin Tong1,2,Ali Auwalu1,21. Key...">Mechanical activation(MA) of malachite was carried out by dry planetary grinding(DPG) and wet Isa grinding(WIG) methods. When the rotational speed was increased to 400 r/min in DPG, the specific......
Microstructural evolution during semisolid state strain induced melt activation process of aluminum 7075 alloy A. BOLOURI1, M. SHAHMIRI2, E. N. H. CHESHMEH2 1. Department of Mechanical...; accepted 25 June 2010 Abstract: The effects of compression ratio on the microstructure evolution of semisolid 7075 Al alloy produced by the strain induced melt activation (SIMA) process were investigated......
for hot deformation of this alloy. Key words: rare earth magnesium alloy; hot deformation; deformation activation energy; mechanical properties activation energy and corresponding stress exponent under hot-compression evaluated quantitatively. The results may lay the foundation for selecting hot......
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Equivalent conductivity and its activation energy of NaF-AlF3 melts HU Xian-wei(胡宪伟), WANG Zhao-wen(王兆文), GAO Bing-liang(高炳亮), SHI Zhong-ning(石忠宁), KAN Hong-min(阚洪敏), LUO Xu-dong(罗旭东... and composition, and relationship between equivalent conductivity activation energy and composition of the melts were then studied on the basis of two-step decomposition mechanism of AlF63-. According......
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fiber to Ti matrix. The interfacial reaction layer growth is controlled by diffusion and follows a role of parabolic rate, and the activation energy (Qk) and (k0) of SiC/TA1 are 252.163 kJ/mol and 7.34×10-3 m/s1/2, respectively. Key words: SiC/TA1composite; reaction diffusion; interfacial phases; activation energy  ......