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of Youngs equation and contact angel. The results show that surface energy of Thiobacillus ferrooxidans is much higher than that of pyrite mineral. By thermodynamics approach, the interaction free energy... by the potential energy graph of Lifshitz-van der Waals(LW) and Lewis acid-base(AB) and EL interfacial free energy as a function of separation distance(d), which were established on the base......
Variation of activation energy determined by a modified Arrhenius approach: Roles of dynamic recrystallization on the hot deformation of Ni-based superalloyPeiru Yang,Chenxi Liu,Qianying Guo... behaviors of Ni18 Cr9 Co9 Fe5 Nb3 Mo superalloy were explored in the formation temperature range free of γ’ phase with various strain rates applied.The hot deformation behaviors are initially modeled......
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; (4) For SiC/ TA1 composite the free energy change of the four reactions above are about -170, -1 356... 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......
F, LI Q, LIU X D, QIN W Q, QIU G Z, HU Y H, CHAI L Y. Investigation of energy gene expressions and community structures of free and attached acidophilic bacteria in chalcopyrite bioleaching [J... construction method (LM), agglomerate heap construction method (AM), and pellets-sintering heap construction method (PM). The bacterial communities of free, attached, weakly-attached, and strongly-attached......
, Changsha 410083, China) Abstract: The surface energy, atomic geometry and electronic structures of Al(100), (110) and (111) free surfaces were calculated using the method of supercell and the first-principles pseudopotential plane waves within generalized gradient approximation. According to the calculated surface energy, the structural stability of Al free surfaces from strong to weak......
by the arc melting and casting method. The alloy exhibits simple FCC and BCC solid solution phases rather than intermetallic compounds. The reason is that the Gibbs free energy of mixing of the equimolar......
length of a rolling campaign. Key words: hot rolling; work roll shifting; varying step; roll wear; roll contour; schedule free rolling 1 Introduction Schedule free rolling (SFR) has broken restrictions on the rolling schedule in hot rolling and strengthened the connection between continuous casting and hot rolling [1-2]. So, it can save energy, increase productivity and reduce product costs......
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J. Cent. South Univ. Technol. (2009) 16: 0677-0682 DOI: 10.1007/s11771-009-0112-5 Energy consumption in rock fragmentation at intermediate strain rate HONG Liang(洪 亮)1, 2, ZHOU Zi-long(周子龙)1...; Abstract: In order to determine the relationship among energy consumption of rock and its fragmentation, dynamic strength and strain rate, granite, sandstone and limestone specimens......
