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of the change of Gibbs free energy during the primary solidification for the icosahedral quasicrystal phase and itsapproximant crystal phase are proposed. The thermodynamic analyses show...; solidification structure; primary quasicrystal phase; gibbs free energy 1987年,T sai等[1]发现了稳定的Al65 Cu23 Fe12二十面体准晶相(下文称准晶I相).由此,为了获得单相多晶和大尺寸单晶体的Al-Cu-Fe准晶,准晶相成分附近区域......
firstly in the oxidation zone, the low-lead slag is produced secondly in the later zone, and the oxidation smelting temperature should be low. Key words: lead flash smelting; Gibbs free energy minimization...能[16-18]和相关活度因子[19-20]分别列于表1和2. 表1 组分的标准生成吉布斯自由能 Table 1 Standard formation Gibbs free energy of components 表2 组分的活度因子 Table 2 Activity factors of components 2 模型验证 模拟......
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of Nonferrous Metals Society of China, 2010, 20(1): 165-170. [23] GAUTAM R, SEIDER W D. Computation of phase and chemical equilibrium: Part I. Local and constrained minima in Gibbs free energy[J]. AIChE... and Technology, Ganzhou 341000,China) Abstract: Based on the principle of Gibbs free energy minimization, the multi-phase equilibrium mathematical model of the copper flash converting process......
; Mg-Al-Ca alloy; Al2Ca; Miedema model; Chou model; Gibbs free energy Gibbs free energy and activity coefficients of different components in ternary system than the other thermodynamic......
, the influences of Gibbs free energy (△G) and dissolution velocity (v) on the secondary porosity were analyzed, and the dissolution-precipitation state and development degree of secondary porosity were...) and southern of Central Depression with -38≤△G＜0 kJ/mol. Key words: Gibbs free energy; reaction rate; thermodynamics; secondary porosity; the fourth member of Quantou Formation; the northern Songliao......
Calculation of free energy of Al-Cu-Li alloy under electric field ZHANG Jian-jun(张建军)1, WANG Yong-xin(王永欣)1, CHEN Zheng(陈 铮)1, 2, LIU Bing(刘 兵)1 1. School of Materials Science and Engineering...; Abstract: Based on Thomas-Fermi model, the interior potential boundary condition with the effect of electric field was defined, the calculation method of free energy for atom cluster under......
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-zhuang (School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract: The transition data and Gibbs energy functions of pure elemental Cu in SGTE database... and Gibbs energy. Keeping the continuum of cp, H and S between the supercooled and real liquid phase of Cu at melting point, the thermodynamic properties of liquid Cu can be obtained and they agree......
