1. Physical Chemistry Of Metals Darken And Gurry Pdf Free
2. Physical Chemistry Of Metals Darken And Gurry Pdf Download

Lawrence Stamper Darken (18 Sept. 1909, Brooklyn NY – 7 June 1978, State College PA)^[1] was a physical chemist and metallurgist, known for his two equations describing solid-state diffusion in binary solutions.

Darken and R. Gurry: Physical Chemistry of Metals (Metallurgy and Metallurgical Engineering Series), McGraw-Hill Book Company, Inc., New York, 1953, p. Structure and Physical. Figure E.2 The starxiard free energy of formation of metal oxides as a function of temperature. Gurry, 1953, Physical Chemistry of Metals, Fig. Reprinted by permission of McGraw-Hill, Inc., New York.) 180.

He earned his bachelor's degree in mathematics and chemistry from Hamilton College and attained his doctoral degree in physical chemistry at Yale in 1933,^[2] followed by two postdoctoral years. From 1935 to 1971 Darken was employed at U.S. Steel Corporation Research Laboratory where he was director of the Edgar C. Bain Laboratory for Fundamental Research.^[2] After his retirement from U.S. Steel in 1971, he was appointed professor of mineral science at Pennsylvania State University.^[2]

In addition to his two equations on diffusion, Dr. Darken made contributions to the field with respect to chemical rate phenomena in liquid steel and slags, thermodynamics of metallic solutions, and phase equilibria in various ternary systems.^[3] He also wrote the textbook Physical chemistry of metals with R. W. Gurry.^[4]

In 1968 he received the R. W. Hunt Outstanding Paper Award from the Association for Iron and Steel Technology (AIST) for his papers Thermodynamics of Binary Metallic Solutions and Thermodynamics of Ternary Metallic Solutions.^[5] He was also awarded a Gold Medal from the American Society for Metals.^[2]

See also[edit]

• Gibbs-Duhem equation#Ternary and multicomponent solutions and mixtures ('Lawrence Stamper Darken has shown ...')

References[edit]

1. ^Lawrence Stamper Darken Find a grave
2. ^ ^abcdDr. Lawrence S. Darken, 68, Ex.Professor of Mineral Science New York Times, 12 June 1978
3. ^Fisher R.M., R.A. Oriani, E.T. Turkdogan. Darken Conference.23–25 August 1976. Pittsburgh: Herbick & Held, 1976.Print
4. ^Darken, L. S.; Gurry, R. W. (1953). Physical chemistry of metals. McGraw-Hill. ISBN978-0070153554.
5. ^Hunt-Kelly Outstanding Paper Award Recipients. Section Hunt Recipients (prior to 2004) AIST Association for Iron and Steel Technology

Abstract

The activity of FeTiO₃ in the binary ilmenitepyrophanite (FeTiO₃-MnTiO₃) solid solution has been determined for the temperature range 1050–1300 K by displacement of the reaction: 2 FeTiO₃=2 Fe+2 TiO₂+O₂ in T-μO₂ space, using an electrochemical technique with calcia- and yttria-stabilized zirconia solid electrolytes. The activities show small positive deviations from ideality, which, although the data are unusually precise, may be perfectly described by the simple regular solution model, with an interaction parameter, W^ilm_Fe-Mn, of 2.2±0.3 kJ g-atom⁻¹, which is independent of temperature. This value, together with the experimental data on the partitioning of Fe and Mn between ilmenite and garnet (Pownceby et al. 1987), gives W^gt_Fe-Mn=1.2±0.5 kJ g-atom⁻¹ for the almandine-spessartine (Fe₃Al₂Si₃O₁₂-Mn₃Al₂Si₃O₁₂) solid solution.

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