Results 241 to 250 of about 13,762 (298)
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Journal of Phase Equilibria & Diffusion, 2006
The interdiffusion coefficients of Zn, Ag, Sb, Pb, and Bi in liquid Sn were determined using both shear cell and long capillary techniques. These elements were chosen to provide a range of valences and atomic radii, variables that are expected to affect the interdiffusion coefficients.
John Cahoon +3 more
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The interdiffusion coefficients of Zn, Ag, Sb, Pb, and Bi in liquid Sn were determined using both shear cell and long capillary techniques. These elements were chosen to provide a range of valences and atomic radii, variables that are expected to affect the interdiffusion coefficients.
John Cahoon +3 more
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Interdiffusion in Intermetallics
Metallurgical and Materials Transactions A, 2013Recently, Tiwari and Mehrotra asserted that the vacancy flux in interdiffusion is driven by a vacancy concentration gradient and also that interdiffusion in intermetallics cannot proceed by the six-jump cycle, triple defect, and antistructural bridge mechanisms.
Irina V. Belova, Graeme E. Murch
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Annual Review of Materials Science, 1984
The talk will begin with a review of interdiffusion in bulk diffusion couples. The understanding of the behavior in bulk couples will serve as a reference for comparing the behavior in thin films. While interdiffusion is a generic problem in a layered structure from a technological point of view, it has shown certain unique kinetic phenomena in thin ...
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The talk will begin with a review of interdiffusion in bulk diffusion couples. The understanding of the behavior in bulk couples will serve as a reference for comparing the behavior in thin films. While interdiffusion is a generic problem in a layered structure from a technological point of view, it has shown certain unique kinetic phenomena in thin ...
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2004
AbstractInterdiffusion microstructures appear as a region on either side of the original interface of contact between two materials. This article outlines the principles used in analyzing various interdiffusion microstructures: binary systems, copper-base systems, nickel-base systems, and silicide-forming systems.
J.E. Morral, M.A. Dayananda
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AbstractInterdiffusion microstructures appear as a region on either side of the original interface of contact between two materials. This article outlines the principles used in analyzing various interdiffusion microstructures: binary systems, copper-base systems, nickel-base systems, and silicide-forming systems.
J.E. Morral, M.A. Dayananda
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An Examination of Diffusion Paths in Terms of Interdiffusion Fluxes and Interdiffusion Coefficients
Defect and Diffusion Forum, 2007Selected diffusion couples investigated in the Cu-based and Fe-based multicomponent systems are examined for diffusion path development, zero-flux planes, uphill diffusion, and internal constraints for diffusion paths. The couples are analyzed for interdiffusion fluxes and interdiffusion coefficients with the aid of the “MultiDiFlux” program ...
Kevin M. Day, Mysore A. Dayananda
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Early stages of polymer interdiffusion
Physical Review E, 2003We have examined the wavelength dependence of the diffusion coefficient in a multilayer deuterated polystyrene-hydrogenated polystyrene system. The measurements were performed using neutron reflectivity. The decay of the Bragg peak was also followed in great detail.
Sivaniah, E. +2 more
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Journal of Inorganic and Nuclear Chemistry, 1964
Chronopotentiometry was used to determine the interdiffusion coefficients and heats of activation for Ag/sup +/ Cd/sup 2+/ Pb/sup 2+/, Bi/sup 3+/, and U/sup 4+/ in lithium chloride--potassium chloride eutectic and for Ag/ sup +/ in molten sodium nitrate and in molten cesium nitrate. In LiCl-- KCl, the diffusion coefficients in cm/sup 2//sec x 10/sup 6/
C.E. Thalmayer +2 more
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Chronopotentiometry was used to determine the interdiffusion coefficients and heats of activation for Ag/sup +/ Cd/sup 2+/ Pb/sup 2+/, Bi/sup 3+/, and U/sup 4+/ in lithium chloride--potassium chloride eutectic and for Ag/ sup +/ in molten sodium nitrate and in molten cesium nitrate. In LiCl-- KCl, the diffusion coefficients in cm/sup 2//sec x 10/sup 6/
C.E. Thalmayer +2 more
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The Kirkendall Effect in Multiphase Interdiffusion
Defect and Diffusion Forum, 2003The Kirkendall effect mediated migration of inert inclusions during multiphase diffusion can be rationalized using a Kirkendall velocity construction. It is demonstrated that the Kirkendall plane locations inside the diffusion zone can be identified by grain morphology changes within the microstructure of the reaction products. The latter is the result
Paul, A. +3 more
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Numerical Solution of an Interdiffusion Problem
SIAM Journal on Numerical Analysis, 1992The interdiffusion problem of two alloys is studied. It is assumed that the alloys are brought into contact and then heated to a fixed temperature. The problem is considered to be one-dimensional, the time dependent change of concentration being caused by convective and diffusive fluxes, with the diffusion coefficient depending on the local ...
Fresnel, Christophe +1 more
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Interdiffusion in binary ionic mixtures
Physical Review A, 1987In this paper we present molecular-dynamics and kinetic-theory calculations of the interdiffusion coefficients in dense binary ionic mixtures for conditions appropriate to both astrophysical and inertial-confinement fusion (ICF) plasmas. The diffusion coefficient is the product of a Green-Kubo integral and a thermodynamic prefactor.
, Boercker, , Pollock
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