Fundamentals of Modeling for Metals Processing
Diffusion is the process by which molecules, atoms, ions, point defects, or other particle types migrate from a region of higher concentration to one of lower concentration. This article focuses on the diffusivity data and modeling of lattice diffusion in solid-state materials, presenting their diffusion equations. It discusses different methods for evaluating the diffusivity of a material, including the measurement of diffusion coefficients, composition profiles, and layer growth widths. The article reviews the various types of direct and indirect diffusion experiments to extract tracer, intrinsic, and chemical diffusivities. It provides information on the applications of single-phase and multiphase diffusion.
Carelyn E. Campbell, Diffusivity and Mobility Data, Fundamentals of Modeling for Metals Processing, Vol 22A, ASM Handbook, Edited By D.U. Furrer, S.L. Semiatin, ASM International, 2009, p 171–181, https://doi.org/10.31399/asm.hb.v22a.a0005430
Download citation file:
FALL / WINTER 2020 CATALOG
View the new, upcoming, and best-selling resources in ASM Handbooks, technical books, and databases in the Fall / Winter 2020 Catalog.