Diffusion in Concentration Gradients

Autor:	Han-Ill Yoo
Rok vydání:	2020
Předmět:	Condensed Matter::Materials Science Materials science Drift velocity Kirkendall effect Component (thermodynamics) Diffusion Thermodynamics Binary system Concentration gradient Thermal diffusivity Matrix (geology)
Zdroj:	Lectures on Kinetic Processes in Materials ISBN: 9783030259495
DOI:	10.1007/978-3-030-25950-1_4
Popis:	This chapter is concerned with the phenomenon of interdiffusion (or chemical diffusion) under a concentration (or chemical) gradient in a binary system. When the self-diffusivities of the two components are different, there arises a global drift of the matrix in the interdiffusion or mixing zone, which consequentially results in a single interdiffusion or chemical diffusion coefficient (Kirkendall effect). We will analyze this effect phenomenologically and atomistically to understand the interrelationship between the component self-diffusivities and the common chemical diffusivity and the thermodynamic and atomistic inner-workings behind. This is the climax of the diffusion story of a non-charged particles system.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c4e3ad67bfbc8589f85875e19581b998 https://doi.org/10.1007/978-3-030-25950-1_4 Zobrazit plný text záznamu