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Mass Transport in Solids
Author(s) -
Frischat Günther Heinz
Publication year - 1974
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197403841
Subject(s) - diffusion , chemical physics , electron microprobe , microprobe , crystallinity , chemistry , ion , diffusion process , self diffusion , materials science , thermodynamics , crystallography , mineralogy , physics , innovation diffusion , organic chemistry , computer science , knowledge management , self service , computer security
Two aspects are especially important in connection with mass transport in solids; these are the phenomenological description of the diffusion process and the discussion of the transport mechanism. In addition to the self‐diffusion of the constituent ions or atoms of a solid, which can be followed only with the aid of radioactive or stable isotopes, other known types of diffusion are the diffusion of trace elements, which can in principle be treated in the same way as self‐diffusion, and chemical diffusion, in which the diffusion partners differ in their chemical composition. Processes of this type are being increasingly studied with the electron beam microprobe. Regardless of the crystallinity and the type of bonding, problems concerned with diffusion in solids can be discussed from a single standpoint by slight adaptation to suit the particular situation in question.