Effect of segregation on the formation of interface structures. Example ofCr-Doped CoO

Authors
Bernasik, A Kowalski, K Nowotny, J
Citation
A. Bernasik et al., Effect of segregation on the formation of interface structures. Example ofCr-Doped CoO, SOL ST ION, 117(1-2), 1999, pp. 171-173
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
117
Issue
1-2
Year of publication
1999
Pages
171 - 173
Database
ISI
SICI code
0167-2738(199902)117:1-2<171:EOSOTF>2.0.ZU;2-H
Abstract
This paper considers the formation of spinel-type structures at the surface of Cr-doped CoO. This structure, which is formed at elevated temperatures, decomposes during slow cooling and impoverishment of the surface layer in Cr occurs. Analysis of the effect of cooling rate on the Cr concentration p rofile in the boundary layer indicates that the decomposition of the surfac e structure is controlling the process of Cr desegregation during cooling r ather than Cr lattice diffusion. (C) 1999 Elsevier Science B.V. All rights reserved.