Indiffusion of cobalt in amorphous Co-Zr

Lars-Ulrik Aaen Andersen, Jørgen Bøttiger, Jakob Janting, N. Karpe, K. K. Larsen, A. L. Greer, R. E. Somekh

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

By use of trilayers consisting of ∼35 nm cobalt, ∼45 nm amorphous Co-Zr, and ∼35 nm cobalt, the indiffusion of cobalt into the amorphous structure was studied by means of Rutherford backscattering spectroscopy (RBS). At temperatures between 650 K and 690 K, an initially high diffusion essentially stopped after 20-40 min. annealing before equilibrium was reached. It is proposed that the effect is related to the diffusional asymmetry in the amorphous phase. The relatively immobile zirconium atoms cannot relax their configuration to permit cobalt indiffusion up to the equilibrium value.
Original languageEnglish
JournalMaterials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing
VolumeA133
Pages (from-to)415-417
ISSN0921-5093
DOIs
Publication statusPublished - 1991
Externally publishedYes
EventSeventh International Conference on Rapidly Quenched Materials - Stockholm, Sweden
Duration: 13 Aug 199017 Aug 1990

Conference

ConferenceSeventh International Conference on Rapidly Quenched Materials
CountrySweden
CityStockholm
Period13/08/199017/08/1990

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