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


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
Pages (from-to)415-417
Publication statusPublished - 1991
Externally publishedYes
EventSeventh International Conference on Rapidly Quenched Materials - Stockholm, Sweden
Duration: 13 Aug 199017 Aug 1990


ConferenceSeventh International Conference on Rapidly Quenched Materials

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