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

doi:10.1016/0921-5093(91)90099-9

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 journal › Conference article › Research › peer-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 language	English
Journal	Materials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing
Volume	A133
Pages (from-to)	415-417
ISSN	0921-5093
DOIs	https://doi.org/10.1016/0921-5093(91)90099-9
Publication status	Published - 1991
Externally published	Yes
Event	7^th International Conference on Rapidly Quenched Materials - Stockholm, Sweden Duration: 13 Aug 1990 → 17 Aug 1990

Conference

Conference	7^th International Conference on Rapidly Quenched Materials
Country/Territory	Sweden
City	Stockholm
Period	13/08/1990 → 17/08/1990

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title = "Indiffusion of cobalt in amorphous Co-Zr",

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.",

author = "Andersen, {Lars-Ulrik Aaen} and J{\o}rgen B{\o}ttiger and Jakob Janting and N. Karpe and Larsen, {K. K.} and Greer, {A. L.} and Somekh, {R. E.}",

year = "1991",

doi = "10.1016/0921-5093(91)90099-9",

language = "English",

volume = "A133",

pages = "415--417",

journal = "Materials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing",

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publisher = "Elsevier",

note = "7<sup>th</sup> International Conference on Rapidly Quenched Materials, RQ7 ; Conference date: 13-08-1990 Through 17-08-1990",

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TY - GEN

T1 - Indiffusion of cobalt in amorphous Co-Zr

AU - Andersen, Lars-Ulrik Aaen

AU - Bøttiger, Jørgen

AU - Janting, Jakob

AU - Karpe, N.

AU - Larsen, K. K.

AU - Greer, A. L.

AU - Somekh, R. E.

PY - 1991

Y1 - 1991

N2 - 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.

AB - 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.

U2 - 10.1016/0921-5093(91)90099-9

DO - 10.1016/0921-5093(91)90099-9

M3 - Conference article

SN - 0921-5093

VL - A133

SP - 415

EP - 417

JO - Materials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing

JF - Materials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing

T2 - 7<sup>th</sup> International Conference on Rapidly Quenched Materials

Y2 - 13 August 1990 through 17 August 1990

ER -

Indiffusion of cobalt in amorphous Co-Zr

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