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Influence of Phosphorus on the Calorimetric, Magnetic and Mechanical Properties of Amorphous Fe78 Si9B13 Alloys

Published online by Cambridge University Press:  26 February 2011

P. Rudkowski ,
J. O. Strom-Olsen ,
R. Schulz  and
R. Roberge
P. Rudkowski
Affiliation:
Physics Dept., McGill University, Montreal, Quebec, H3A 2T8.
J. O. Strom-Olsen
Affiliation:
Physics Dept., McGill University, Montreal, Quebec, H3A 2T8.
R. Schulz
Affiliation:
IREQ, Institut de Recherche d'Hydro-Quebec, Varennes, Quebec. JOL 2PO
R. Roberge
Affiliation:
IREQ, Institut de Recherche d'Hydro-Quebec, Varennes, Quebec. JOL 2PO
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Abstract

The effects of adding small amounts of phosphorus to amorphous Fe78Si9B13 alloys have been investigated. Substituting boron atoms by phosphorus improves the thermal stability of the glassy alloys. The optimum stability is reached at about 1.2 at. % phosphorus concentration. With respect to the soft ferromagnetic properties, the saturation induction increases rapidly with increasing phosphorus concentration, reaches a maximum around 0.1–0.2 at. % and then decreases upon further addition. The highest induction value was achieved with 0.1 at. % phosphorus after field annealing for 2 hours around 633K. The mechanical strength of the amorphous alloy is greatly reduced for phosphorus concentrations larger than 0.4 at. %.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 80: Symposium G – Science and Technology of Rapidly Quenched Alloys , 1986 , 171
Copyright
Copyright © Materials Research Society 1987

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