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New Fe-Ni Based Metal-Metalloid Glassy Alloys Prepared by Mechanical Alloying and Rapid Solidification

Published online by Cambridge University Press:  10 February 2011

J. J. Suñol ,
M. T. Clavaguera-Mora ,
N. Clavaguera  and
T. Pradell
J. J. Suñol
Affiliation:
Grup de Recerca en Materials, Universität de Girona, Santaló s/n. 17071-Girona, Spain.
M. T. Clavaguera-Mora
Affiliation:
Grup de Física de Materials I, Dept de Física, Universität Autònoma de Barcelona, 08193-Bellaterra, Spain.
N. Clavaguera
Affiliation:
Grup de Fisica de l'Estat Sòlid, Dept ECM, Facultat de Fisica, Universität de Barcelona, Diagonal 647, 08028-Barcelona, Spain.
T. Pradell
Affiliation:
Dept Fisica, ESAB ads. Universität Politècnica de Catalunya, Urgell 187, 08036-Barcelona, Spain.
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Abstract

Mechanical alloying and rapid solidification are two important routes to obtain glassy alloys. New Fe-Ni based metal-metalloid (P-Si) alloys prepared by these two different processing routes were studied by differential scanning calorimetry and transmission Mössbauer spectroscopy. Mechanical alloyed samples were prepared with elemental precursors, and different nominal compositions. Rapidly solidified alloys were obtained by melt-spinning. The structural analyses show that, independent of the composition, the materials obtained by mechanical alloying are not completely disordered whereas fully amorphous alloys were obtained by rapid solidification. Consequently, the thermal stability of mechanically alloyed samples is lower than that of the analogous material prepared by rapid solidification. The P/Si ratio controls the magnetic interaction of the glassy ribbons obtained by rapid solidification. The experimental results are discussed in terms of the degree of amorphization and crystallization versus processing route and P/Si ratio content.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 455: Symposium T – Glasses and Glass Formers–Current Issues , 1996 , 489
Copyright
Copyright © Materials Research Society 1997

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References

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