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Artificially Synthesized Non-Coherent Interfaces in Fe-Ti Multilayers and their Influence on Solid State Reactions

Published online by Cambridge University Press:  15 February 2011

Z.H. Yan ,
M.L. Trudeau ,
A. Van Neste ,
R. Schulz ,
D.H. Ryan ,
P. Tessier ,
R. Bormann  and
J.O. Ström-Olsen
Z.H. Yan
Affiliation:
Materials Technology Dept., Hydro-Québec Research Institute, Varennes, P.Q., J3X 1S1, Canada Centre for the Physics of Materials, McGill University, Montreal, P.Q., H3A 2T8, Canada
M.L. Trudeau
Affiliation:
Materials Technology Dept., Hydro-Québec Research Institute, Varennes, P.Q., J3X 1S1, Canada
A. Van Neste
Affiliation:
Metallurgy Department, Laval University, Ste-Foy, P.Q., G1K 7P4, Canada
R. Schulz
Affiliation:
Materials Technology Dept., Hydro-Québec Research Institute, Varennes, P.Q., J3X 1S1, Canada Centre for the Physics of Materials, McGill University, Montreal, P.Q., H3A 2T8, Canada
D.H. Ryan
Affiliation:
Centre for the Physics of Materials, McGill University, Montreal, P.Q., H3A 2T8, Canada
P. Tessier
Affiliation:
Centre for the Physics of Materials, McGill University, Montreal, P.Q., H3A 2T8, Canada
R. Bormann
Affiliation:
Institute for Materials Research, GKSS-Research Center, D-2054 Geesthacht, Germany
J.O. Ström-Olsen
Affiliation:
Centre for the Physics of Materials, McGill University, Montreal, P.Q., H3A 2T8, Canada
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Abstract

The influence of the interfacial structure on the solid state reaction products in Fe-Ti multilayers has been studied using various preparation conditions and characterization techniques. Sharp and diffused interfaces were produced by using either sequential or co-evaporation in the interfacial region. The reaction product, in the case of the sharp interface, is the bcc supersaturated solid solution of Ti(Fe) while, in the case of the diffused interface, an amorphous phase is formed. Therefore, nucleating the amorphous phase at the interface by local co-evaporation alters the reaction path observed in Fe-Ti multilayers. The solid state reactions were studied using low and high angle X-ray diffraction and Mossbauer measurements. The results are discussed in light of recent thermodynamic calculations on the Fe-Ti system.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 343: Symposium H – Polycrystalline Thin Films - Structure, Texture, Properties and Applications , 1994 , 235
Copyright
Copyright © Materials Research Society 1994

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References

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