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Proceedings Paper

Occurrence of ferromagnetic shape memory alloys
Author(s): Manfred R. Wuttig; Koichi Tsuchiya; Richard D. James
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Paper Abstract

This article presents an overview of the necessary conditions for the formation of Shape Memory Alloys (SMAs) and how these must overlap with the occurrence of ferromagnetism so that FerroMagnetic Shape Memory Alloys (MSMAs) may be formed. The electronic, elastic and geometric conditions permit an understanding of the occurrence of Cu and Fe based SMAs as well as NiMnGa Heusler MSMAs except that the naively determined critical electron concentration for the latter, 7.3, disagrees with the values of 1.5 and 8.6 accepted for the Hume-Rothery Phases and certain Fe- based systems.

Paper Details

Date Published: 14 June 2000
PDF: 5 pages
Proc. SPIE 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics, (14 June 2000); doi: 10.1117/12.388211
Show Author Affiliations
Manfred R. Wuttig, Univ. of Maryland/College Park (United States)
Koichi Tsuchiya, Toyahashi Univ. of Technology (Japan)
Richard D. James, Univ. of Minnesota/Twin Cities (United States)


Published in SPIE Proceedings Vol. 3992:
Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics
Christopher S. Lynch, Editor(s)

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