Sponsors:
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Organized by
the Department of Solid State Physics, Faculty of Physics, University
of Bialystok
Klaus-Ulrich Neumann
Department of Physics
Loughborough University, UK
Shape memory materials
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An introduction is given into shape memory behaviour of metallic, and
in particular ferromagnetic, materials such as Ni2MnGa
and related alloys. The lecture focuses on the structural aspects of
shape memory behaviour and presents a detailed discussion of structural
investigations, in particular neutron scattering experiments. The
lecture discusses various alloy series based on a variation of the
basic Ni2MnGa compound. Some characteristic
notions, which
are currently used in the literature for the explanation of systematic
behaviour in these alloy series, are addressed. In particular the
notion of valence electron concentration is investigated experimentally
and its relevance for the description of systematic changes in an alloy
series is examined.
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