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Domain models for ferromagnetic shape-memory materials

✍ Scribed by A.T. Onisan; A.N. Bogdanov; U.K. Rößler

Book ID
103999108
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
761 KB
Volume
58
Category
Article
ISSN
1359-6454

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✦ Synopsis

A domain model for the twin variant and magnetic domain distribution in bulk systems of ferromagnetic shape-memory materials has been developed. The approach combines crystal elasticity, compatibility of a twinned microstructure with a tetragonal lattice structure, and micromagnetic domain theory. The model is applied to calculate phase diagrams under external magnetic fields and stresses for Ni-Mn-Ga as a magnetic system with easy-axis anisotropy and for Fe-Pd with easy-plane 4-fold anisotropies.

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