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Proceedings Paper

Fabrication of magnetic shape memory alloy/polymer composites
Author(s): R. Ham-Su; J. P. Healey; R. S. Underhill; S. P. Farrell; L. M. Cheng; C. V. Hyatt; R. Rogge; M. A. Gharghouri
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Paper Abstract

NiMnGa-based magnetic shape memory (MSM) alloys have attained magnetic-field-induced strains up to approximately 10%, making them very attractive for a variety of applications. However, for applications that require the use of an alternating magnetic field, eddy current losses can be significant. Also, NiMnGa-based MSM alloys' fracture toughness is relatively low. Using these materials in the form of particles embedded in a polymer matrix composite could mitigate these limitations. Since the MSM effect is anisotropic, the crystallographic texture of the particles in the composites is of great interest. In this work, a procedure for fabricating NiMnGa-based MSMA/elastomer composites is described. Processing routes for optimizing the crystallographic texture in the composites are considered.

Paper Details

Date Published: 16 May 2005
PDF: 11 pages
Proc. SPIE 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, (16 May 2005); doi: 10.1117/12.598153
Show Author Affiliations
R. Ham-Su, Defence R&D Canada - Atlantic (Canada)
J. P. Healey, Defence R&D Canada - Atlantic (Canada)
R. S. Underhill, Defence R&D Canada - Atlantic (Canada)
S. P. Farrell, Defence R&D Canada - Atlantic (Canada)
L. M. Cheng, Defence R&D Canada - Atlantic (Canada)
C. V. Hyatt, Defence R&D Canada - Atlantic (Canada)
R. Rogge, National Research Council of Canada (Canada)
M. A. Gharghouri, National Research Council of Canada (Canada)


Published in SPIE Proceedings Vol. 5761:
Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics
William D. Armstrong, Editor(s)

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