Fabrication of magnetic shape memory alloy/polymer composites

R. Ham-Su; J. P. Healey; R. S. Underhill; S. P. Farrell; L. M. Cheng; C. V. Hyatt; R. Rogge; M. A. Gharghouri

doi:10.1117/12.598153

16 May 2005 Fabrication of magnetic shape memory alloy/polymer composites

R. Ham-Su, J. P. Healey, R. S. Underhill, S. P. Farrell, L. M. Cheng, C. V. Hyatt, R. Rogge, M. A. Gharghouri

Proceedings Volume 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics; (2005) https://doi.org/10.1117/12.598153
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

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.

Citation Download Citation

R. Ham-Su, J. P. Healey, R. S. Underhill, S. P. Farrell, L. M. Cheng, C. V. Hyatt, R. Rogge, and M. A. Gharghouri "Fabrication of magnetic shape memory alloy/polymer composites", Proc. SPIE 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, (16 May 2005); https://doi.org/10.1117/12.598153

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