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Proceedings Paper

Damping behavior of polymer composites with high volume fraction of NiMnGa powders
Author(s): Xiaogang Sun; Jie Song; Hong Jiang; Xiaoning Zhang; Chaoying Xie
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Paper Abstract

Polymer composites inserted with high volume fraction (up to 70 Vol%) of NiMnGa powders were fabricated and their damping behavior was investigated by dynamic mechanical analysis. It is found that the polymer matrix has little influence on the transformation temperatures of NiMnGa powders. A damping peak appears for NiMnGa/epoxy resin (EP) composites accompanying with the martensitic transformation or reverse martensitic transformation of NiMnGa powders during cooling or heating. The damping capacity for NiMnGa/EP composites increases linearly with the increase of volume fraction of NiMnGa powders and, decreases dramatically as the test frequency increases. The fracture strain of NiMnGa/EP composites decrease with the increase of NiMnGa powders.

Paper Details

Date Published: 27 April 2011
PDF: 8 pages
Proc. SPIE 7977, Active and Passive Smart Structures and Integrated Systems 2011, 79771G (27 April 2011); doi: 10.1117/12.881852
Show Author Affiliations
Xiaogang Sun, Shanghai Jiao Tong Univ. (China)
Jie Song, Shanghai Jiao Tong Univ. (China)
Hong Jiang, Shanghai Jiao Tong Univ. (China)
Xiaoning Zhang, Shanghai Jiao Tong Univ. (China)
Chaoying Xie, Shanghai Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 7977:
Active and Passive Smart Structures and Integrated Systems 2011
Mehrdad N. Ghasemi-Nejhad, Editor(s)

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