Damping behavior of polymer composites with high volume fraction of NiMnGa powders

被引：1
|
作者：
Sun, Xiaogang [1 ]
Song, Jie [1 ]
Jiang, Hong [1 ]
Zhang, Xiaoning [1 ]
Xie, Chaoying [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China
来源：
ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2011 | 2011年 / 7977卷
关键词：
NiMnGa; shape memory alloy; martensitic transformation; composite materials; damping; SHAPE-MEMORY ALLOY; MATRIX COMPOSITES; SMART COMPOSITES; TRANSFORMATIONS; PARTICLES; PHASE;
D O I：
10.1117/12.881852
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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页数：8
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