DMA testing of Ni-Mn-Ga/polymer composites

被引：52
作者：
Lahelin, M. [1 ]
Aaltio, I. [2 ]
Heczko, O. [2 ]
Soderberg, O. [2 ]
Ge, Y. [2 ]
Lofgren, B. [1 ]
Hannula, S. -P. [2 ]
Seppala, J. [1 ]
机构：
[1] Aalto Univ, Dept Biotechnol & Chem Technol, FI-02015 Espoo, Finland
[2] Aalto Univ, Dept Mat Sci & Engn, FI-02015 Espoo, Finland
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2009年 / 40卷 / 02期
关键词：
Polymer matrix composites (PMCs); Internal friction/damping; Adhesion; Mechanical properties; ENERGY-ABSORPTION; TEMPERATURE-DEPENDENCE;
D O I：
10.1016/j.compositesa.2008.10.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni-Mn-Ga/polymer composites are an interesting group of materials with new potential for applications such as vibration damping. Polymer selection is critical for Ni-Mn-Ga/polymer composites. The transition temperatures of both components Should be selected carefully considering the future application the contact between Ni-Mn-Ga and polymer is important and stiffness of the polymer matrix is One of the influencing factors. The adhesion between Ni-Mn-Ga and the polymer matrix was studied in shear stress tests. Ni-Mn-Ga adhered strongly to the tested epoxies but considerably less so to silicones. The damping properties of Ni-Mn-Ga/polymer composites were studied by dynamic mechanical analysis (DMA). Compared to the pure polymer sample, DMA measurements confirmed extra damping in the martensite-austenite transition temperature region of the Ni-Mn-Ga after a soft epoxy matrix had been applied. (C) 2008 Elsevier Ltd. All rights reserved.
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页码：125 / 129
页数：5
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