Damping characteristics of Al matrix composite foams reinforced by in-situ grown carbon nanotubes

被引：34
|
作者：
Yang, Kunming [1 ]
Yang, Xudong [2 ]
He, Chunnian [1 ,3 ]
Liu, Enzuo [1 ,3 ]
Shi, Chunsheng [1 ]
Ma, Liying [1 ]
Li, Qunying [1 ]
Li, Jiajun [1 ]
Zhao, Naiqin [1 ,3 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China
[2] Civil Aviat Univ China, Sino European Inst Aviat Engn, Tianjin 300300, Peoples R China
[3] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
来源：
MATERIALS LETTERS | 2017年 / 209卷
基金：
中国国家自然科学基金;
关键词：
Chemical vapor deposition; Carbon nanotubes; Interfaces; Porous materials; Damping properties; ALUMINUM FOAMS; FABRICATION;
D O I：
10.1016/j.matlet.2017.07.126
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The damping properties of Al matrix composite foams reinforced by in-situ grown carbon nanotubes (CNTs) have been investigated. The results show that the damping capacity of the CNT/Al composite foams is visibly enhanced with the CNT addition. The loss factors of the composite foams are found not only increase with the increment of CNT content but also increase with the porosity raising. For the 3.0 wt%-CNT/Al composite foams, the loss factor keeps the level of similar to 0.26 at 25-200 degrees C and further increases to 0.36 when the temperature is elevated to 390 degrees C, which is similar to 2.71 and 1.77 times higher than that of the pure Al foam, respectively. The damping improvement of CNT/Al composite foams is mainly due to the high inherent damping of CNTs and the formation of large numbers of well-bonded CNT-Al interfaces. (c) 2017 Published by Elsevier B.V.
引用
收藏
页码：68 / 70
页数：3
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