Distribution and integrity of carbon nanotubes in carbon nanotube/magnesium composites

被引：0
|
作者：
Li, C.D. [1 ]
Wang, X.J. [1 ]
Wu, K. [1 ]
Liu, W.Q. [1 ]
Xiang, S.L. [1 ]
Ding, C. [1 ]
Hu, X.S. [1 ]
Zheng, M.Y. [1 ]
机构：
[1] Li, C.D.
[2] Wang, X.J.
[3] Wu, K.
[4] Liu, W.Q.
[5] Xiang, S.L.
[6] Ding, C.
[7] Hu, X.S.
[8] Zheng, M.Y.
来源：
Wang, X.J. (xjwang@hit.edu.cn) | 1600年 / Elsevier Ltd卷 / 612期
关键词：
Carbon nanotubes (CNTs) reinforced magnesium matrix composite prepared by an improved process was extruded at 350 °C with an extrusion ratio of 20:1. Most CNTs were individually and uniformly dispersed in the as-cast and the as-extruded composites. Moreover; good interfacial bonding was achieved; and Raman spectroscopy showed that the damage to CNTs was insignificant. The addition of CNTs could weaken basal plane texture. Meanwhile; the CNTs evidently improved the ultimate tensile strength; yield strength and Young's modulus of the as-extruded composite. Pulling-out CNTs proved that the length of the CNTs was not large enough to be compatible with the high strength of the CNTs. Grain refinement; load transfer mechanism and Orowan strengthening mechanism play important roles on the increase of the yield strength. The composites fabricated by our process showed high strengthening efficiency of CNTs. © 2014 Elsevier Inc. All rights reserved;
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页码：330 / 336
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