One-step fabrication of Cu-Al2O3 nanocomposite via solution combustion synthesis route

被引:37
作者
Nasiri, H. [1 ]
Khaki, J. Vahdati [1 ]
Zebarjad, S. M. [1 ]
机构
[1] Ferdowsi Univ Mashhad, Dept Mat Sci & Engn, Fac Engn, Mashhad, Iran
关键词
Cu-Al2O3; nanocomposite; Solution combustion synthesis; XRD; Graphite; HIGH-TEMPERATURE SYNTHESIS; NANO-SCALE COMPOSITES; PARTICLES; POWDERS; FUEL;
D O I
10.1016/j.jallcom.2011.01.185
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Solution combustion synthesis (SCS) is a well-known method for production of different metal oxides and composite materials such as metal matrix composites. To the best of our knowledge, producing of metal matrix composite needs an extra reduction step after combustion synthesis. In the current research, the authors introduced a novel method to eliminate the reduction step and showed that Cu matrix composite could be produced just in one-step. For this purpose, Cu(NO3)(2)center dot 3H(2)O and Al (NO3)(3)center dot 9H(2)O were used as oxidizers and urea as fuel, and one-step combustion synthesis was performed in the presence of graphite. The structure and morphology of the products were studied by XRD, SEM and TEM techniques, respectively. XRD patterns proved that the presence of graphite could prevent formation of copper oxides. SEM and TEM micrographs showed that Cu matrix reinforced with nano-sized alumina could be achieved in one-step through SCS method. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:5305 / 5308
页数:4
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