In situ Al(2)O(3) particle-reinforced Al and Cu matrix composites synthesized by displacement reactions

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	In situ Al(2)O(3) particle-reinforced Al and Cu matrix composites synthesized by displacement reactions
	B. Yang; M. Sun; G. S. Gan; C. G. Xu; Z. J. Huang; H. B. Zhang; Z. G. Z. Fang
	2010
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	494 期号:1-2 页码:261-265
摘要	An innovative in situ reaction technique is developed for the synthesis of Al(2)O(3)/Al and Al(2)O(3)/Cu composites. This technique provides a new approach overcoming the problems of loss and agglomeration of reinforcement particles when the particles are added directly into their matrixes by a conventional ex situ technique. The experimental results have shown that the presence of network Al(Cu)-CuAl(2) eutectic, which is detrimental not only to the fracture toughness, but also to the stability of the microstructure, can be reduced from the final product by introducing two or more oxides into the synthesis. Moreover, the network CuAl(2) phase can be eliminated entirely only by changing Al matrix into Cu matrix when Al amount is not excess in the Al-CuO preforms. The mechanisms of formation or absence of Al(Cu)-CuAl(2) eutectic in the Al(2)O(3)/Al and Al(2)O(3)/Cu composites are explained based upon thermodynamics of the systems. The modification of the microstructures in the in situ synthesis Al(2)O(3)/Al, Al(2)O(3)/Al-Si-Cu, Al(2)O(3)/Al-Si-Cu-Mn and Al(2)O(3)/Cu composites can be understood in the light of thermodynamics. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[yang, bin; zhang, haibo; fang, zhigang zak] univ utah, dept met engn, salt lake city, ut 84112 usa. [yang, bin; sun, miao; gan, guisheng; xu, cunguan; huang, zanjun] univ sci & technol beijing, state key lab adv met & mat, beijing 100083, peoples r china. [yang, bin] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;yang, b (reprint author), univ utah, dept met engn, 135 south 1460 east,room 412, salt lake city, ut 84112 usa;byang@ustb.edu.cn
关键词	Microstructure Aluminum And Copper Matrix Composites In Situ Synthesis Al(2)o(3) Particle Microstructure Aluminum Nanocomposite
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31630
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Yang,M. Sun,G. S. Gan,et al. In situ Al(2)O(3) particle-reinforced Al and Cu matrix composites synthesized by displacement reactions[J]. Journal of Alloys and Compounds,2010,494(1-2):261-265.
APA	B. Yang.,M. Sun.,G. S. Gan.,C. G. Xu.,Z. J. Huang.,...&Z. G. Z. Fang.(2010).In situ Al(2)O(3) particle-reinforced Al and Cu matrix composites synthesized by displacement reactions.Journal of Alloys and Compounds,494(1-2),261-265.
MLA	B. Yang,et al."In situ Al(2)O(3) particle-reinforced Al and Cu matrix composites synthesized by displacement reactions".Journal of Alloys and Compounds 494.1-2(2010):261-265.