Superheating of Ag nanoparticles embedded in Ni matrix

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	Superheating of Ag nanoparticles embedded in Ni matrix
	J. Zhong; L. H. Zhang; Z. H. Jin; M. L. Sui; K. Lu
	2001
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	49 期号:15 页码:2897-2904
摘要	Nanometer-sized Ag particles embedded in a Ni matrix were prepared by using melt spinning. The uniformly distributed Ag nanoparticles with a mean size of 30 nm exhibit a cube-cube orientation relationship with the Ni matrix, and some Ag nanoparticles are surrounded by {111} and {100} low-energy interfaces. Differential scanning calorimetry (DSc) and in situ X-ray diffraction (XRD) analysis results indicate that the Ag nanoparticles can be substantially superheated above the equilibrium melting point (TO) of the bulk Ag, as much as about 70 K above T-0 in the DSC measurement at a heating rate of 20 K/min. The superheating phenomenon is reproducible upon several heating/cooling cycles. In situ XRD results also indicate that the smaller the Ag particle, the higher the superheating. Our observations can be qualitatively interpreted with thermodynamic considerations. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china.;lu, k (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china;kelu@imr.ac.cn
关键词	Melt Spinning Superheating Al Matrix Melting Behavior Pb Particles Temperature Aluminum
URL	查看原文
WOS记录号	WOS:000170652100004
引用统计	被引频次：94[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36951
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Zhong,L. H. Zhang,Z. H. Jin,et al. Superheating of Ag nanoparticles embedded in Ni matrix[J]. Acta Materialia,2001,49(15):2897-2904.
APA	J. Zhong,L. H. Zhang,Z. H. Jin,M. L. Sui,&K. Lu.(2001).Superheating of Ag nanoparticles embedded in Ni matrix.Acta Materialia,49(15),2897-2904.
MLA	J. Zhong,et al."Superheating of Ag nanoparticles embedded in Ni matrix".Acta Materialia 49.15(2001):2897-2904.