Liquid phase separation in immiscible Ag-Ni-Nb alloy and formation of crystalline/amorphous composite

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	Liquid phase separation in immiscible Ag-Ni-Nb alloy and formation of crystalline/amorphous composite
	J. He; H. X. Jiang; S. Chen; J. Z. Zhao; L. Zhao
	2011
发表期刊	Journal of Non-Crystalline Solids
ISSN	0022-3093
卷号	357 期号:21 页码:3561-3564
摘要	Phase decomposition in liquid miscibility gap presents a unique opportunity for designing amorphous/crystalline composites with a multilayer structure. One of typical monotectic systems, Ag-Ni alloy, is selected, and element Nb is added in the Ag-Ni alloy. The new ternary Ag-Ni-Nb monotectic alloys are rapidly quenched by using melt spinning technique. It is revealed that the ternary alloy undergoes a liquid-liquid phase decomposition and forms two immiscible Ag-rich and NiNb-rich liquids. Subsequently, the immiscible liquids solidify into Ag-rich crystalline and NiNb-based amorphous phases, respectively. Self-assembled amorphous/crystalline composites with double layer and sandwich type structures have been developed. The structure of the alloy ribbons with a dependence on the composition changes from a particle-dispersed structure to double layer structure and to sandwich type structure. The phase formation and thermal property of the quenched alloys are investigated. The formation mechanism of the crystalline/amorphous composite structures has been discussed. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[he, jie; jiang, hongxiang; chen, shu; zhao, jiuzhou; zhao, lei] chinese acad sci, inst met res, shenyang 110016, peoples r china.;he, j (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jiehe@imr.ac.cn
关键词	Metallic Glasses Composites Immiscible Alloys Liquid Phase Decomposition Ag-ni-nb Alloys Glass Matrix Composites Bulk Metallic Glasses In-situ Formation Al-co Alloy Microstructure Enhancement Plasticity Systems Lead
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WOS记录号	WOS:000295564400002
引用统计	被引频次：19[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/321006/30381
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. He,H. X. Jiang,S. Chen,et al. Liquid phase separation in immiscible Ag-Ni-Nb alloy and formation of crystalline/amorphous composite[J]. Journal of Non-Crystalline Solids,2011,357(21):3561-3564.
APA	J. He,H. X. Jiang,S. Chen,J. Z. Zhao,&L. Zhao.(2011).Liquid phase separation in immiscible Ag-Ni-Nb alloy and formation of crystalline/amorphous composite.Journal of Non-Crystalline Solids,357(21),3561-3564.
MLA	J. He,et al."Liquid phase separation in immiscible Ag-Ni-Nb alloy and formation of crystalline/amorphous composite".Journal of Non-Crystalline Solids 357.21(2011):3561-3564.