Cu-Zr-Ag bulk metallic glasses based on Cu8Zr5 icosahedron

IMR OpenIR

	Cu-Zr-Ag bulk metallic glasses based on Cu8Zr5 icosahedron; Cu-Zr-Ag bulk metallic glasses based on Cu8Zr5 icosahedron
	J. H. Xia; J. B. Qiang; Y. M. Wang; Q. Wang; C. Dong
	2007 ; 2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing ; Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093 ; 0921-5093
卷号	449 页码:281-284
摘要	Based on the cluster line criterion, the Ag addition into the Cu8Zr5 cluster composition is investigated for the search of ternary Cu-Zr-Ag bulk metallic glasses with high glass forming abilities. Two initial binary compositions Cu0.618Zr0.382 and Cu0.64Zr0.36 are selected. The former one corresponds to a deep eutectic point; it is also the composition of the Cu8Zr5 icosahedron, which is derived from the Cu8Zr3 structure. The latter one, which can be regarded as the Cu8Zr5 cluster plus a glue atom Cu, is the best glass-forming composition in the Cu-Zr binary system. Two composition lines (Cu0.618Zr0.382)(1-x)Ag-x and (Cu0.64Zr0.36)(1-x)Ag-x are thus constructed in the Cu-Zr-Ag system by linking these two compositions with the third constitute Ag. A series of Cu-Zr-Ag bulk metallic glasses are found with 2-8 at.% Ag contents in both composition lines. The optimum composition (Cu0.618Zr0.382)(0.92)Ag-0.08 within the searched region with the highest T-g/T-l = 0.633, is located along the cluster line (Cu0.618Zr0.382)(1-x)Ag-x where the deep eutectic Cu0.61Zr0.382 exactly corresponds to the dense packing cluster Cu8Zr5. The alloying mechanism is discussed in the light of atomic size and electron concentration factors. (c) 2006 Elsevier B.V. All rights reserved.; Based on the cluster line criterion, the Ag addition into the Cu8Zr5 cluster composition is investigated for the search of ternary Cu-Zr-Ag bulk metallic glasses with high glass forming abilities. Two initial binary compositions Cu0.618Zr0.382 and Cu0.64Zr0.36 are selected. The former one corresponds to a deep eutectic point; it is also the composition of the Cu8Zr5 icosahedron, which is derived from the Cu8Zr3 structure. The latter one, which can be regarded as the Cu8Zr5 cluster plus a glue atom Cu, is the best glass-forming composition in the Cu-Zr binary system. Two composition lines (Cu0.618Zr0.382)(1-x)Ag-x and (Cu0.64Zr0.36)(1-x)Ag-x are thus constructed in the Cu-Zr-Ag system by linking these two compositions with the third constitute Ag. A series of Cu-Zr-Ag bulk metallic glasses are found with 2-8 at.% Ag contents in both composition lines. The optimum composition (Cu0.618Zr0.382)(0.92)Ag-0.08 within the searched region with the highest T-g/T-l = 0.633, is located along the cluster line (Cu0.618Zr0.382)(1-x)Ag-x where the deep eutectic Cu0.61Zr0.382 exactly corresponds to the dense packing cluster Cu8Zr5. The alloying mechanism is discussed in the light of atomic size and electron concentration factors. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china. dalian univ technol, dept mat engn, dalian 116024, peoples r china. city univ hong kong, dept phys & mat sci, kowloon, hong kong, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;dong, c (reprint author), dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china;dong@dlut.edu.cn ; dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china. dalian univ technol, dept mat engn, dalian 116024, peoples r china. city univ hong kong, dept phys & mat sci, kowloon, hong kong, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;dong, c (reprint author), dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china;dong@dlut.edu.cn
关键词	Bulk Metallic Glasses Bulk Metallic Glasses Cu-zr-ag Alloys Cu-zr-ag Alloys Cu8zr5 Icosahedron Cu8zr5 Icosahedron Short-range Order Short-range Order Mechanical-properties Mechanical-properties Calorimetric Evidence Calorimetric Evidence Supercooled Liquid Supercooled Liquid Thermal-stability Thermal-stability Amorphous-alloys Amorphous-alloys Criterion Criterion
URL	查看原文 ; 查看原文
WOS记录号	WOS:000245477800061 ; WOS:000245477800061
引用统计	被引频次：18[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/321006/33932
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. H. Xia,J. B. Qiang,Y. M. Wang,et al. Cu-Zr-Ag bulk metallic glasses based on Cu8Zr5 icosahedron, Cu-Zr-Ag bulk metallic glasses based on Cu8Zr5 icosahedron[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007, 2007,449, 449:281-284, 281-284.
APA	J. H. Xia,J. B. Qiang,Y. M. Wang,Q. Wang,&C. Dong.(2007).Cu-Zr-Ag bulk metallic glasses based on Cu8Zr5 icosahedron.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,449,281-284.
MLA	J. H. Xia,et al."Cu-Zr-Ag bulk metallic glasses based on Cu8Zr5 icosahedron".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 449(2007):281-284.