Structure of isomorphous liquid Ag-Au alloys

被引：15

作者：

Bai, Yanwen ^{[1
]}

Bian, Xiufang ^{[1
]}

Qin, Xubo ^{[1
]}

Qin, Jingyu ^{[1
]}

Lv, Xiaoqian ^{[1
]}

Sun, Junzhe ^{[1
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2010年 / 356卷 / 35-36期

基金：

中国国家自然科学基金;

关键词：

Liquid structure; X-ray diffractometer; Isomorphous/eutectic alloy melts; Mean nearest neighbor distance; SOLIDIFICATION PROCESS; X-RAY; NEUTRON-DIFFRACTION; EUTECTIC REGION; SOLID STATES; SI ALLOYS; INTENSITIES; EVOLUTION; CLUSTERS; GE;

D O I：

10.1016/j.jnoncrysol.2010.07.012

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Liquid structure features of isomorphous Ag-Au alloys were investigated using an X-ray diffractometer. The mean nearest neighbor distance r(1) of Ag-Au melts at the same temperature remains stable at different compositions. For the eutectic melts under discussion, r(1) takes on a linear relationship with element component, and the slope of r(1) versus composition depends on the atomic size ratio. In addition, r(1) of both Ag-Au and Cu-Ni isomorphous melts stays stable with decreasing temperature above liquidus. Compared to these isomorphous alloys, the temperature-dependent r(1) of eutectic melts obviously exhibits. The structural differences of melts between isomorphous and eutectic alloy systems, as well as the correlation between liquid structure and the corresponding solid state were investigated. Finally. Gaussian decomposition was performed to get a better understanding of the liquid structures of Ag-Au alloys. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1823 / 1828

页数：6

共 32 条

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[Anonymous], LIQUID METALS

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[Anonymous], SCI MAT STRUCTURE

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[Anonymous], METALLOFIZIKA

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