The lattice parameter of α-bronzes as a function of solute content:: application to archaeological materials

被引：47
作者：
Sidot, E
Kahn-Harari, A
Cesari, E
Robbiola, L
机构：
[1] ENSCP, Lab Met Struct, F-75005 Paris, France
[2] ENSCP, CNRS, Lab Chim Appl Etat Solide, UMR 7574, F-75005 Paris, France
[3] Univ Illes Balears, Dept Fis, E-07122 Palma de Mallorca, Spain
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 393卷 / 1-2期
关键词：
Cu-Sn; Cu-Sn-Zn; copper alpha-phase; substitutional solid solution; Vegard's law; non-destructive analysis;
D O I：
10.1016/j.msea.2004.10.001
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The lattice parameter of Cu substitutional solid solution-alpha-phase-has been studied in relation with the solute content. The investigation was conducted on pure binary Cu-Sn, industrial Cu-Sn-Zn alloys and archaeological bronzes. Lattice parameters and elemental compositions of the alpha-phase have been determined by X-ray diffraction and X-ray spectrometry. A linear relation between the unit cell constant and the atomic tin equivalent content in the alpha-phase has been evidenced and characterised, in fair agreement with Vegard's law. Addition of lead and trace elements has no significant effect on the results. Therefore, the tin equivalent content of the alpha-phase can be determined from XRD evaluation of the lattice parameter. As a consequence, a new approach is proposed for setting composition standards in alpha-(Cu-Sn) and alpha-(Cu-Sn-Zn) bronzes and application to characterization of ancient bronzes is discussed. (C) 2004 Elsevier B.V. All rights reserved.
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页码：147 / 156
页数：10
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