Автор |
Ruan Ying |
Автор |
Wang Nan |
Автор |
Cao Chong-De |
Автор |
Wei Bing-Bo |
Дата выпуска |
2004-08-01 |
dc.description |
The crystal nucleation and growth mechanism during the formation of Ag <sub>42.4</sub> Cu <sub>21.6</sub> Sb<sub>36</sub> ternary eutectic are investigated under substantial undercooling conditions. The x-ray diffraction analysis shows that the solidified eutectic phases are not involved (Ag) within a wide undercooling range of 6–114 K. This indicates that under high undercooling condition, the phase constitution of Ag–Cu–Sb eutectic is different from that in the equilibrium phase diagram. With the increase of undercooling, the crystalline morphology of Ag <sub>42.4</sub> Cu <sub>21.6</sub> Sb<sub>36</sub> alloy transforms from the mixed structure of primary θ(Cu<sub>2</sub>Sb), two pseudobinary eutectics and (ε+θ+Sb) ternary eutectic into a unique (ε+θ+Sb) ternary eutectic. The calculated results indicate that θ(Cu<sub>2</sub>Sb) is the leading nucleating phase among the three eutectic phases. In addition, the growth morphology of primary ε(Ag<sub>3</sub>Sb) compound in Ag<sub>60</sub>Cu<sub>6</sub>Sb<sub>34</sub> alloy exhibits the characteristics of solid solution and its orthorhombic dendrite grows along the ⟨111⟩ directions. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Ternary Eutectic Growth in a Highly Undercooled Liquid Alloy |
Тип |
paper |
DOI |
10.1088/0256-307X/21/8/050 |
Electronic ISSN |
1741-3540 |
Print ISSN |
0256-307X |
Журнал |
Chinese Physics Letters |
Том |
21 |
Первая страница |
1590 |
Последняя страница |
1592 |
Аффилиация |
Ruan Ying; Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 |
Аффилиация |
Wang Nan; Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 |
Аффилиация |
Cao Chong-De; Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 |
Аффилиация |
Wei Bing-Bo; Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 |
Выпуск |
8 |