|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >
The estimation of concentration fluctuations in liquid Ag-Si and Au-Si alloys
| Title: | The estimation of concentration fluctuations in liquid Ag-Si and Au-Si alloys |
| Authors: | Itami, Toshio Browse this author | | Aoki, Hirokatsu Browse this author | | Shibata, Takeru Browse this author | | Ikeda, Motoshige Browse this author | | Hotozuka, Koichi Browse this author |
| Keywords: | Liquid alloys and liquid metals | | Electrical and electronic properties | | Conductivity | | Liquid crystals and molecular liquid |
| Issue Date: | 15-Oct-2007 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Journal of Non-Crystalline Solids |
| Volume: | 353 |
| Issue: | 32-40 |
| Start Page: | 3011 |
| End Page: | 3016 |
| Publisher DOI: | 10.1016/j.jnoncrysol.2007.05.153 |
| Abstract: | The specific electrical resistivity was measured for liquid states of Ag–Si and Au–Si with deep eutectic points for which the ‘electron atom ratio’ at the eutectic composition is 1.33 and 1.56, respectively. On lowering the temperature, the specific electrical resistivity deviates from the straight line, which was obtained by extrapolating its behavior from high to low temperatures. The concentration dependence of this deviation at the liquidus shows the largest value at the eutectic composition. The analysis based on the effective medium theory tells us that the volume fraction of concentration fluctuation in the homogeneous liquid phase is largest at the eutectic composition. The degree of concentration fluctuation was summarized on one systematic trend among metal–semiconductor eutectic systems. It is concluded that the large concentration fluctuation develops in the homogeneous liquid phase of eutectic systems. The possibility of the poor supercooling tendency of homogeneous liquids at the eutectic composition was revealed with relation to this concentration fluctuation. |
| Relation: | http://www.sciencedirect.com/science/journal/00223093 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/30258 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 伊丹 俊夫
|
