Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8000703 | Journal of Alloys and Compounds | 2015 | 5 Pages |
Abstract
Distribution coefficient of boron between purified solid silicon and iron-silicon melt at infinite dilution of boron was evaluated to investigate the effectiveness of boron removal from silicon by solvent refining using iron. The estimated values for distribution coefficient of boron at infinite dilution are: 0.49 ± 0.01 (1583 K), 0.41 ± 0.03 (1533 K) and 0.33 ± 0.04 (1483 K). The distribution coefficient increases with temperature showing less boron removal at higher temperatures. The estimated values for self interaction parameter of boron are as follow: â96 ± 12 (1583 K), â111 ± 28 (1533 K) and â159 ± 45 (1483 K). Activity coefficient of boron in solid silicon was obtained and related to temperature as lnγBinsolidSi0=(16317±282)1T-(7.06±0.18).
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Leili Tafaghodi Khajavi, Kazuki Morita, Takeshi Yoshikawa, Mansoor Barati,