Effect of Ga Addition on Morphology and Recovery of Primary Si During Al–Si Alloy Solidification Refining
| Autor: | Jingwei Li, Boyuan Ban, Jian Chen, Yanlei Li, Xiaolong Bai |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
primary si
Technology Primary (chemistry) Materials science Morphology (linguistics) al–si–ga alloy gallium addition Chemical technology Alloy Metallurgy Chemicals: Manufacture use etc TP200-248 TP1-1185 engineering.material Condensed Matter Physics Recovery rate recovery rate Mechanics of Materials size distribution engineering General Materials Science Physical and Theoretical Chemistry Refining (metallurgy) |
| Zdroj: | High Temperature Materials and Processes, Vol 34, Iss 8, Pp 833-838 (2015) |
| ISSN: | 2191-0324 0334-6455 |
| Popis: | The effect of Ga addition on alloy macrostructure, morphology and recovery rate of primary Si during the Al–Si–Ga alloy solvent refining process of silicon was studied in this work. The addition of Ga to Al–Si alloy could change the morphology of the primary Si. The average plate thickness of the primary Si increases with increase of Ga content. With the increase of Ga content, the average plate length of the primary Si crystals becomes larger when the Ga content is less than 5% in the Al–30%Si–xGa alloy, but becomes smaller when the Ga content exceeds 5%. Al–Si–Ga alloys consist of three types, primary Si, Ga x Al1–x , (α-Al+Si+β-Ga) eutectic. (111) is the preferred growth surface of the plate-like primary Si. The recovery rate of the primary Si increases with the increase of Ga content. When the Ga content increased to 20% in Al–30%Si–xGa alloy, the relative recovery rate of the primary Si increased to 50.41% than that in Al–30%Si alloy. |
| Databáze: | OpenAIRE |
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