| 工业硅中杂质铁去除的理论分析 |
| |
| 引用本文： | 梁连科,杨怀,郭仲文. 工业硅中杂质铁去除的理论分析[J]. 东北大学学报(自然科学版), 1991, 0(6) |
| |
| 作者姓名： | 梁连科 杨怀 郭仲文 |
| |
| 作者单位： | 东北工学院钢铁冶金系(梁连科，杨怀)，东北工学院钢铁冶金系(郭仲文) |
| |
| 摘 要： | 分析了硅中杂质的分凝特性,计算、讨论了在定向凝固条件下硅中铁的有效分凝系数 K_(fef)和凝固速度 f的关系,并用生产实践中铁在硅锭中的分布,验证了理论分析的可靠性。提出了用组合结晶器定向凝固技术去除工业硅中杂质铁的工艺方法。
|
| 关 键 词： | 工业硅 杂质去除 有效分凝系数 组合结晶器 定向凝固 |
Theoretical Considerations of Removal of Iron Impurity in Commercial Silicon |
| |
| Liang Lianke,Yang Huai,Guo Zhongwen. Theoretical Considerations of Removal of Iron Impurity in Commercial Silicon[J]. Journal of Northeastern University(Natural Science), 1991, 0(6) |
| |
| Authors: | Liang Lianke Yang Huai Guo Zhongwen |
| |
| Abstract: | Based on an analysis made theoretically to the segregation behavior of some impurities in commercial silicon,the relationship between the useful segrega- tion coefficient of iron impurity Kfef and its solidifying rate f is discussed and calculated under conditions of oriented solidification. Reliability of the theoretical considerations has been verified in industrial practice as shown by the iorn distribution in silicon ingots.An effective process is thus suggested to remove iron impurity in commercial silicon by way of a new solidification technique utilizing a combination mould. |
| |
| Keywords: | commercial silicon impurity removal useful segregation coefficient combination mould oriented solidification. |
| 本文献已被 CNKI 等数据库收录！ |
