电磁自约束定向生长条件下影响温度场的若干因素^①

来源期刊：中国有色金属学报1996年第4期

论文作者：沈军 李金山 李建国 傅恒志 曾凡昌 崔正山

文章页码：122 - 125

关键词：电磁约束； 液柱头； 温度场； 温度梯度

Key words：electromagnetic constrain;　meniscus;　temperature field;　temperature gradient

摘    要：探讨了电磁自约束定向生长条件下，温度分布对抽拉速度的响应，以及电磁搅拌引起的对流对温度分布以及固/液界面上温度梯度G_L的作用。检测了液柱头高度，固/液界面位置对温度场以及温度梯度G_L的影响。结果提供了几种增高温度梯度G_L的有效途径。

Abstract: Under the condition of electromagnetic self-constrained directional solidification, the response of temperature distribution to drawing rate and the effects of convection caused by electromagnetic stirring on temperature distribution and temperature gradient G_L on the solid/liquid interface were explored. Influences of meniscus height and solid/liquid interface position on temperature distribution and G_L were detected. Finally several effective ways to increase G_L were obtained from the experimental results.