Numerical simulation of liquid-encapsulant float zone growth of indium phosphide crystals in zero gravity
- 作者：Mingwei Li ; Chunmei Liu ; Tingxia Zhu
- 关键词：Float zone ; Liquid encapsulant ; InP ; Fluid flow ; Heat transfer ; Thermal stress
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2008
- 期刊代码：42_00179310
- 类别：ce
- 出版时间：February 2008
- 卷：51
- 期：3-4
- 页码：844-852
- 文件大小：487 K
摘要
Numerical simulation for flow, heat transfer and thermal stress for a 3 in. diameter liquid-encapsulated float zone growth of single-crystal InP is conducted by using the finite-element method under zero gravity condition. The results show that the crystal and feed rod rotation rate has a notable influence on the flow pattern in the melt. It also shows that the melt/crystal interface shape becomes more convex and the maximum value of thermal stress in the crystal reduces with increasing encapsulant thickness, decreasing pulling rate and decreasing the length of the melting zone.