| 分离结晶Bridgman法晶体生长过程的影响因素 |
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| 引用本文： | 彭岚,范菊艳,张全壮.分离结晶Bridgman法晶体生长过程的影响因素[J].工程热物理学报,2010(4). |
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| 作者姓名： | 彭岚 范菊艳 张全壮 |
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| 作者单位： | 重庆大学动力工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(No.50676112) |
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| 摘 要： | 本文采用全局数值模拟方法探讨了微重力条件下温度梯度对分离结晶Bridgman法晶体生长系统的作用规律。同时,在常重力条件下研究了坩埚半径对晶体生长系统的影响。结果发现,在微重力条件下随着温度梯度的增加,晶体生长系统内部的流动强度随之增加,且由于晶体生长系统低温区温度不断降低,使得结晶界面位置不断上升;在常重力条件下,重力的作用随着坩埚半径的增加而增强,导致晶体生长系统内部的流动强度增加,最大流函数增大。
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| 关 键 词： | 分离结晶 CdZnTe晶体 全局数值模拟 温度梯度 坩埚半径 |
THE INFLUENCE FACTOR OF THE DETACHED SOLIDIFICATION BRIDGMAN GROWTH |
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| PENG Lan FAN Ju-Fan ZHANG Quan-Zhuang.THE INFLUENCE FACTOR OF THE DETACHED SOLIDIFICATION BRIDGMAN GROWTH[J].Journal of Engineering Thermophysics,2010(4). |
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| Authors: | PENG Lan FAN Ju-Fan ZHANG Quan-Zhuang |
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| Institution: | College of Power Engineering;Chongqing University;Chongqing 400044;China |
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| Abstract: | The effect of temperature gradient on the detached solidification Bridgman growth is studied by global simulation method in microgravity.In gravity the influence of crucible radius on the system is also researched.The results show that the flow is intensified with the increase of temperature gradient in microgravity,and the solid-liquid interface ascends due to the decrease of the cold zone temperature.In gravity,the gravity effect is enhanced with the increase of crucible radius, so that the flow is streng... |
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| Keywords: | detached solidification CdZnTe global simulation temperature gradient crucible radius |
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