Materials Reports  2019, Vol. 33 Issue (z1): 28-32 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Effect of Temperature on Solidification Rate During Directional Solidification of Multicrystaline Silicon |
| YANG Jinxiang1,2, SHI Shuang1,2,3, JIANG Dachuan1,2,3, LI Xu1,2, LI Pengting1,2, TAN Yi1,2, YAO Yujie3, CHI Ming3, ZHANG Runde3, ZHANG Jianshuai3
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1 School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024
2 Key Laboratory for Solar Energy Photovoltaic System of Liaoning Province, Dalian 116024
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Abstract During directional solidification of multicrystaline silicon, solidification rate is an important parameter that affects the product quality, but it is difficult to measure directly. In this study, based on the thermal equilibrium in the thermal field of directional solidification furnace, a solidification rate calculation model was established and the effect of temperature on the solidification rate was studied. The results show that there is a regular change trend of temperature gradient ratio in liquid and solid phase during solidification .The theoretical value of solidification rate obtained by this model is in good agreement with the experimental value. It can provide support for the evaluation and regulation of the solidification rate during directional solidification of multicrystaline silicon.
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Published: 05 July 2019
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| About author:: Jinxiang Yang graduated from Shandong University of Technology in June 2017 with a bachelor’s degree in engineering. He is currently a graduate student in the School of Materials Science and Engineering, Dalian University of Technology, under the guidance of Associate Professor Dachuan Jiang. The current research direction is solar-grade polysilicon manufacturing technology and numerical simulation.Dachuan Jiang is an associate professor and master tutor at the School of Materials Science and Engineering, Dalian University of Technology. He graduated from the School of Materials Science and Engineering of Dalian University of Technology in July 2006. He obtained his Ph.D. in Materials Science from Dalian University of Technology in March 2012 and his postdoctoral research in the Department of Chemical Engineering of Dalian University of Technology from 2012 to 2014. He is mainly engaged in the research of metallurgical manufacturing and industrialization of silicon materials. |
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