Crystallization of Spherical Single Crystal of Silicon from Undercooled Droplet under Containerless Processing

Zeng Yun Jian; Kazuhiko Kuribayashi; Wan Qi Jie

doi:10.4028/www.scientific.net/MSF.475-479.2603

Paper Titles

Morphology of Primary Silicon and its Growth Mechanism in Hypereutectic Al-Si Alloys during Melt Overheating Treatment
p.2587

Effect of Filler Wire Composition on the Nd:YAG Laser Weldability of 6061 Aluminum Alloy
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Refining of Metallurgical-Grade Silicon by Thermal Plasma Arc Melting
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Damping Behavior of the High Strength Aluminum Alloy Prepared by Rapid Solidification and Powder Metallurgy Process
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Crystallization of Spherical Single Crystal of Silicon from Undercooled Droplet under Containerless Processing
p.2603

Directional Solidification of Undercooled Hypoeutectic Silver-Copper Alloy Melt
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Microstructure Evolution of a Zn-4wt.% Cu Hyperperitectic Alloy under Laser Surface Remelting
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Research on Molten Pool Shape during Laser Rapid Forming through the Close-Range Continuous Photography
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Unidirectionally Solidified Al-Cu Eutectic Alloy under High Intensity Pulsed Magnetic Field
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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Crystallization of Spherical Single Crystal of...

Crystallization of Spherical Single Crystal of Silicon from Undercooled Droplet under Containerless Processing

Abstract:

The images of the growing crystal in the growth process of the undercooled droplets of silicon were lively recorded by using a high-speed camera. The number of crystal that nucleated spontaneously from the undercooled liquid was found to decrease to 1 when the undercooling was higher than 5K. The morphology of the growing single crystal of silicon was a thin plate. A model for predicting the critical undercooling of growing single crystal of silicon from undercooled liquid has been developed. The theoretically predicted value of the undercooling from present model for silicon is in agreement with the experimentally measured result.