Electromagnetic characteristics of square cold crucible designed for silicon preparation

In the present work, the strength and distribution of electromagnetic field in the square cold crucible that designed for casting multicrystalline silicon were measured and analyzed by using a small coil method. The results show that in the perpendicular direction the maximum of magnetic flux densit...

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Main Authors: Chen Ruirun, Huang Feng, Guo Jingjie
Format: Article
Language:English
Published: Foundry Journal Agency 2011-05-01
Series:China Foundry
Subjects:
Online Access:http://www.foundryworld.com/uploadfile/2011062942588473.pdf
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author Chen Ruirun
Huang Feng
Guo Jingjie
author_facet Chen Ruirun
Huang Feng
Guo Jingjie
author_sort Chen Ruirun
collection DOAJ
description In the present work, the strength and distribution of electromagnetic field in the square cold crucible that designed for casting multicrystalline silicon were measured and analyzed by using a small coil method. The results show that in the perpendicular direction the maximum of magnetic flux density (B) appears at the position slightly above the middle of the coil, and then B attenuates toward both sides, and decreases more to the bottom of the crucible. In the horizontal direction, from the edge (corner) to the center, B firstly decreases gradually, and then slightly increases in the center. While along the inner sides of the crucible, the distribution is relatively uniform, especially in the effective acting range. B increases with the increasing of the input power. Moving the coil to the top of the crucible, B increases and the effective acting range of the electromagnetic field becomes bigger. For the coils with different turns, the five turns coil can induce the highest magnetic flux density.
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spelling doaj.art-980fe75f6d544b1a8b29ff46dc2ef74e2022-12-22T01:20:20ZengFoundry Journal AgencyChina Foundry1672-64212011-05-0182207211Electromagnetic characteristics of square cold crucible designed for silicon preparationChen RuirunHuang FengGuo JingjieIn the present work, the strength and distribution of electromagnetic field in the square cold crucible that designed for casting multicrystalline silicon were measured and analyzed by using a small coil method. The results show that in the perpendicular direction the maximum of magnetic flux density (B) appears at the position slightly above the middle of the coil, and then B attenuates toward both sides, and decreases more to the bottom of the crucible. In the horizontal direction, from the edge (corner) to the center, B firstly decreases gradually, and then slightly increases in the center. While along the inner sides of the crucible, the distribution is relatively uniform, especially in the effective acting range. B increases with the increasing of the input power. Moving the coil to the top of the crucible, B increases and the effective acting range of the electromagnetic field becomes bigger. For the coils with different turns, the five turns coil can induce the highest magnetic flux density.http://www.foundryworld.com/uploadfile/2011062942588473.pdfcold cruciblemagnetic flux densitymulticrystalline siliconelectromagnetic casting
spellingShingle Chen Ruirun
Huang Feng
Guo Jingjie
Electromagnetic characteristics of square cold crucible designed for silicon preparation
China Foundry
cold crucible
magnetic flux density
multicrystalline silicon
electromagnetic casting
title Electromagnetic characteristics of square cold crucible designed for silicon preparation
title_full Electromagnetic characteristics of square cold crucible designed for silicon preparation
title_fullStr Electromagnetic characteristics of square cold crucible designed for silicon preparation
title_full_unstemmed Electromagnetic characteristics of square cold crucible designed for silicon preparation
title_short Electromagnetic characteristics of square cold crucible designed for silicon preparation
title_sort electromagnetic characteristics of square cold crucible designed for silicon preparation
topic cold crucible
magnetic flux density
multicrystalline silicon
electromagnetic casting
url http://www.foundryworld.com/uploadfile/2011062942588473.pdf
work_keys_str_mv AT chenruirun electromagneticcharacteristicsofsquarecoldcrucibledesignedforsiliconpreparation
AT huangfeng electromagneticcharacteristicsofsquarecoldcrucibledesignedforsiliconpreparation
AT guojingjie electromagneticcharacteristicsofsquarecoldcrucibledesignedforsiliconpreparation