Experimental Studies on Melting Behavior of Silicon Powders by In-Flight Plasma Melting Technique
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Published:2014-05-23
Issue:
Volume:783-786
Page:1880-1885
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ISSN:1662-9752
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Container-title:Materials Science Forum
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language:
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Short-container-title:MSF
Author:
Yoo Shin1,
Moon Ki Hyeon1,
Hyun Seong Yoon1,
Won Seo Kyung1,
Shin Geon1
Affiliation:
1. Process Engineering Group POSCO
Abstract
An experimental approach has been used to investigate the charateristics of silicon type powders using heat source of thermal plasma. In this paper, laboratory scale furnace (0.0529m3) using non-transferred hollow thermal plasma torch (150kW) is applied for the rapid melting and the impurities components volatilization. The components and the crystallization behavior of silicon type raw material for complete melting using in-flight melting technique with continuous powder feeding (500~1000 g min-1) into the furnace are investigated by changing the melting atmosphere. The determination of impurities absorption and erodability of the furnace caused by the extremely high localized tempeartures of plasma heat source and molten material is also followed.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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