Separation of Pure Silicon from Al-Si Alloy Melts

Ki Young Kim; Jong Sik Shin; Dong Wha Park

doi:10.4028/www.scientific.net/MSF.783-786.186

Paper Titles

Morphology of Si Phase in Al-Mg-Si-Cu Alloys with Excess Si Addition
p.161

Dynamic Observation of Hydrogen Gas Release during Crack Propagation in Al-Zn-Mg Alloy
p.168

Isothermal and Non-Isothermal Annealing of Cold-Rolled Al-Mn-Fe-Si Alloys with Different Microchemistry States
p.174

Effect of Heat Treatment Conditions and Small Addition of Cu on Occurrence of Serration in Al-Si Alloys
p.180

Separation of Pure Silicon from Al-Si Alloy Melts
p.186

The Evolution of Texture and Deformation Anisotropy at an Equal Channel Extruded Aluminum 1050 Alloy
p.192

Onset of the Portevin-Le Chatelier Effect: Role of Synchronization of Dislocations
p.198

Multiscale Analysis of Acoustic Emission during Plastic Flow of Al and Mg Alloys: From Microseconds to Minutes
p.204

Quantitative Investigation on Nano-Scale Precipitates in an Al-7.5Zn-1.7Mg-1.4Cu-0.12Zr Alloy under Various Aging Tempers
p.210

HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Separation of Pure Silicon from Al-Si Alloy Melts

Separation of Pure Silicon from Al-Si Alloy Melts

Abstract:

Pure silicon can be obtained from Al-Si alloys by a combination of solvent refining and centrifugation. Primary silicon crystals are separated in the form of a foam after centrifugation. A vertical centrifugal separator is used which needs no more effort for further separation since each part of the high and low silicon content is divided automatically into two pieces after centrifugation. This centrifugal method does not use the density difference between two phases as in other methods, but uses the order of solidification in Al-Si alloys. How to make the Si foam, its characteristics including its density and strength, and purity of the extracted Si particles after acid leaching are reviewed.

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Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

186-191

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.186

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Online since:

May 2014

Authors:

Ki Young Kim*, Jong Sik Shin, Dong Wha Park

Keywords:

Al-Si Alloy, Centrifugation, Primary Silicon, Solvent Refining

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