dc.contributor.author | Safarian-Dastjerdi, Jafar | |
dc.contributor.author | Tang, Kai | |
dc.contributor.author | Hildal, Kjetil | |
dc.contributor.author | Tranell, Gabriella | |
dc.date.accessioned | 2017-11-21T09:07:29Z | |
dc.date.available | 2017-11-21T09:07:29Z | |
dc.date.created | 2014-04-07T09:26:57Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Metallurgical and Materials Transactions E. 2014, 1 (1), 41-47. | nb_NO |
dc.identifier.issn | 2196-2936 | |
dc.identifier.uri | http://hdl.handle.net/11250/2467264 | |
dc.description.abstract | Boron (B) is one of the most problematic impurities to remove from metallurgical grade silicon in the production of more pure solar grade silicon (SoG-Si). In the present work, recent progresses in the application of reactive gases for B removal from molten silicon is reviewed. Moreover, in order to clarify the mechanisms and kinetics of gas-based B-refining, an experimental procedure using humidified Ar, N2, and H2 gases applied to boron-doped silicon melt is described. It is shown that the kinetics and extent of B removal is depending on the type of humidified gas. The thermodynamics and kinetics of B removal from molten silicon are studied to explain experimental observations. The mass transfer coefficients of B are calculated and possible mechanisms for B removal by the reactive gases are proposed: 1/2H 2 (g) B − +H − +H 2 O(g) =H, − \hfill =HBO(g)+H 2 .\hfill It is shown that the lower equilibrium partial pressure of HBO gas at higher temperatures causes slower B removal rate. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Springer Verlag | nb_NO |
dc.title | Boron Removal from Silicon by Humidified Gases | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 41-47 | nb_NO |
dc.source.volume | 1 | nb_NO |
dc.source.journal | Metallurgical and Materials Transactions E | nb_NO |
dc.source.issue | 1 | nb_NO |
dc.identifier.doi | 10.1007/s40553-014-0007-8 | |
dc.identifier.cristin | 1127304 | |
dc.description.localcode | © Springer Verlag. This is the authors' accepted and refereed manuscript to the article. The final publication is available at https://link.springer.com/article/10.1007%2Fs40553-014-0007-8 | nb_NO |
cristin.unitcode | 194,66,35,0 | |
cristin.unitname | Institutt for materialteknologi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |