Metallurgical Grade Silicon
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Purificação de silicio metalurgico por fusão zonal horizontal em forno de feixe de eletrons / Purification of metallurgical silicon by horizontal zone melting in an electron beam furnace
The search for renewable energy sources has caused a boom in the production of solar cells in this decade, which rose from 0.3 GW in 2002 to 6.0 GW in 2008, totaling 37 billion dollars in 2008. The production of Electronic Grade Silicon (SiGE) increased 127% from 2007 to 2008, and approximately 90% of solar cells produced nowadays use SiGE, which is responsi
Publicado em: 2009
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2. Macrosegregation of Impurities in a Metallurgical Silicon Ingot After Transient Directional Solidification
Metallurgical grade silicon was melted and directionally solidified in transient conditions by extracting heat from the base of a cylindrical ingot and inserting heat at the ingot top. A heat-transfer mathematical model was implemented to predict the solidification velocity and temperature gradient using cooling curves measured directly in the silicon melt.
Mat. Res.. Publicado em: 26/06/2017
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3. Desenvolvimento de um processo para obtenção de triclorosilano, a partir de silicio metalurgico nacional, destinado a produção de silicio de grau eletronico
In the present work a research regarding the processes of preparation and purification of Triclorosilane (SiHCL3) using national metallurgical silicon as raw material is described. The Triclorosilane is the main raw material in the preparation of the Eletronic Grade Silicon ...Note: The complete abstract is available with the full electronic digital thesis o
Publicado em: 1980
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4. Development of silicon solar cells and photovoltaic modules in Brazil: analysis of a pilot production
Brazil is a country that receives a large amount of solar radiation. Moreover, high quality quartz mines has been found in its territory and the country has well-established metallurgical grade silicon industries. However, PV technology is not used in large scale and there are no active solar cell fabs. In this context, a pilot plant to develop industrial PV
Materials Research. Publicado em: 31/07/2012
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5. Purificação de silicio grau metalurgico em forno de fusão por feixe de eletrons
ln this work, Electron Beam Melting (EBM) was used to purify the leached Metallurgical-Grade Silicon (MG-Si). This purification technique was begun in the Material Engineering Department in 1994 with fine results. From the leached MG-Si (99,97% in mass) it was obtained purity of 99,999%. From the better results, the goal was to improve the purification leveI
Publicado em: 2000
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6. Desenvolvimento de substrato de Si de baixo custo para célula fotovoltaica, por aspersão térmica a plasma / Desenvolvimento de substrato de Si de baixo custo para célula fotovoltaica, por aspersão térmica a plasma
A alta demanda por lâminas de Si grau solar para a produção de células fotovoltáicas tem promovido o desenvolvimento do que tem sido denominado equivalente à lâminas. Para tanto, uma das alternativas é a deposição de silício grau solar sobre substratos de baixo custo. Nesse trabalho investigou-se a elaboração de tais substratos preparados com Si
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/07/2008