Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/89894
Título: | A computational fluid dynamics based sensitivity analysis of the chemical vapor analysis process to synthesize carbon nanotubes |
Autor(es): | Teixeira, C. Ferreira da Silva, Alexandre Rocha, Luís Alexandre Machado |
Palavras-chave: | Carbon nanotubes synthesis Chemical vapor deposition Computational fluid dynamics Modeling and simulation Nanomaterials |
Data: | 1-Fev-2020 |
Editora: | ASME |
Revista: | Journal of Thermal Science and Engineering Applications |
Resumo(s): | Over the last years, there has been a high interest in carbon nanotubes’ (CNTs) applications due to their unique properties, mainly at mechanical and electrical levels. However, current synthesis processes, such as chemical vapor deposition (CVD), are highly unpredictable and inconsistent, which leads to an exhaustive trial-and-error methodology when extrapolating results. A sensitivity analysis based on computational fluid dynamics (CFD) is performed here to two distinct setups of the CVD process as a way to understand the synthesis process. Setups were computationally designed and simulated for various synthesis scenarios, where only the hydrocarbon flow and the process temperature were changed. Measuring synthesis conditions, such as concentrations and velocity, inside the tube furnace, for these scenarios allows the identification of which compound affects most each condition. Results showed that, when envisioning the process extrapolation, the synthesis conditions can be tuned via the accessed parameters. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/89894 |
DOI: | 10.1115/1.4044424 |
ISSN: | 1948-5085 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito autor |
Aparece nas coleções: | DEI - Artigos em revistas internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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FMANU-TSEA-18-1496.pdf Acesso restrito! | 1,09 MB | Adobe PDF | Ver/Abrir |