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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
30/03/2005 |
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Data da última atualização: |
30/03/2005 |
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Autoria: |
APPOLONI, C. R.; FERNANDES, C. P.; INNOCENTINI, M. D. M.; MACEDO, A. |
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Título: |
X-ray microtomography characterization of ceramic foams porous microstructure. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: INTERNATIONAL MEETING OF APPLIED PHYSICS, 1. out. 2003, Badajoz, Espanha. book of abstracts... Badajoz, 2003. p. 590. |
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Idioma: |
Inglês |
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Conteúdo: |
Knowledge of the porous structure of amorphous material is of fundamental importante in calculating geometrical parameters such as total porosity, pore size distribution and physical parameters related to fluid flow inside void space. Present work deals with the measurement of microstructural parameters ofporous ceramic filters. Microtomographic measurements of samples were performed by employing an X-ray tube. Bremsstrahlung radiation was filtered in transmission mode with a Sn filter at 58.5 and 28.3keV. Beam width was about 80 m at the sample position center. Images were analyzed in two ways. In the fust method, transepts afilie images were analyzed in order to calculate the total porosity by means afilie average particle and media linear attenuation coefficients. In the second method, images were studied using a image analysis software, named Imago, enabling the calculation of total porosity and pore size distribution for three kinds of ceramic loarns, labeled by its number of porous per linear inch (Ppi). |
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Palavras-Chave: |
Cerâmica; Microtomografia; Raios-X. |
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Thesagro: |
Porosidade. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01657naa a2200205 a 4500
001 1028905
005 2005-03-30
008 2003 bl --- 0-- u #d
100 1 $aAPPOLONI, C. R.
245 $aX-ray microtomography characterization of ceramic foams porous microstructure.
260 $c2003
520 $aKnowledge of the porous structure of amorphous material is of fundamental importante in calculating geometrical parameters such as total porosity, pore size distribution and physical parameters related to fluid flow inside void space. Present work deals with the measurement of microstructural parameters ofporous ceramic filters. Microtomographic measurements of samples were performed by employing an X-ray tube. Bremsstrahlung radiation was filtered in transmission mode with a Sn filter at 58.5 and 28.3keV. Beam width was about 80 m at the sample position center. Images were analyzed in two ways. In the fust method, transepts afilie images were analyzed in order to calculate the total porosity by means afilie average particle and media linear attenuation coefficients. In the second method, images were studied using a image analysis software, named Imago, enabling the calculation of total porosity and pore size distribution for three kinds of ceramic loarns, labeled by its number of porous per linear inch (Ppi).
650 $aPorosidade
653 $aCerâmica
653 $aMicrotomografia
653 $aRaios-X
700 1 $aFERNANDES, C. P.
700 1 $aINNOCENTINI, M. D. M.
700 1 $aMACEDO, A.
773 $tIn: INTERNATIONAL MEETING OF APPLIED PHYSICS, 1. out. 2003, Badajoz, Espanha. book of abstracts... Badajoz, 2003. p. 590.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| 1. |  | TOSTO, M. S. L.; ARAUJO, G. G. L. de; OLIVEIRA, R. L.; JESUS, L. S. de; MENEZES, D. R.; VASCONCELUS, M. A. X.; ALVES, M. J. Dietas compostas por palma forrageira "in natura", resíduo de vitivinícola e diferentes níveis de uréia para caprinos. In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 4.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 10.; SIMPÓSIO DE PRODUÇÃO ANIMAL DO VALE DO SÃO FRANCISCO, 1., 2006, Petrolina. Anais... Petrolina: SNPA; Embrapa Semi-Árido, 2006. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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