Permeability of carbon refractory materials used in a blast furnace hearth
| Autor: | Janusz Tomala, Krzysztof Szyszkiewicz-Warzecha, Rafał Smulski, Stanisław Nagy, Robert Filipek, Jakub Stec |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Alternative methods Blast furnace Materials science Annealing (metallurgy) Process Chemistry and Technology chemistry.chemical_element 02 engineering and technology Microporous material 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Permeability (earth sciences) Infiltration (hydrology) chemistry 0103 physical sciences Materials Chemistry Ceramics and Composites Permeability measurements Composite material 0210 nano-technology Carbon |
| Zdroj: | Ceramics International. 47:16538-16546 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2021.02.223 |
| Popis: | Permeability of experimental and standard micropore carbon materials, before and after the heat treatment at 1550 °C, was investigated using gas permeability measurements (GP) and mercury intrusion porosimetry (MIP). Permeability of both materials increased after the annealing. Experimental micropore carbon material was less permeable than standard one, both before and after the heat treatment. Measured gas permeabilities were compared with permeabilities determined based on MIP measurements using two different models: Hagen−Poiseuille and Carman−Kozeny equation. Using the inverse problem approach, for the first time Carman−Kozeny constant was determined for micropore carbon materials. Carman−Kozeny model gave more accurate results (i.e. close to gas permeability measurements) than Hagen−Poiseuille model. Performed investigations showed that mercury intrusion porosimetry might be alternative method to investigate infiltration resistance of low permeable materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect