Banana Aqueous Extract as a Potential Addition to Clay Ceramics
| Autor: | Afonso Rangel Garcez de Azevedo, Mariane Costalonga de Aguiar, Sergio Neves Monteiro, Jonas Alexandre, Flaviane Helena Guedes, Lara Pessin Rodrigues |
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| Rok vydání: | 2014 |
| Předmět: |
Aqueous extract
Materials science Espirito santo Mechanical Engineering Potassium Metallurgy Sintering Mineralogy chemistry.chemical_element Banana Plant Condensed Matter Physics chemistry Mechanics of Materials visual_art visual_art.visual_art_medium General Materials Science Ceramic Linear shrinkage |
| Zdroj: | Materials Science Forum. :246-250 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.798-799.246 |
| Popis: | Clays mined in the state of Espirito Santo, Brazil, are basically kaolinitic with refractory behavior. Sintering of these clays for the fabrication of red ceramic products such as bricks, tiles and structural blocks usually requires addition of fluxing agents to consolidate the ceramic structure. The banana plant has potassium as one of its major nutrients, which exists in a relatively higher amount associated with the plant lignocellulosic constitution. Since potassium compounds are also fluxing agents for clay ceramics, the present work evaluates the effect of an aqueous extract obtained from the banana plant, for plastic behavior, into a clayey mixture before firing at conventional temperatures of 700 and 900°C. The results of this banana aqueous extract addition revealed that, within standard deviations of the evaluated properties, there was no apparent improvement but only a slightly tendency of undesirable increase in the ceramic linear shrinkage at 900°C firing temperature. |
| Databáze: | OpenAIRE |
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