Microstructure development and phase evolution of alumina-mullite nanocomposite
In this work, alumina-mullite composites (5-15 vol.%) were prepared using sol-gel derived alumina composite nanopowders. The results revealed the formation of intragranular and intergranular mullites inside and between the alumina grains, respectively. Accordingly, the intragranular mullite...
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| Format: | Article |
| Language: | English |
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International Institute for the Science of Sintering, Beograd
2013-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2013/0350-820X1303293S.pdf |
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| author | Sedaghat A. Taheri-Nassaj E. Soraru G.D. Ebadzadeh T. |
| author_facet | Sedaghat A. Taheri-Nassaj E. Soraru G.D. Ebadzadeh T. |
| author_sort | Sedaghat A. |
| collection | DOAJ |
| description | In this work, alumina-mullite composites (5-15 vol.%) were prepared using
sol-gel derived alumina composite nanopowders. The results revealed the
formation of intragranular and intergranular mullites inside and between the
alumina grains, respectively. Accordingly, the intragranular mullites
(average grain size, 0.3 μm) were smaller than the intergranular mullites
(average grain size, 0.5 μm). Moreover, the alumina grains (average grain
size, 1.0 μm) are larger than the mullites. Meanwhile, the mullites showed
positive results in the prevention of the alumina grains growth and the
retardation of densification. The relative density of alumina-15 vol.%
mullite that was sintered at 1650°C for 2 h, was obtained as 98.7 %. After
sintering at 1750°C for 2 h, the mullite was decomposed. |
| first_indexed | 2024-12-23T01:59:48Z |
| format | Article |
| id | doaj.art-7741f2857dc74a3d9b00cb9c704c7260 |
| institution | Directory Open Access Journal |
| issn | 0350-820X 1820-7413 |
| language | English |
| last_indexed | 2024-12-23T01:59:48Z |
| publishDate | 2013-01-01 |
| publisher | International Institute for the Science of Sintering, Beograd |
| record_format | Article |
| series | Science of Sintering |
| spelling | doaj.art-7741f2857dc74a3d9b00cb9c704c72602022-12-21T18:04:01ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X1820-74132013-01-0145329330310.2298/SOS1303293S0350-820X1303293SMicrostructure development and phase evolution of alumina-mullite nanocompositeSedaghat A.0Taheri-Nassaj E.1Soraru G.D.2Ebadzadeh T.3Tarbiat Modares University, Department of Materials Science and Engineering, Tehran, IranTarbiat Modares University, Department of Materials Science and Engineering, Tehran, IranUniversity of Trento, Department of Materials Engineering and Industrial Technology, Trento, ItalyMaterials & Energy Research Centre, Tehran, IranIn this work, alumina-mullite composites (5-15 vol.%) were prepared using sol-gel derived alumina composite nanopowders. The results revealed the formation of intragranular and intergranular mullites inside and between the alumina grains, respectively. Accordingly, the intragranular mullites (average grain size, 0.3 μm) were smaller than the intergranular mullites (average grain size, 0.5 μm). Moreover, the alumina grains (average grain size, 1.0 μm) are larger than the mullites. Meanwhile, the mullites showed positive results in the prevention of the alumina grains growth and the retardation of densification. The relative density of alumina-15 vol.% mullite that was sintered at 1650°C for 2 h, was obtained as 98.7 %. After sintering at 1750°C for 2 h, the mullite was decomposed.http://www.doiserbia.nb.rs/img/doi/0350-820X/2013/0350-820X1303293S.pdfphase evolutionmicrostructure developmentaluminamullitenanocomposite |
| spellingShingle | Sedaghat A. Taheri-Nassaj E. Soraru G.D. Ebadzadeh T. Microstructure development and phase evolution of alumina-mullite nanocomposite Science of Sintering phase evolution microstructure development alumina mullite nanocomposite |
| title | Microstructure development and phase evolution of alumina-mullite nanocomposite |
| title_full | Microstructure development and phase evolution of alumina-mullite nanocomposite |
| title_fullStr | Microstructure development and phase evolution of alumina-mullite nanocomposite |
| title_full_unstemmed | Microstructure development and phase evolution of alumina-mullite nanocomposite |
| title_short | Microstructure development and phase evolution of alumina-mullite nanocomposite |
| title_sort | microstructure development and phase evolution of alumina mullite nanocomposite |
| topic | phase evolution microstructure development alumina mullite nanocomposite |
| url | http://www.doiserbia.nb.rs/img/doi/0350-820X/2013/0350-820X1303293S.pdf |
| work_keys_str_mv | AT sedaghata microstructuredevelopmentandphaseevolutionofaluminamullitenanocomposite AT taherinassaje microstructuredevelopmentandphaseevolutionofaluminamullitenanocomposite AT sorarugd microstructuredevelopmentandphaseevolutionofaluminamullitenanocomposite AT ebadzadeht microstructuredevelopmentandphaseevolutionofaluminamullitenanocomposite |