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She, J.H. and Ohji, T. and Mechnich, Peter and Schmücker, Martin and Schneider, Hartmut (2002) Mullitization and densification of Y2O3-doped reaction-bonded mullite ceramics with different compositions. Materials Chemistry and Physics, 76 (1), pp. 88-91. doi: 10.1016/S0254-0584(01)00510-7.
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Abstract
Mullite ceramics were fabricated by a reaction-bonding technique from the powder mixtures of Al2O3 and Si with an Y2O3 addition. The effects of the initial powder composition on the mullitization and densification behaviors were investigated. It has been shown that mullitization and densification can be simultaneously enhanced by a low-viscosity yttrious silicate glass. After a 2 h heating at 1400 °C, all the specimens exhibited a dense microstructure. Moreover, mullite grains were observed to have an elongated morphology, while the yttrious silicate glass was found to crystallize into Y2Si2O7 at the later stages of mullite growth.
| Item URL in elib: | https://elib.dlr.de/51031/ | ||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||
| Title: | Mullitization and densification of Y2O3-doped reaction-bonded mullite ceramics with different compositions | ||||||||||||||||||||||||
| Authors: |
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| Date: | 2002 | ||||||||||||||||||||||||
| Journal or Publication Title: | Materials Chemistry and Physics | ||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||
| Volume: | 76 | ||||||||||||||||||||||||
| DOI: | 10.1016/S0254-0584(01)00510-7 | ||||||||||||||||||||||||
| Page Range: | pp. 88-91 | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | Reaction bonding; Densification; Mullite | ||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||
| HGF - Program Themes: | Propulsion Systems (old) | ||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||
| DLR - Program: | L ER - Engine Research | ||||||||||||||||||||||||
| DLR - Research theme (Project): | L - Combustion Chamber Technologies (old) | ||||||||||||||||||||||||
| Location: | Köln-Porz | ||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Materials Research > Structural and Functional Ceramics | ||||||||||||||||||||||||
| Deposited By: | Mechnich, Dr.rer.nat. Peter | ||||||||||||||||||||||||
| Deposited On: | 28 Aug 2007 | ||||||||||||||||||||||||
| Last Modified: | 27 Apr 2009 14:17 |
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