Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/18201
Title: | Cellular MgAl2O4 spinels prepared by reactive sintering of emulsified suspensions |
Author: | Vitorino, N. Freitas, C. Kovalevsky, A.V. Abrantes, J.C.C. Frade, J.R. |
Keywords: | Cellular monoliths MgAl2O4 spinels Reactive firing Emulsified suspensions |
Issue Date: | Feb-2016 |
Publisher: | Elsevier |
Abstract: | Emulsification of mixed precursor powder mixtures (Al2O3+MgCO3) and subsequent reactive firing were, for the first time, combined to prepare single phase cellular MgAl2O4 and corresponding MgxAl3−xO4 spinels with deviations from ideal stoichiometry. Suspensions with 50% v/v solid load were emulsified in melted paraffin, with collagen additions to assist consolidation by gelcasting. Early burnout stages and firing conditions were adjusted to avoid collapse of green bodies on heating and to induce favorable microstructural changes, with emphasis on porosity and percolation. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/18201 |
DOI: | 10.1016/j.matlet.2015.10.169 |
ISSN: | 0167-577X |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Cellular MgAl2O4 spinels prepared by reactive sintering of emulsified suspensions_10.1016j.matlet.2015.10.169.pdf | 1.75 MB | Adobe PDF |
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