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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Warner, Terence Edwin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2020On the synthesis and structure of the copper-molybdenum oxide bronzes
- 2019Self-Propagating High-Temperature Synthesis of Titanium Carbidecitations
- 2016The effect of trace amounts of copper on the microstructure, stability and oxidation of macroporous silicon carbidecitations
- 2016The effect of trace amounts of copper on the microstructure, stability and oxidation of macroporous silicon carbidecitations
- 2016The role of aluminium as an additive element in the synthesis of porous 4H-silicon carbidecitations
- 2016The role of aluminium as an additive element in the synthesis of porous 4H-silicon carbidecitations
- 2015The role of Aluminium in the synthesis of Mesoporous 4H Silicon Carbide
- 2015The role of Aluminium in the synthesis of Mesoporous 4H Silicon Carbide
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article
The effect of trace amounts of copper on the microstructure, stability and oxidation of macroporous silicon carbide
Abstract
<p>Trace amounts of copper have advantageous effects when creating macroporous silicon carbide monoliths to be used for combined diesel particle filter and catalyst support systems. These structures were produced from a slurry of silicon, graphite, aluminium and copper. Mixed with water, extruded and dried, the resulting bodies were pyrolyzed, sintered, and then partially oxidized, to yield a mechanically stable porous 4H-SiC microstructure with an average pore diameter of 20 μm and average accessible porosity of 57%. The Cu alloys with the Si and Al to create the sintered body via a liquid phase, and prevents the build-up of undesirable Al-containing ternary carbide crystals in the microstructure. The Cu promotes oxidation of SiC to form a 80 nm SiO<sub>2</sub> layer that serves as a good catalyst support. The accelerated oxidation can be intercepted by dissolving the Cu component from the monoliths with an acid solution.</p>