Deposition of mesoporous activated powder alumina on SiC ceramic foam substrates by an in-situ hydrothermal technique

Mesoporous activated powder alumina was synthesised by a surfactant-templating route and the alumina coating layers were deposited successively at 1st time on SiC ceramic foam substrates by an in situ hydrothermal technique. The phase composition, pore structure and surface morphology of activated a...

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Bibliographic Details
Published in:Powder technology 2013-10, Vol.247, p.231-234
Main Authors: Amrousse, Rachid, Choklati, Abdelouahad, Lizoul, Brahim, Bachar, Ahmed, Follet-Houttemane, Claudine, Hori, Keiichi
Format: Article
Language:English
Subjects:
Activated
Activated powder alumina
Aluminum oxide
Applied sciences
Ceramic powders
Ceramics
Chemical engineering
Co-precipitation
Deposition
Exact sciences and technology
Foams
Hydrothermal technique
Miscellaneous
Porosity
SiC foam
Silicon carbide
Sol-gel
Solid-solid systems
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Summary:Mesoporous activated powder alumina was synthesised by a surfactant-templating route and the alumina coating layers were deposited successively at 1st time on SiC ceramic foam substrates by an in situ hydrothermal technique. The phase composition, pore structure and surface morphology of activated alumina layers were investigated by XRD, N2-physisorption, SEM and TEM analysis. The resultant activated alumina layers possess a surface area and a pore volume much higher than that of sol-gel derived-alumina, and the activated alumina layers were deposited successfully on foam substrates after hydrothermal process and heat treatment. [Display omitted] •Activated alumina as coating layer was well deposited into SiC surface.•Hydrothermal method ensures high surface area for deposited alumina.•Resultant activated alumina was much better than sol-gel derivated alumina.
ISSN:0032-5910
1873-328X
DOI:10.1016/j.powtec.2013.06.036