Al2O3-Based Porous Refractory Ceramics Obtained by Chemical Foaming

Amethod of synthesis of corundum and mullite-corundum permeable refractories (with the addition of aluminum-magnesium spinel) with a total porosity of up to 76 % and average pore size of 12 – 20 μm based on the technology of chemical foaming of ceramic slip is proposed. To implement this method, a c...

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Bibliographic Details
Published in:Refractories and industrial ceramics 2020, Vol.60 (5), p.482-485
Main Authors: Kozlov, V. V., Shevchik, A. P., Suvorov, S. A., Arbuzova, N. V.
Format: Article
Language:English
Subjects:
Aluminous refractories
Aluminum oxide
Ceramics
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry and Materials Science
Composites
Corundum
Foaming agents
Glass
Magnesium
Materials Science
Mullite
Natural Materials
Pore size
Porosity
Slurries
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Summary:Amethod of synthesis of corundum and mullite-corundum permeable refractories (with the addition of aluminum-magnesium spinel) with a total porosity of up to 76 % and average pore size of 12 – 20 μm based on the technology of chemical foaming of ceramic slip is proposed. To implement this method, a complex organic foaming agent and stabilizer of the foamed ceramic slurry is proposed, which burns out during the firing process and does not pollute the refractory material.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-020-00400-8