Porous Ceramics from Al2O3 Nanopowders

Key Engineering Materials. Vol.850: Materials Science and Applied Chemistry III: Selected peer-reviewed papers from 60th International Scientific Conference of Riga Technical University (RTU). Section of Materials Science and Applied Chemistry (MSAC 2019). 2020
Ilmārs Zālīte, Līga Orlova, Santa Lagzdiņa, Dzintra Ārija Rašmane

Porous Al2O3 ceramics were sintered by using plasma-chemical synthesized powders with specific surface area values of 30 and 50 m2/g. The sintering was carried out under various conditions: in nitrogen atmosphere, - air or vacuum in the temperature range of 1200 – 1700 °C. The most suitable sintering conditions to obtain porous ceramics are sintering in air in the temperature range of 1200-1500 °C using Al2O3 nanopowder with a specific surface area of 50 m2/g. Samples with open porosity of 35-45% and average pore size range of 110-180 nm were obtained under these conditions.

Keywords
Porous ceramics, Al2O3 nanopowder, sintering, properties
DOI
10.4028/www.scientific.net/KEM.850.273
Hyperlink
https://www.scientific.net/KEM.850.273

Zālīte, I., Grase, L., Lagzdiņa, S., Rašmane, D. Porous Ceramics from Al2O3 Nanopowders. Key Engineering Materials, 2020, Vol. 850, pp.273-278. ISSN 1013-9826. e-ISSN 1662-9795. Available from: doi:10.4028/www.scientific.net/KEM.850.273

Publication language
English (en)