ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 33, (3) 193 - 202 (1989)

Pach Ladislav, Svetlík Štefan, Kozánková Jana
Department of Silicate Chemical Technology, Faculty of Chemical Technology, Slovak Technical University, Radlinského 9, 812 37 Bratislava

The sintering of the compact gel prepared by peptization of boemite begins at 920 °C and involves conversion of θ-Al₂O₃ to α-Al₂O₃. The bulk density of gels sintered at temperatures up to 1350 °C decreases linearly with the degree of the θ-Al₂O₃ to α-Al₂O₃ conversion. The arising α-Al₂O₃ interferes with the sintering of the system over the temperature range studied (up to 1350 °C).

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