Ceramics-Silikáty 33, (3) 193 - 202 (1989) |
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THE SINTERING OF BOEMITE GEL
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Pach Ladislav, Svetlík Štefan, Kozánková Jana
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Department of Silicate Chemical Technology, Faculty of Chemical Technology,
Slovak Technical University, Radlinského 9, 812 37 Bratislava
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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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