Abstract
New material gels obtained by reaction of the aluminum sec-butoxide with propan-1,2-diol at room temperature without using a catalyst or adding water, have been pyrolyzed at different temperatures under argon and in air. The obtained products have been characterised by various methods (X-ray, IR and Raman spectroscopies, SEM and density measurements) to determine their structures. Corundum is formed at 1450°C when the material is heat-treated under argon, but this phase is obtained rapidly at temperatures above 1000°C for the xerogel pyrolysed in the air.
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Touati, F., Gharbi, N. & Colomban, P. Structural evolution in polyolysed hybrid organic-inorganic alumina gels. Journal of Materials Science 35, 1565–1570 (2000). https://doi.org/10.1023/A:1004774122812
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DOI: https://doi.org/10.1023/A:1004774122812