| Issue |
MATEC Web Conf.
Volume 72, 2016
Heat and Mass Transfer in the System of Thermal Modes of Energy – Technical and Technological Equipment (HMTTSC-2016)
|
|
|---|---|---|
| Article Number | 01012 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/matecconf/20167201012 | |
| Published online | 09 August 2016 | |
The Influence of Ageing Process on the Barium Aluminate Phase Composition
National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
* Corresponding author: Upenikova@yandex.ru
Barium aluminates were formed by the continuous precipitation method at different values of pH. The influence of ageing process and precipitation pH on the phase composition of the precipitate after firing was found. It was showed that there is growth of the 3BaOAl2O3 concentration after ageing of precipitate during 7 days. Presumably, this process is associated with a decrease in the number of crystals, increasing their size in the ageing process of precipitate and chemical processes that occur during ageing: hydrolysis, hydration, dehydration.
© The Authors, published by EDP Sciences, 2016
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