INTENSIFICATION OF THE SINTERING PROCESS OF CERAMIC MATERIALS BASED ON THE BaO – Al2O3 – SiO 2 SYSTEM
| Autor: | Georgiy Lisachuk, Ruslan Kryvobok, Valentyna Voloshchuk |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Bulletin of the National Technical University "KhPI". Series: Innovation researches in students’ scientific work. :3-8 |
| ISSN: | 2663-8738 2220-4784 |
| Popis: | The article examines the effect of additives on the intensification of the sintering process of ceramic materials based on the BaO – Al2O3 – SiO2 system. Taking into account different mechanisms of interaction of additives with the main matrix, modifiers – MgO, Cr2O3, ZrSiO4, TiO2 and mineralizers – CaCO3, B2O3, MoO3, SnO2 : Li2O were selected for research. On the basis of the conducted complex of studies, it was established that the most promising intensifier for the celsian sintering process is the eutectic additive SnO2 : Li2O in the amount of 1 wt.% with the following characteristics: water absorption – 5.1%, porosity – 13.4%, apparent density – 2.62 g/cm3. The results of the X-ray phase analysis show that the celsian synthesis reaction is complete at a synthesis temperature of 1200 °С, which is a confirmation of a decrease in the synthesis temperature of the phase by 100 °С. The obtained celsian ceramics meet the requirements for radio-transparent materials and can be used for the manufacture of individual parts in the aerospace industry. |
| Databáze: | OpenAIRE |
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