Aluminum oxynitride by SHS under high pressure of nitrogen gas
- Autores: Akopdzhanyan T.G.1, Borovinskaya I.P.1, Chemagina E.A.1
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Afiliações:
- Institute of Structural Macrokinetics and Materials Science
- Edição: Volume 26, Nº 2 (2017)
- Páginas: 110-114
- Seção: Article
- URL: https://journals.rcsi.science/1061-3862/article/view/195835
- DOI: https://doi.org/10.3103/S1061386217020029
- ID: 195835
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Resumo
Aluminum oxynitride (γ-AlON) powders were prepared from low-caloric Al–Al2O3 mixtures by SHS under high pressure of nitrogen gas in the presence of heat-generating agent, Mg(ClO4)2, as a booster. The preparation procedure was characterized and optimized with respect to Al/Al2O3 ratio, amount of heatgenerating additive, and nitrogen gas pressure. The morphology of synthesized γ-AlON powders was found to depend on Al powder brand. Compared to γ-AlON powders obtained in chemical furnace, we managed to prepare less sintered arenaceous cakes that could be easily disintegrated into target γ-AlON powder. SHSproduced powders may find their application in production of optical ceramics.
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Sobre autores
T. Akopdzhanyan
Institute of Structural Macrokinetics and Materials Science
Autor responsável pela correspondência
Email: tigj@yandex.ru
Rússia, Chernogolovka, Moscow, 142432
I. Borovinskaya
Institute of Structural Macrokinetics and Materials Science
Email: tigj@yandex.ru
Rússia, Chernogolovka, Moscow, 142432
E. Chemagina
Institute of Structural Macrokinetics and Materials Science
Email: tigj@yandex.ru
Rússia, Chernogolovka, Moscow, 142432
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