Aluminum oxynitride by SHS under high pressure of nitrogen gas
- Authors: Akopdzhanyan T.G.1, Borovinskaya I.P.1, Chemagina E.A.1
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Affiliations:
- Institute of Structural Macrokinetics and Materials Science
- Issue: Vol 26, No 2 (2017)
- Pages: 110-114
- Section: Article
- URL: https://journals.rcsi.science/1061-3862/article/view/195835
- DOI: https://doi.org/10.3103/S1061386217020029
- ID: 195835
Cite item
Abstract
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.
Keywords
About the authors
T. G. Akopdzhanyan
Institute of Structural Macrokinetics and Materials Science
Author for correspondence.
Email: tigj@yandex.ru
Russian Federation, Chernogolovka, Moscow, 142432
I. P. Borovinskaya
Institute of Structural Macrokinetics and Materials Science
Email: tigj@yandex.ru
Russian Federation, Chernogolovka, Moscow, 142432
E. A. Chemagina
Institute of Structural Macrokinetics and Materials Science
Email: tigj@yandex.ru
Russian Federation, Chernogolovka, Moscow, 142432
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