Preparation of Ti2AlN by reactive sintering
- Авторы: Luginina M.A.1, Kovalev D.Y.1, Sytschev A.E.1
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Учреждения:
- Institute of Structural Macrokinetics and Materials Science
- Выпуск: Том 25, № 1 (2016)
- Страницы: 35-38
- Раздел: Article
- URL: https://journals.rcsi.science/1061-3862/article/view/195581
- DOI: https://doi.org/10.3103/S1061386216010088
- ID: 195581
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Аннотация
Reactive sintering of 2Ti–AlN mixtures at T = 1300°C for τ = 2 h in an argon atmosphere was used to prepare Ti2AlN containing below 1 wt % TiN and exhibiting a laminate structure typical of MAX compounds. At lower values of T and τ, the TiN content of products increased. Sintering in vacuum yielded a material containing up to 20 wt % TiN. Contrary to our expectations, mechanical activation of green blends was found to increase the TiN content of sintered materials, due to intensification of thermal dissociation of AlN and elimination of Al, which shifts equilibrium toward two-phase Ti2AlN–TiN composite. Relative density of green compacts was found to produce little or no influence on phase composition of products.
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Об авторах
M. Luginina
Institute of Structural Macrokinetics and Materials Science
Автор, ответственный за переписку.
Email: m.luginina@gmail.com
Россия, Moscow, 142432
D. Kovalev
Institute of Structural Macrokinetics and Materials Science
Email: m.luginina@gmail.com
Россия, Moscow, 142432
A. Sytschev
Institute of Structural Macrokinetics and Materials Science
Email: m.luginina@gmail.com
Россия, Moscow, 142432
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