Reaction synthesis of the Ti2AlN MAX-phase

The Ti 2 AlN MAX-phase is synthesized by reaction sintering from Ti–AlN powder mixtures. The optimal synthesis mode of the compound containing less than 1% of the TiN impurity phase is established. It includes isothermal annealing at 1300°C for 2 h in argon at a pressure of 3 atm. The influence of t...

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Bibliographic Details
Published in:Russian journal of non-ferrous metals 2017-05, Vol.58 (3), p.303-307
Main Authors: Kovalev, D. Yu, Luginina, M. A., Sytschev, A. E.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
Metallic Materials
Self-Propagating High-Temperature Synthesis
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Summary:The Ti 2 AlN MAX-phase is synthesized by reaction sintering from Ti–AlN powder mixtures. The optimal synthesis mode of the compound containing less than 1% of the TiN impurity phase is established. It includes isothermal annealing at 1300°C for 2 h in argon at a pressure of 3 atm. The influence of the preliminary mechanical activation of the powder mixture and the reaction synthesis medium on the yield of the Ti 2 AlN phase are investigated. It is shown that the activation leads to an increase in the content of the secondary TiN phase. It is revealed that the vacuum synthesis also does not make it possible to form the singlephase Ti 2 AlN material.
ISSN:1067-8212
1934-970X
DOI:10.3103/S1067821217030087