Abstract
During the synthesis of MAX phases using combustion synthesis (or Self-Propagating High-temperature Synthesis), the main drawback is the presence of binary phases, and especially the simple MX carbide, when X = C. Our experiments were designed in order to check whether the cooling rate of the sample immediately after synthesis might play a key role for obtaining samples with low-level carbide contents. In the best conditions, a TiC content of about 2% only has been observed. A systematic study on the direct effect of the cooling rate on the final composition has then been conducted, and confirms that high cooling rates allow the synthesis of high-purity MAX phases in the Ti-Al-C system.
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Hendaoui, A., Andasmas, M., Amara, A. et al. SHS of high-purity MAX compounds in the Ti-Al-C system. Int. J Self-Propag. High-Temp. Synth. 17, 129–135 (2008). https://doi.org/10.3103/S1061386208020088
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DOI: https://doi.org/10.3103/S1061386208020088