journal article·2019-02

High-temperature synthesis of cast materials based on Nb2AlC MAX phase

Pavel A. Miloserdov, Vladimir A. Gorshkov, Ivan D. Kovalev, Dmitrii Yu. Kovalev

Ceramics International· Volume 45· Issue 2
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Abstract

Abstract Cast materials based on Nb2AlC MAX phase were prepared by metallothermic self-propagating high-temperature synthesis (SHS) under 5 MPa of Ar pressure from green mixtures containing Nb2O5, Al, and C powders, and additive of CaO2 + Al blend as a heat-generating agent. Variation in the amount (α) of the additive markedly affected the process parameters and phase composition of combustion products. An increase in α led to an increase in the combustion temperature. A key factor responsible for successful phase separation in the melt is the lifetime of the liquid phase. A maximum content of Nb2AlC MAX phase in the ingot (67 wt%) was reached under optimized conditions (α = 15%).
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Research context

OpenAlex topics: MXene and MAX Phase Materials · Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (20)

Show source-provided references
1. Barsoum · 2013
2. The MAX phases: unique new carbide and nitride materials10.1511/2001.28.334 ↗
3. Elastic and mechanical properties of the MAX phases10.1146/annurev-matsci-062910-100448 ↗
4. Bridging the gap between metals and ceramics
5. Damage accumulation and hysteretic behavior of MAX phase materials10.1016/j.jmps.2011.03.012 ↗
6. Study on structural, electronic, optical and mechanical properties of MAX phase compounds and applications review article10.11648/j.ajmp.20150402.15 ↗
7. Synthesis and mechanical properties of Nb2AlC and (Ti,Nb)2AlC10.1016/S0925-8388(02)00756-9 ↗
8. Reactive hot pressing and properties of Nb2AlC10.1111/j.1551-2916.2009.03187.x ↗
9. Synthesis and characterization of Nb2AlC thin films10.1016/j.tsf.2008.12.047 ↗
10. SHS on the pathway to industrialization. Chernogolovka, izd
11. The chemistry of self-propagating high-temperature synthesis10.1039/b401358c ↗
12. Self-propagating high-temperature synthesis of advanced materials and coatings10.1080/09506608.2016.1243291 ↗
13. Synthesis of ternary titanium aluminum carbides using self-propagating high-temperature synthesis technique10.1111/j.1151-2916.2001.tb01138.x ↗
14. Synthesis of Ti3AlC2 by SHS and thermodynamic calculation based on first principles10.1007/s12598-013-0174-2 ↗
15. Formation of nanolaminate structures in the Ti–Si–C system: a crystallochemical study10.3103/S1061386214040049 ↗
16. An investigation on formation of Nb2AlC by combustion synthesis of Nb2O5–Al–Al4C3 powder compacts10.1016/j.jallcom.2010.02.113 ↗
17. Strengthening of Ti3AlC2 by incorporation of Al2O310.1016/j.scriptamat.2003.12.002 ↗
18. High-temperature synthesis of a cast material with a maximum content of the MAX phase Cr2AlC10.1134/S0020168517030062 ↗
19. Cast ceramics by metallothermic SHS under elevated argon pressure10.3103/S106138621701006X ↗
20. Thermodynamics of SHS processes: an advanced approach