Combustion Synthesis of Magnesium-Aluminum Oxynitride MgAlON with Tunable Composition

Akopdzhanyan, Tigran; Abzalov, Danil; Moskovskikh, Dmitry; Abedi, Mohammad; Romanovski, Valentin

doi:10.3390/ma16103648

Cited by 4 publications

(5 citation statements)

References 34 publications

(59 reference statements)

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“…As a first attempt, this study aimed to investigate the effects TiC, Si, and Al on the formation of Ti 3 SiC 2 by solid-phase combustion synthesis in the SHS mode. When compared with other processing methods, the SHS technique takes advantage of highly exothermic reactions to produce MAX phases and has benefits of energy effectiveness, time-saving, simplicity, low cost, scalability, and high-purity products [ 37 , 38 , 39 ]. In this study, starting mixtures comprising different amounts of TiC were prepared with an exact Ti:Si:C = 3:1:2 stoichiometry and Si-rich and Al-added compositions.…”

Section: Introductionmentioning

confidence: 99%

Effects of TiC, Si, and Al on Combustion Synthesis of Ti3SiC2/TiC/Ti5Si3 Composites

Yeh,

Lai

2023

Materials

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The fabrication of Ti3SiC2 from TiC-containing reactant compacts was investigated by combustion synthesis in the mode of self-propagating high-temperature synthesis (SHS). The initial sample composition was formulated based on (3 − x)Ti + ySi + (2 − x)C + xTiC + zAl, with stoichiometric parameters of x from 0 to 0.7, y = 1.0 and 1.2, and z = 0 and 0.1. For all samples studied, combustion was sufficiently exothermic to sustain the reaction in the SHS manner. Due to the dilution effect of TiC, combustion wave velocity and reaction temperature substantially decreased with TiC content. When compared with the TiC-free sample, the TiC-containing sample facilitated the formation of Ti3SiC2 and the TiC content of x = 0.5 produced the highest yield. Excess Si (y = 1.2) to compensate for the evaporation loss of Si during combustion and the addition of Al (z = 0.1) to promote the phase conversion were effective in improving the evolution of Ti3SiC2. All final products were composed of Ti3SiC2, TiC, and Ti5Si3. For the TiC-containing samples of x = 0.5, the weight fraction of Ti3SiC2 increased from 67 wt.% in the sample without extra Si and Al to 72 wt.% in the Si-rich sample of y = 1.2 and further up to 85 wt.% in the Si-rich/Al-added sample of y = 1.2 and z = 0.1. As-synthesized Ti3SiC2 grains were in a thin plate-like shape with a thickness of 0.5–1.0 μm and length of about 10 μm. Ti3SiC2 platelets were closely stacked into a layered structure.

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Section: Introductionmentioning

confidence: 99%

Effects of TiC, Si, and Al on Combustion Synthesis of Ti3SiC2/TiC/Ti5Si3 Composites

Yeh,

Lai

2023

Materials

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“…The SI consists of 16 papers (published between 2022 and 2023): a review article [ 1 ], a viewpoint paper [ 2 ], a communication [ 3 ], and thirteen research articles [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. The papers reflect the current trends in the field: the search for new compositions (not investigated previously) of materials and the development of new processing approaches enabling better control and flexibility of the materials’ microstructures, shapes, and architectures.…”

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confidence: 99%

“…The research papers report recent findings in metallic [ 4 , 5 , 6 , 7 , 8 , 9 ], ceramic [ 10 , 11 , 12 ], polymer [ 3 ], and composite materials [ 3 , 13 , 14 , 15 , 16 ].…”

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confidence: 99%

“…Interesting ceramic systems in terms of composition have been investigated in [ 10 , 11 , 12 ]. Bannykh et al [ 10 ] conducted a systematic study of the products of interaction between the W 2 B and iridium powders.…”

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“…Chorney et al [ 11 ] reported the sintering behavior of Nb 2 O 5 and Ta 2 O 5 mixtures and the formation of a ternary oxide. Akopdzhanyan et al [ 12 ] elaborated the synthesis of MgAlON powders via combustion reactions.…”

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confidence: 99%

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