Chemically and thermally conjugate synthesis of silicon nitride based compositions using ferrosilicon

Чухломина, Л. Н.

doi:10.1007/s10717-009-9185-8

Cited by 6 publications

(3 citation statements)

References 10 publications

(7 reference statements)

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“…In particular, we studied the combustion of Al/Al 2 O 3 /MgO mixtures in a nitrogen atmosphere (5–60 MPa) and optimized the synthesis conditions to obtain a single-phase fine MgAlON powder. Due to the insufficient exothermicity of the reactive mixture, chemical activation [ 23 , 24 , 25 , 26 , 27 , 28 , 29 ] was used. It was first proposed by A.G. Merzhanov [ 23 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…It was first proposed by A.G. Merzhanov [ 23 , 25 ]. Additionally, thermally coupled reactions yet chemically separated combustion processes (“chemical oven”) could be used [ 28 , 29 ]. To chemically activate the combustion process and further increase the reaction exothermicity, we added extra Al and Mg(ClO 4 ) 2 into the stoichiometric Al/Al 2 O 3 mixture.…”

Section: Introductionmentioning

confidence: 99%

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Combustion Synthesis of Magnesium-Aluminum Oxynitride MgAlON with Tunable Composition

Akopdzhanyan,

Abzalov,

Moskovskikh

et al. 2023

Materials

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Magnesium-aluminum oxynitride MgAlON has garnered significant attention in recent years due to its unique properties and potential applications. Herein, we report a systematic study on the synthesis of MgAlON with tunable composition by employing the combustion method. The Al/Al2O3/MgO mixture was combusted in nitrogen gas, and the effects of Al nitriding and oxidation by Mg(ClO4)2 on the exothermicity of the mixture, combustion kinetics, and phase composition of combustion products were investigated. Our results demonstrate that the MgAlON lattice parameter can be controlled by varying the AlON/MgAl2O4 ratio in the mixture, which corresponds to the MgO content in the combustion products. This work provides a new pathway for tailoring the properties of MgAlON, which may have significant implications in various technological applications. In particular, we reveal the dependence of the MgAlON lattice parameter on the AlON/MgAl2O4 ratio. The limitation of the combustion temperature by 1650 °C resulted in obtaining submicron powders with a specific surface area of about 3.8 m/g2.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Combustion Synthesis of Magnesium-Aluminum Oxynitride MgAlON with Tunable Composition

Akopdzhanyan,

Abzalov,

Moskovskikh

et al. 2023

Materials

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“…To tackle this problem, a novel refractory material, ferro-silicon nitride (Fe-Si 3 N 4 ) has been developed and has successfully replaced the relatively expensive Si 3 N 4 [5,6]. Using the ferro-silicon alloy FeSi75 as the raw material, Fe-Si 3 N 4 powder can be synthesized by direct nitridation [7,8,9] or self-propagating high-temperature synthesis [10,11,12,13] under nitrogen atmosphere. Owing to the catalytic effect of Fe, a lower nitridation temperature and higher reaction rate can be achieved [7,14,15].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Si3N4-Fe3Si Composites Prepared by Gas-Pressure Sintering

Guan

Cheng

2018

Materials

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Si3N4-Fe3Si composites were prepared using Fe-Si3N4 as the source of Fe3Si by gas-pressure sintering. By adding different amounts of Fe-Si3N4 into the starting powders, Si3N4-Fe3Si composites with various Fe3Si phase contents were obtained. The microstructure and mechanical properties of the composites were investigated. With the increase of Fe-Si3N4 contents, the content and particle size of Fe3Si both increased. When more than 60 wt. % Fe-Si3N4 were added, the abnormal growth of Fe3Si particles occurred and oversized Fe3Si particles appeared, leading to non-uniform microstructures and worse mechanical properties of the composites. It has been found that Fe3Si particles could toughen the composites through particle pull-out, interface debonding, crack deflection, and particle bridging. Uniform microstructure and improved mechanical properties (flexural strength of 354 MPa and fracture toughness of 8.4 MPa·m1/2) can be achieved for FSN40.

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Selective oxidation of alcohols over Ag-containing Si3N4 catalysts

et al. 2013

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Chemically and thermally conjugate synthesis of silicon nitride based compositions using ferrosilicon

Cited by 6 publications

References 10 publications

Combustion Synthesis of Magnesium-Aluminum Oxynitride MgAlON with Tunable Composition

Combustion Synthesis of Magnesium-Aluminum Oxynitride MgAlON with Tunable Composition

Microstructure and Mechanical Properties of Si3N4-Fe3Si Composites Prepared by Gas-Pressure Sintering

Selective oxidation of alcohols over Ag-containing Si3N4 catalysts

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