from 01.01.2004 to 01.01.2024
Samara, Samara, Russian Federation
The paper describes the study of the synthesis process of the Si3N4-SiAlON composite in the solid-flame combustion mode in the open air. Si3N4 and Al2O3 were chosen as reagents for obtaining the composite. The mass of the components in the samples varied from 3 to 5 g. The experiments showed that all the synthesized composites consist of several phases. The composite obtained from a Si3N4 + Al2O3 briquette weighing 5 g turned out to be the best in terms of phase composition. It consisted of -Si3N4, -Si3N4 and sialons of different composition SiAl8O2N8, Si3Al6O12N2, Si3Al3O3N5. In addition, the microstructure of such a composite was a mixture of fibers and parti-cles similar in size: fibers - 200-250 nm, particles 300-350 nm.
self-propagating high-temperature synthesis, sialon, composite, silicon nitride, aluminum oxide.
1. Yeh C.L., Wu F.S., Chen Y.L. Effects of - and -Si3N4 as precursors on combustion synthesis of (+)-SiAlON composites / Journal of Alloys and Compounds, Vol. 509, 2011. P. 3985-3990. DOI: https://doi.org/10.1016/j.jallcom.2010.12.201; EDN: https://elibrary.ru/OKNEFD
2. Kheirandish A.R., Nekouee Kh.A., Khosroshah R.A., Ehsani N. Self-propagating high tem-perature synthesis of SiAlON // Int. Journal of Refractory Metals and Hard Materials, Vol. 55, 2016. P. 68-79. DOI: https://doi.org/10.1016/j.ijrmhm.2015.11.010
3. Pradeilles N., Record M.C., Granier D., Marin-Ayral R.M. Synthesis of b-SiAlON: A com-bined method using sol-gel and SHS processes / Ceramics International, Vol. 34, 2008. P. 1189-1194. DOI: https://doi.org/10.1016/j.ceramint.2007.02.017; EDN: https://elibrary.ru/KJPCML
4. Liu Guanghua, Chen Kexin, Zhou Heping, Ren Kegang, Li Jiangtao. Formation of -SiAlON micropalings consisting of nanorods during combustion synthesis / Scripta Materialia, Vol. 55, 2006. P. 935-938. DOI: https://doi.org/10.1016/j.scriptamat.2006.07.033; EDN: https://elibrary.ru/KNLTID
5. Valyaeva M.E., Kondratieva L.A. Review of methods for producing sialon / Modern materi-als, equipment and technologies, No. 4 (37), 2021. P. 10-16. EDN: https://elibrary.ru/AXAAXD
6. Ye Zhang, Dongxu Yao, Kaihui Zuo, Yongfeng Xia, Jinwei Yin, Hanqin Liang, Yu-Ping Zeng. The synthesis of single-phase β-Sialon porous ceramics using self-propagating high-temperature processing / Ceramics International, Vol. 48 (3), 2022, P. 4371-4375; DOI: https://doi.org/10.1016/j.ceramint.2021.10.188; EDN: https://elibrary.ru/QKKCWN
7. Valyaeva M. E., Kondratieva L. A. Synthesis of sialon from SHS systems in solid flame com-bustion mode / Transport engineering, No. 3 (15), 2023. P. 4-13. DOI: https://doi.org/10.30987/2782-5957-2023-3-4-13; EDN: https://elibrary.ru/FYDGDY
