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The influence of combustion temperature on the phase and morphological compositions of Si3N4‒Yb2O3 composites obtained by the SHS method


https://doi.org/10.17073/1683-4518-2024-9-44-47

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Abstract

The effect of combustion temperature on the phase composition and morphology of particles of SHS composites of the composition Si3N4‒Yb2O3 was studied. The combustion temperature was controlled using the silicon content in the reaction mixture.  It  was  found that with an increase in the synthesis temperature, the content of α-Si3N4 decreases. Silicon ytterbium oxynitride is formed as a secondary phase. The morphology of the particles of the composition changes with an increase in the combustion temperature from the equiaxed form of α-Si3N4 to columnar crystals of β-Si3N4. Ill. 3. Ref. 7.


About the Authors

I. A. Shibakov
ФГБУН «Институт структурной макрокинетики и проблем материаловедения имени А. Г. Мержанова Российской академии наук»
Russian Federation


V. V. Zakorzhevskii
ФГБУН «Институт структурной макрокинетики и проблем материаловедения имени А. Г. Мержанова Российской академии наук»
Russian Federation


References

1. Мержанов, А. Г. Процессы горения и синтез материалов / А. Г. Мержанов. ― Черноголовка : изд. ИСМАН, 1998. ― 512 с.

2. Borovinskaya, I. P. Combustion synthesis of nitrides for development of ceramic materials of new generation (рages: 1‒48) / I. P. Borovinskaya, V. E. Loryan, V. V. Zakorzhevsky ; in book: Nitride сeramics: сombustion of synthesis, properties and applications by A. A. Gromov and L. N. Chukhlomina. ― Weinheim : Wiley‒VCH Verlag GmbH & Co. KGaA, 2015.

3. Chevykalova, L. A. Ceramic material based on domestic silicon nitride powder prepared by an SHS method / L. A. Chevykalova, I. Y. Kelina, I. L. Mikhal'chik [et al.] // Refract. Ind. Ceram. ― 2015. ― Vol. 55, № 5. ― Р. 403‒408. https://doi.org/10.1007/s11148-015-9734-3.

4. Hyoungjoon, P. Microstructural evolution and mechanical properties of Si3N4 with Yb2O3 as a sintering additive / P. Hyoungjoon, K. Hyoun-Ee, N. Koichi // J. Am. Ceram. Soc. ― 1997. ― Vol. 80, № 3. ― Р. 750‒756. DOI: 10.1111/j.1151-2916.1997.tb02892.x.

5. Toshiyuki, N. High temperature strength of silicon nitride ceramics with ytterbium silicon oxynitride / N. Toshiyuki, M. Mamoru, S. Hisayuki // J. Mater. Res. ― 1997. ― Vol. 12, № 1. ― Р. 203‒209.

6. Mamoru, M. Microstructural development during gas-pressure sintering of α-silicon nitride / M. Mamoru, U. Satoshi // J. Am. Ceram. Soc. ― 1992. ― Vol. 75, № 1. ― Р. 103‒108. DOI: 10.1111/j.1151-2916.1992.tb05449.

7. Андриевский, Р. А. Нитрид кремния и материалы на его основе / Р. А. Андриевский, И. И. Спивак. ― М. : Металлургия, 1984. ― 137 с.


Supplementary files

For citation: Shibakov I.A., Zakorzhevskii V.V. The influence of combustion temperature on the phase and morphological compositions of Si3N4‒Yb2O3 composites obtained by the SHS method. NOVYE OGNEUPORY (NEW REFRACTORIES). 2024;(9):44-47. https://doi.org/10.17073/1683-4518-2024-9-44-47

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