Paper
6 November 2023 Measurement and analysis of Si3N4 particles by infrared spectrum
Xiaoli Wang, Yanan Li, Sai Wei, Xinghua Li, Han Yu
Author Affiliations +
Proceedings Volume 12921, Third International Computing Imaging Conference (CITA 2023); 129211H (2023) https://doi.org/10.1117/12.2688359
Event: Third International Computing Imaging Conference (CITA 2023), 2023, Sydney, Australia
Abstract
In this paper, the principle of Attenuated Total Reflection (ATR) is used to test and study the silicon nitride particle samples, and the influence of particle size, shape and crystal phase on its infrared spectral performance is emphatically analyzed. It is found that the larger the particle size of Si3N4 is, the more its extinction peak moves to the long wave. The smaller the particle size is, the lower the extreme value of infrared transmission in the characteristic spectrum segment is. For Si3N4 particles of the same scale, spherical like particles can obtain lower infrared transmittance, while cylindrical like ones show a wider range of infrared absorption bands. Under the same shape and similar scale, α phase Si3N4 particles have better infrared absorption than β phase.
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Xiaoli Wang, Yanan Li, Sai Wei, Xinghua Li, and Han Yu "Measurement and analysis of Si3N4 particles by infrared spectrum", Proc. SPIE 12921, Third International Computing Imaging Conference (CITA 2023), 129211H (6 November 2023); https://doi.org/10.1117/12.2688359
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KEYWORDS
Particles

Infrared radiation

Light absorption

Crystals

FT-IR spectroscopy

Reflection

Scanning electron microscopy

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