Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon
Само за регистроване кориснике
2023
Аутори
Šaponjić, A.Ilić, S.
Barudzija, T.
Radosavljević-Mihajlović, Ana
Kokunešoski, Maja
Matović, Branko
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this paper, the effects of the addition of silicon nitride seeds on the phase composition, particle size, and shape of silicon nitride powders obtained by carbothermal reduction-nitridation were studied. Environmentally friendly natural raw material, diatomaceous earth, was used as a Si precursor. Three different carbon sources were used: activated carbon, carbonized sucrose, and carbon cryogel as reducing agents in the molar ratio C/SiO2 = 5. To obtain better-quality Si3N4 powder, the commercial α-Si3N4 powder was added into starting mixtures as seeds in four different quantities. The X-ray diffraction, specific surface area, infrared spectroscopy with Fourier transform, and scanning electron microscopy were employed to characterize the obtained powders. Sucrose as a carbon source enables a major reduction of SiO2 and the onset of β-Si3N4 crystallization at a lower temperature (1350 °C) as well as the complete absence of diatomaceous earth relics. It indicates that the carbothermal... reduction-nitridation takes place faster in contrast to the other two carbon sources.
Кључне речи:
Silicon nitride / Seeds / Nitridation / Diatomaceous earth / Carbothermal reductionИзвор:
Journal of the Australian Ceramic Society, 2023Издавач:
- Springer
Финансирање / пројекти:
Институција/група
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Šaponjić, A. AU - Ilić, S. AU - Barudzija, T. AU - Radosavljević-Mihajlović, Ana AU - Kokunešoski, Maja AU - Matović, Branko PY - 2023 UR - https://ritnms.itnms.ac.rs/handle/123456789/652 AB - In this paper, the effects of the addition of silicon nitride seeds on the phase composition, particle size, and shape of silicon nitride powders obtained by carbothermal reduction-nitridation were studied. Environmentally friendly natural raw material, diatomaceous earth, was used as a Si precursor. Three different carbon sources were used: activated carbon, carbonized sucrose, and carbon cryogel as reducing agents in the molar ratio C/SiO2 = 5. To obtain better-quality Si3N4 powder, the commercial α-Si3N4 powder was added into starting mixtures as seeds in four different quantities. The X-ray diffraction, specific surface area, infrared spectroscopy with Fourier transform, and scanning electron microscopy were employed to characterize the obtained powders. Sucrose as a carbon source enables a major reduction of SiO2 and the onset of β-Si3N4 crystallization at a lower temperature (1350 °C) as well as the complete absence of diatomaceous earth relics. It indicates that the carbothermal reduction-nitridation takes place faster in contrast to the other two carbon sources. PB - Springer T2 - Journal of the Australian Ceramic Society T1 - Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon DO - 10.1007/s41779-023-00876-w UR - conv_985 ER -
@article{ author = "Šaponjić, A. and Ilić, S. and Barudzija, T. and Radosavljević-Mihajlović, Ana and Kokunešoski, Maja and Matović, Branko", year = "2023", abstract = "In this paper, the effects of the addition of silicon nitride seeds on the phase composition, particle size, and shape of silicon nitride powders obtained by carbothermal reduction-nitridation were studied. Environmentally friendly natural raw material, diatomaceous earth, was used as a Si precursor. Three different carbon sources were used: activated carbon, carbonized sucrose, and carbon cryogel as reducing agents in the molar ratio C/SiO2 = 5. To obtain better-quality Si3N4 powder, the commercial α-Si3N4 powder was added into starting mixtures as seeds in four different quantities. The X-ray diffraction, specific surface area, infrared spectroscopy with Fourier transform, and scanning electron microscopy were employed to characterize the obtained powders. Sucrose as a carbon source enables a major reduction of SiO2 and the onset of β-Si3N4 crystallization at a lower temperature (1350 °C) as well as the complete absence of diatomaceous earth relics. It indicates that the carbothermal reduction-nitridation takes place faster in contrast to the other two carbon sources.", publisher = "Springer", journal = "Journal of the Australian Ceramic Society", title = "Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon", doi = "10.1007/s41779-023-00876-w", url = "conv_985" }
Šaponjić, A., Ilić, S., Barudzija, T., Radosavljević-Mihajlović, A., Kokunešoski, M.,& Matović, B.. (2023). Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon. in Journal of the Australian Ceramic Society Springer.. https://doi.org/10.1007/s41779-023-00876-w conv_985
Šaponjić A, Ilić S, Barudzija T, Radosavljević-Mihajlović A, Kokunešoski M, Matović B. Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon. in Journal of the Australian Ceramic Society. 2023;. doi:10.1007/s41779-023-00876-w conv_985 .
Šaponjić, A., Ilić, S., Barudzija, T., Radosavljević-Mihajlović, Ana, Kokunešoski, Maja, Matović, Branko, "Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon" in Journal of the Australian Ceramic Society (2023), https://doi.org/10.1007/s41779-023-00876-w ., conv_985 .