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Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents

In this work, a novel ceramic precursor containing boron, silicon, and nitrides (named SiBCN) was synthesized from liquid ceramic precursors. Additionally, its pyrolysis, microstructure, and chemical composition were studied at 1600 °C. The results showed that the samples with different boron conten...

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Autores principales: Hong, Yiqiang, Qu, Guoxin, Du, Youpei, Yuan, Tingting, Hao, Shuangshuang, Yang, Wei, Dai, Zhen, Ma, Qingsong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739848/
https://www.ncbi.nlm.nih.gov/pubmed/36499887
http://dx.doi.org/10.3390/ma15238390
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author Hong, Yiqiang
Qu, Guoxin
Du, Youpei
Yuan, Tingting
Hao, Shuangshuang
Yang, Wei
Dai, Zhen
Ma, Qingsong
author_facet Hong, Yiqiang
Qu, Guoxin
Du, Youpei
Yuan, Tingting
Hao, Shuangshuang
Yang, Wei
Dai, Zhen
Ma, Qingsong
author_sort Hong, Yiqiang
collection PubMed
description In this work, a novel ceramic precursor containing boron, silicon, and nitrides (named SiBCN) was synthesized from liquid ceramic precursors. Additionally, its pyrolysis, microstructure, and chemical composition were studied at 1600 °C. The results showed that the samples with different boron contents had similar structural composition, and both of the two precursors had stable amorphous SiBN structures at 1400 °C, which were mainly composed of B-N and Si-N and endowed them with excellent thermo-oxidative stability. With the progress of the heating process, the boron contents increased and the structures became more amorphous, significantly improving the thermal stability of the samples in high-temperature environments. However, during the moisture treatment, the introduction of more boron led to worse moisture stability.
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spelling pubmed-97398482022-12-11 Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents Hong, Yiqiang Qu, Guoxin Du, Youpei Yuan, Tingting Hao, Shuangshuang Yang, Wei Dai, Zhen Ma, Qingsong Materials (Basel) Article In this work, a novel ceramic precursor containing boron, silicon, and nitrides (named SiBCN) was synthesized from liquid ceramic precursors. Additionally, its pyrolysis, microstructure, and chemical composition were studied at 1600 °C. The results showed that the samples with different boron contents had similar structural composition, and both of the two precursors had stable amorphous SiBN structures at 1400 °C, which were mainly composed of B-N and Si-N and endowed them with excellent thermo-oxidative stability. With the progress of the heating process, the boron contents increased and the structures became more amorphous, significantly improving the thermal stability of the samples in high-temperature environments. However, during the moisture treatment, the introduction of more boron led to worse moisture stability. MDPI 2022-11-25 /pmc/articles/PMC9739848/ /pubmed/36499887 http://dx.doi.org/10.3390/ma15238390 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hong, Yiqiang
Qu, Guoxin
Du, Youpei
Yuan, Tingting
Hao, Shuangshuang
Yang, Wei
Dai, Zhen
Ma, Qingsong
Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents
title Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents
title_full Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents
title_fullStr Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents
title_full_unstemmed Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents
title_short Experimental Investigations into the Pyrolysis Mechanism and Composition of Ceramic Precursors Containing Boron and Nitrides with Different Boron Contents
title_sort experimental investigations into the pyrolysis mechanism and composition of ceramic precursors containing boron and nitrides with different boron contents
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739848/
https://www.ncbi.nlm.nih.gov/pubmed/36499887
http://dx.doi.org/10.3390/ma15238390
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