Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis

The oxidation of Ca-α-SiAlON synthesized by the combustion synthesis (CS) method with different additives was investigated in air atmosphere using thermogravimetric (TG) analysis in a temperature range from 1453 K to 1653 K. The experimental results indicated that oxidation was controlled by mixed c...

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Detalles Bibliográficos
Autores principales: Li, Jinfu, Li, Zhongmin, Wang, Enhui, Wang, Zhanjun, Yin, Xiaowei, Zhang, Zuotai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5458926/
https://www.ncbi.nlm.nih.gov/pubmed/28793657
http://dx.doi.org/10.3390/ma8115394
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author Li, Jinfu
Li, Zhongmin
Wang, Enhui
Wang, Zhanjun
Yin, Xiaowei
Zhang, Zuotai
author_facet Li, Jinfu
Li, Zhongmin
Wang, Enhui
Wang, Zhanjun
Yin, Xiaowei
Zhang, Zuotai
author_sort Li, Jinfu
collection PubMed
description The oxidation of Ca-α-SiAlON synthesized by the combustion synthesis (CS) method with different additives was investigated in air atmosphere using thermogravimetric (TG) analysis in a temperature range from 1453 K to 1653 K. The experimental results indicated that oxidation was controlled by mixed chemical and diffusion steps. The oxidation products by XRD analysis were composed of SiO(2) and CaAl(2)Si(2)O(8) at low oxidation temperature, whereas the SiO(2)-Al(2)O(3)-CaO ternary glassy phase was formed at elevated temperature. The deviation of oxidation resistance from each sample may be due to the morphological difference brought about by different additive additions. This study reveals the effects of additives on the oxidation resistance of synthesized Ca-α-SiAlON powders.
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spelling pubmed-54589262017-07-28 Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis Li, Jinfu Li, Zhongmin Wang, Enhui Wang, Zhanjun Yin, Xiaowei Zhang, Zuotai Materials (Basel) Article The oxidation of Ca-α-SiAlON synthesized by the combustion synthesis (CS) method with different additives was investigated in air atmosphere using thermogravimetric (TG) analysis in a temperature range from 1453 K to 1653 K. The experimental results indicated that oxidation was controlled by mixed chemical and diffusion steps. The oxidation products by XRD analysis were composed of SiO(2) and CaAl(2)Si(2)O(8) at low oxidation temperature, whereas the SiO(2)-Al(2)O(3)-CaO ternary glassy phase was formed at elevated temperature. The deviation of oxidation resistance from each sample may be due to the morphological difference brought about by different additive additions. This study reveals the effects of additives on the oxidation resistance of synthesized Ca-α-SiAlON powders. MDPI 2015-11-11 /pmc/articles/PMC5458926/ /pubmed/28793657 http://dx.doi.org/10.3390/ma8115394 Text en © 2015 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Jinfu
Li, Zhongmin
Wang, Enhui
Wang, Zhanjun
Yin, Xiaowei
Zhang, Zuotai
Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis
title Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis
title_full Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis
title_fullStr Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis
title_full_unstemmed Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis
title_short Oxidation of Ca-α-SiAlON Powders Prepared by Combustion Synthesis
title_sort oxidation of ca-α-sialon powders prepared by combustion synthesis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5458926/
https://www.ncbi.nlm.nih.gov/pubmed/28793657
http://dx.doi.org/10.3390/ma8115394
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AT lizhongmin oxidationofcaasialonpowderspreparedbycombustionsynthesis
AT wangenhui oxidationofcaasialonpowderspreparedbycombustionsynthesis
AT wangzhanjun oxidationofcaasialonpowderspreparedbycombustionsynthesis
AT yinxiaowei oxidationofcaasialonpowderspreparedbycombustionsynthesis
AT zhangzuotai oxidationofcaasialonpowderspreparedbycombustionsynthesis

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