Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T

C-axis textured α-SiC ceramics were prepared by gel-casting in a strong magnetic field of 6 T and subsequent sintering at 1950 °C for 2 h. The effects of sintering aids on the microstructure and properties of textured SiC ceramics were discussed. Results showed that highly textured α-SiC green bodie...

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Main Authors: Zhigang Yang, Ziqiang Yin, Zhijia Zhao, Jianbo Yu, Zhongming Ren, Gang Yu, Guanglei Zhang
Format: Article
Language:English
Published: Taylor & Francis Group 2021-01-01
Series:Journal of Asian Ceramic Societies
Subjects:
Online Access:http://dx.doi.org/10.1080/21870764.2020.1848035
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author Zhigang Yang
Ziqiang Yin
Zhijia Zhao
Jianbo Yu
Zhongming Ren
Gang Yu
Guanglei Zhang
author_facet Zhigang Yang
Ziqiang Yin
Zhijia Zhao
Jianbo Yu
Zhongming Ren
Gang Yu
Guanglei Zhang
author_sort Zhigang Yang
collection DOAJ
description C-axis textured α-SiC ceramics were prepared by gel-casting in a strong magnetic field of 6 T and subsequent sintering at 1950 °C for 2 h. The effects of sintering aids on the microstructure and properties of textured SiC ceramics were discussed. Results showed that highly textured α-SiC green bodies were obtained by gel-casting in a strong magnetic field of 6 T. The sintering process slightly suppressed the texture development of α-SiC ceramic. The degree of texture in the α-SiC green bodies and sintered bodies both showed a decreasing trend with the increase of sintering aids content. And the increase of the sintering aids content promoted the densification and improved the bending strength of α-SiC ceramics. Besides, the bending strength of textured SiC ceramics showed an anisotropy based on the grain orientation.
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spelling doaj.art-e24703bd755449829e6a27b9003b878c2022-12-21T22:07:18ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642021-01-0191859510.1080/21870764.2020.18480351848035Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 TZhigang Yang0Ziqiang Yin1Zhijia Zhao2Jianbo Yu3Zhongming Ren4Gang Yu5Guanglei Zhang6Shijiazhuang Tiedao UniversityShijiazhuang Tiedao UniversityShijiazhuang Tiedao UniversityShanghai UniversityShanghai UniversityShijiazhuang Tiedao UniversityShijiazhuang Tiedao UniversityC-axis textured α-SiC ceramics were prepared by gel-casting in a strong magnetic field of 6 T and subsequent sintering at 1950 °C for 2 h. The effects of sintering aids on the microstructure and properties of textured SiC ceramics were discussed. Results showed that highly textured α-SiC green bodies were obtained by gel-casting in a strong magnetic field of 6 T. The sintering process slightly suppressed the texture development of α-SiC ceramic. The degree of texture in the α-SiC green bodies and sintered bodies both showed a decreasing trend with the increase of sintering aids content. And the increase of the sintering aids content promoted the densification and improved the bending strength of α-SiC ceramics. Besides, the bending strength of textured SiC ceramics showed an anisotropy based on the grain orientation.http://dx.doi.org/10.1080/21870764.2020.1848035ceramicsgel-castinghigh magnetic fieldssinteringx-ray diffraction
spellingShingle Zhigang Yang
Ziqiang Yin
Zhijia Zhao
Jianbo Yu
Zhongming Ren
Gang Yu
Guanglei Zhang
Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T
Journal of Asian Ceramic Societies
ceramics
gel-casting
high magnetic fields
sintering
x-ray diffraction
title Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T
title_full Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T
title_fullStr Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T
title_full_unstemmed Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T
title_short Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T
title_sort effect of sintering aids on microstructure and properties of textured sic ceramics prepared in 6 t
topic ceramics
gel-casting
high magnetic fields
sintering
x-ray diffraction
url http://dx.doi.org/10.1080/21870764.2020.1848035
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