Home Journals Articles Updates About
CN
image
收藏切换
Effect of Titania Additives on Densification and Mechanical Properties of Si3N4-SiCw Composites
收藏切换
Jing ZHANG1, Feng SUN1, 2, Weiru ZHANG1, 3, Tingxia DONG1
Journal of the Chinese Ceramic Society | 2021, 49(12) : 2790 - 2796
Less
收藏切换
Journal of the Chinese Ceramic Society | 2021, 49(12): 2790-2796
• Research Article •
Effect of Titania Additives on Densification and Mechanical Properties of Si3N4-SiCw Composites
Full
Jing ZHANG1, Feng SUN1, 2, Weiru ZHANG1, 3, Tingxia DONG1
Affiliations
  • 1.Sinoma Advanced Nitride Ceramics Co., Ltd., Zibo 255000, Shandong, China
  • 2.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  • 3.Shandong Industrial Ceramic Research and Design Institute Co., Ltd., Zibo 255000, Shandong, China

    • ZHANG Jing (1992-), male, Master, Engineer. E-mail:

About Author:

ZHANG Jing (1992-), male, Master, Engineer. E-mail:

Published: 2021-12-20 doi: 10.14062/j.issn.0454-5648.20210512
Outline
收藏切换

Si3N4-SiCw composites were prepared via a sinter-hot isostatic pressing (sinter-HIP) process with Yb2O3-Al2O3 as sintering additives. The effect of titania (TiO2) addition on the densification and mechanical properties of Si3N4-SiCw composites was investigated. The results show that the addition of titania enhances the densification of Si3N4-SiCw composites. The flexural strength, fracture toughness and Vickers hardness of Si3N4-8%SiCw composites firstly increase and then decrease with increasing titania content. Si3N4-8%SiCw composites containing 3% TiO2 have a near-theoretical density and optimal mechanical properties (i.e., the relative density of (99.5±0.1)%, the flexural strength of (1 301±87) MPa, the fracture toughness of (7.8±0.1) MPa·m1/2, and the Vickers hardness of (16.2±0.1) GPa). The formation of SiO2 and TiN based on the in-situ reaction between TiO2 with Si3N4 contributes to the improvement of the interfacial strength of bonding between SiC whisker and Si3N4 matrix as well as the mechanical behaviors of the composites.

silicon nitride  /  silicon carbide whisker  /  densification  /  mechanical properties  /  sinter-hot isostatic pressing
张晶, 孙峰, 张伟儒, 董廷霞. TiO2对Si3N4-SiCw复合材料致密化和力学性能的影响. 硅酸盐学报, 2021 , 49 (12) : 2790 -2796 . DOI: 10.14062/j.issn.0454-5648.20210512
Jing ZHANG, Feng SUN, Weiru ZHANG, Tingxia DONG. Effect of Titania Additives on Densification and Mechanical Properties of Si3N4-SiCw Composites[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (12) : 2790 -2796 . DOI: 10.14062/j.issn.0454-5648.20210512
Appendix
Less
Year 2021 volume 49 Issue 12
26
6
Cite this Article
BibTeX
Article Info
doi: 10.14062/j.issn.0454-5648.20210512
  • Receive Date：2021-06-26
  • Online Date：2026-10-30
  • Published：2021-12-20
Article Data
Affiliations
History
  • Received：2021-06-26
  • Revised：2021-08-03
Funding
Affiliations
    1.Sinoma Advanced Nitride Ceramics Co., Ltd., Zibo 255000, Shandong, China
    2.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
    3.Shandong Industrial Ceramic Research and Design Institute Co., Ltd., Zibo 255000, Shandong, China
References
Share
https://castjournals.cast.org.cn/joweb/gsyxb/EN/10.14062/j.issn.0454-5648.20210512
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House