Home Journals Articles Updates About
CN
image
收藏切换
Effect of Oscillatory Pressure on Sintering Densification of High Quality Silicon Nitride Ceramics
收藏切换
Yao HAN1, Haiyan LI2, Zhipeng XIE3, Huadong WANG1, Heng DONG1, Zhiqiang SUN1, Bingqing ZHANG1, Jian ZHANG1, Yi LV1
Journal of the Chinese Ceramic Society | 2021, 49(4) : 673 - 680
Less
收藏切换
Journal of the Chinese Ceramic Society | 2021, 49(4): 673-680
Effect of Oscillatory Pressure on Sintering Densification of High Quality Silicon Nitride Ceramics
Full
Yao HAN1, Haiyan LI2, Zhipeng XIE3, Huadong WANG1, Heng DONG1, Zhiqiang SUN1, Bingqing ZHANG1, Jian ZHANG1, Yi LV1
Affiliations
  • 1.Aerospace Institute of Advanced Materials & Processing Technology, Beijing 100074, China
  • 2.China Building Material Test & Certification Group Co., Ltd, Beijing 100024, China
  • 3.State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China

    • HAN Yao (1990-), male, Ph.D., Engineer. E-mail:

About Author:

HAN Yao (1990-), male, Ph.D., Engineer. E-mail:

Published: 2021-04-20 doi: 10.14062/j.issn.0454-5648.20200636
Outline
收藏切换

Oscillatory pressure sintering (OPS) technique was used to prepare silicon nitride ceramics with high quality. In comparison with hot pressure (HP) sintering process, the density, phase, grain size, aspect ratio and microstructure of silicon nitride ceramics by two methods were further investigated. The densification effect of oscillatory pressure on silicon nitride ceramics were studied. The results indicate that the silicon nitride ceramic has reached a complete phase transition from α phase to β phase under OPS process and its relative density has reached 99.82%. The grain sizes of OPS specimen are significantly increased compared with the specimen prepared by HP process. The average aspect ratio of the grains has increased from 3.79 to 4.86 when the fabricated process changed from HP to OPS. Bending strength, hardness and fracture toughness reached 1 333 MPa, 16.2 GPa, 12.1 MPa·m1/2, respectively. Fracture surface energy also increased with the introduction of oscillatory pressure. In addition, obvious deformation streaks and dislocation movement areas are observed through TEM analysis. Obviously, the application of oscillatory pressure improves the densification rate and the growth driving force of grains. The plastic deformation of silicon nitride during the densification process were also found. Thereby, the sintering densification process was accelerated.

silicon nitride  /  densification  /  oscillatory pressure  /  sintering  /  grain size  /  microstructure
韩耀, 李海燕, 谢志鹏, 王华栋, 董衡, 孙志强, 张冰清, 张剑, 吕毅. 振荡压力对高性能氮化硅陶瓷烧结致密化的影响. 硅酸盐学报, 2021 , 49 (4) : 673 -680 . DOI: 10.14062/j.issn.0454-5648.20200636
Yao HAN, Haiyan LI, Zhipeng XIE, Huadong WANG, Heng DONG, Zhiqiang SUN, Bingqing ZHANG, Jian ZHANG, Yi LV. Effect of Oscillatory Pressure on Sintering Densification of High Quality Silicon Nitride Ceramics[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (4) : 673 -680 . DOI: 10.14062/j.issn.0454-5648.20200636
Appendix
Less
Year 2021 volume 49 Issue 4
25
8
Cite this Article
BibTeX
Article Info
doi: 10.14062/j.issn.0454-5648.20200636
  • Receive Date：2020-08-23
  • Online Date：2026-10-30
  • Published：2021-04-20
Article Data
Affiliations
History
  • Received：2020-08-23
  • Revised：2020-11-18
Funding
Affiliations
    1.Aerospace Institute of Advanced Materials & Processing Technology, Beijing 100074, China
    2.China Building Material Test & Certification Group Co., Ltd, Beijing 100024, China
    3.State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
References
Share
https://castjournals.cast.org.cn/joweb/gsyxb/EN/10.14062/j.issn.0454-5648.20200636
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