Next Article in Journal
Preparation of Antimony-Doped Tin Oxide Fly Ash Antistatic Composite and Its Properties in Filling EVA
Previous Article in Journal
A Study on the Shrinkage and Compressive Strength of GGBFS and Metakaolin Based Geopolymer under Different NaOH Concentrations
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Materials
Volume 17
Issue 5
10.3390/ma17051182
materials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals

by
Chang Zou
1,2,
Yangxin Ou
1,
Weiliang Zhou
3,
Zhiqiang Li
3,
Pu Zheng
3 and
Xingzhong Guo
1,2,*
1
School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
2
ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311200, China
3
Zhejiang Dongxin New Material Technology Co., Ltd., Taizhou 318000, China
*
Author to whom correspondence should be addressed.
Materials 2024, 17(5), 1182; https://doi.org/10.3390/ma17051182
Submission received: 31 January 2024 / Revised: 24 February 2024 / Accepted: 2 March 2024 / Published: 3 March 2024
Browse Figures
Versions Notes

Abstract

Silicon carbide (SiC) ceramics with high bending strength were prepared by hot pressing sintering (HPS) with yttrium aluminum garnet (Y3Al5O12, YAG) as sintering additive, and the effects of YAG content and sintering temperature on the sintering behavior, microstructure and mechanical properties of SiC ceramics were investigated in detail. The uniform distribution of YAG to form a liquid phase and the driving force provided by hot pressing sintering decrease the sintering temperature, improve the densification of SiC ceramics, and refine the crystal size. By means of suitable sintering conditions with the additional amount of YAG of 5 wt%, the sintering temperature of 1950 °C and a pressure of 30 MPa, the resultant SiC/YAG composite ceramics possesses high sintering and mechanical properties with the relative density of 98.53%, the bending strength of 675 MPa, the Vickers hardness of up to 17.92 GPa, and the elastic modulus of 386 GPa. The as-prepared SiC/YAG composite ceramics are promisingly used as the dry gas seal materials in the centrifugal compressors.
Keywords: silicon carbide; hot pressing sintering; yttrium aluminum garnet; ceramic material; microstructure silicon carbide; hot pressing sintering; yttrium aluminum garnet; ceramic material; microstructure

Share and Cite

MDPI and ACS Style

Zou, C.; Ou, Y.; Zhou, W.; Li, Z.; Zheng, P.; Guo, X. Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals. Materials 2024, 17, 1182. https://doi.org/10.3390/ma17051182

AMA Style

Zou C, Ou Y, Zhou W, Li Z, Zheng P, Guo X. Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals. Materials. 2024; 17(5):1182. https://doi.org/10.3390/ma17051182

Chicago/Turabian Style

Zou, Chang, Yangxin Ou, Weiliang Zhou, Zhiqiang Li, Pu Zheng, and Xingzhong Guo. 2024. "Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals" Materials 17, no. 5: 1182. https://doi.org/10.3390/ma17051182

APA Style

Zou, C., Ou, Y., Zhou, W., Li, Z., Zheng, P., & Guo, X. (2024). Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals. Materials, 17(5), 1182. https://doi.org/10.3390/ma17051182

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop