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Preparation of zirconium carbide ceramic with good mechanical properties via gel-casting and pressureless sintering.

Authors :
Ma, Guocheng
Zhang, Huihui
Wang, Chengyu
Wu, Haibo
Yuan, Ming
Liu, Xuejian
Huang, Zhengren
Source :
Ceramics International. Sep2024:Part B, Vol. 50 Issue 17, p31732-31736. 5p.
Publication Year :
2024

Abstract

In this study, high-performance zirconium carbide (ZrC) ceramics prepared by gel-casting method were reported for the first time. A water-based slurry with 40 vol% solids was prepared using TMAH and PVP as dispersants, and the resulting green body had a flexural strength of 21.11 ± 1.84 MPa after curing, which was sufficient for machining. Dense ZrC ceramics (relative density >97 %) were obtained by sintering at 2000 °C under atmospheric pressure, and a 387 ± 23.21 MPa flexural strength and 15.48 ± 0.28 GPa hardness were achieved. This study offers a new strategy for preparing ZrC ceramics with complex structures. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02728842
Volume :
50
Issue :
17
Database :
Academic Search Index
Journal :
Ceramics International
Publication Type :
Academic Journal
Accession number :
178090967
Full Text :
https://doi.org/10.1016/j.ceramint.2024.05.382