Abstract
This study examined the microstructural features and mechanical properties of silicon carbide−calcium oxide/zirconium oxide (SiC–CaO/ZrO2) refractories with various compositions. The effect of cold pressing (CP) and cold isostatic pressing (CIP) methods on prepared refractories’ hardness and wear resistance were also investigated. It was found that incorporating SiC and CaO in ZrO2 leads to the formation of zirconium silicate (ZrSiO4) and calcium zirconate (CaZrO3) during the sintering stage. The addition of CaO and the formation of CaZrO3 decreased the hardness, thus reducing the wear resistance of the refractory. On the other hand, SiC addition and the formation of ZrSiO4 facilitated crack propagation due to the precipitation hardening of the material and stress concentration due to the ZrO2 phase transformation. The hardening effect of SiC–ZrO2 refractory resulted in hardness and wear resistance enhancement. It was also revealed that the application of pressure in an isostatic pressing can improve the mechanical properties of the refractories, which are used as lining materials in the steel manufacturing industry.
Acknowledgments
The authors are grateful for the generous assistance from Refractory Azarshahab Tabriz and Shahrood Azad University in carrying out practical tests and theoretical studies.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: Mohsen Zandi: Research study design, data collection, data analysis and interpretation, preparing a draft of the research article, careful/detailed review and revision of the draft article. Sahebali Manafi: Analysis and interpretation of data, review and approval of the final version of the article. Mohamad Bagher Limooei: Analysis and interpretation of data, review and approval of the final version of the article, detailed review and revision.
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Use of Large Language Models, AI and Machine Learning Tools: Not applicable.
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Conflict of interest: None declared.
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Research funding: None declared.
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Data availability: Not applicable.
References
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Articles in the same Issue
- Frontmatter
- Review
- Niosomes as versatile nanocarriers in diabetes research
- Original Papers
- Mechanical characterization of Kevlar/basalt fiber/epoxy hybrid composites containing multiwalled carbon nanotube particles
- Influence of Alclad layers on mechanical properties of friction stir welded 2024-T3 aluminium alloy thin sheets
- Evaluation of the wear behavior of silicon carbide−calcium oxide/zirconium oxide composite material
- Thermal cycling and oxidation behavior of lanthanum zirconate/yttria stabilized zirconia based thermal barrier coatings
- Assessment of material extrusion process parameters on the surface quality enhancement of 3D printed PLA specimens
- PVA/SiO2 nanocomposite films: evaluation of mechanical, thermal, optical and physico-schemical properties
- News
- DGM – Deutsche Gesellschaft für Materialkunde