Design and performance study of high-reliable alumina ceramic composites for sports fitness equipment

• Published in: Journal of ceramic processing research pp. 910 - 917
• Main Author: Dandan Zhao
• Format: Journal Article
• Language: English
• Published: 청정에너지연구소 01.10.2024
• Subjects: 재료공학
• ISSN: 1229-9162; 2672-152X
• DOI: 10.36410/jcpr.2024.25.5.910

Alumina ceramics have been identified as a potential material for fitness equipment due to their unique properties likehardness, high wear resistance, and chemical stability. The brittle nature of alumina ceramics limits their use in areas wheretoughness and impact resistance are essential. To meet the high toughness and crack resistance requirements of alumina,researchers have searched for possible composite structures mimicking natural material. In this study, alumina ceramiccomposites were prepared using advanced materials like hexagonal boron nitride (hBN) and graphene oxide (GO) platelets,which can support stress redistribution, energy dissipation, and crack deflection at the interfaces. The spark plasma sinteringtemperature for the alumina-BN or GO composite preparation was optimized as 1400 °C. The mechanical properties of thecomposites were improved compared to the control alumina matrix. The phase of BN and GO in the alumina matrix remainedstable during the SPS process, while at higher concentrations, GO transformed into a more ordered graphitic structure andcontributed to better mechanical properties. The microstructure analysis confirmed the uniform distribution of BN and GOplatelets in the alumina matrix. The novel alumina composites prepared using BN or GO in the present study are ideal forthe manufacturing of ceramic material-based fitness equipment. KCI Citation Count: 0