Preparation of 3D printed silicon nitride bioceramics by microwave sintering

Xiaofeng Zeng and Coswald Stephen Sipaut @ Mohd Nasri and Noor Maizura Ismail and Yuandong Liu and Yan Yan Farm and Bo Peng and Jiayu He (2024) Preparation of 3D printed silicon nitride bioceramics by microwave sintering. Scientific Reports, 14. pp. 1-14. ISSN 2045-2322

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Abstract

Silicon nitride (Si₃N₄) is a bioceramic material with potential applications. Customization and high reliability are the foundation for the widespread application of Si₃N₄ bioceramics. This study constructed a new microwave heating structure and successfully prepared 3D printed dense Si3N4 materials, overcoming the adverse efects of a large amount of 3D printed organic forming agents on degreasing and sintering processes, further improving the comprehensive performance of Si₃N₄ materials. Compared with control materials, the 3D printed Si₃N₄ materials by microwave sintering have the best mechanical performance: bending strength is 928 MPa, fracture toughness is 9.61 MPa·m1/2. Meanwhile, it has the best biocompatibility and antibacterial properties, and cells exhibit the best activity on the material surface. Research has shown that the excellent mechanical performance and biological activity of materials are mainly related to the high-quality degreasing, high cleanliness sintering environment, and high-quality liquid-phase sintering of materials in microwave environments.

Item Type:	Article
Keyword:	Si₃N₄, Microwave sintering, Mechanical properties, Biocompatibility, 3D printing
Subjects:	T Technology > T Technology (General) > T1-995 Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General)
Department:	FACULTY > Faculty of Engineering
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	18 Oct 2024 15:48
Last Modified:	18 Oct 2024 15:48
URI:	https://eprints.ums.edu.my/id/eprint/41480

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