Fabrication of 3D printed Si3N4 bioceramics with superior comprehensive performance through ZnO nanowires doping

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) Fabrication of 3D printed Si3N4 bioceramics with superior comprehensive performance through ZnO nanowires doping. Ceramics International, 50. pp. 1-9. ISSN 0272-8842

Text FULL TEXT.pdf Restricted to Registered users only Download (9MB) | Request a copy

Abstract

Silicon nitride (Si3N4) material holds significant potential as a widespread applied biomedical material with high reliability in mechanical properties and biological activity. This study utilized 3D printing techniques to fabricate Si3N4 bioceramics reinforced with zinc oxide (ZnO) nanowires, which overcomes the dilemma faced by traditional Si3N4 materials, which possess excellent mechanical properties but lack sufficient antibacterial performance, or porous Si3N4 materials that exhibit good antibacterial properties yet suffer from poor mechanical characteristics. Compared to Ti-alloy, Al2O3, PEEK, and conventional Si3N4 materials, the Si3N4 bioceramic with an addition of 5 wt percent (wt%) ZnO nanowires retains superior mechanical properties: bending strength of 735 MPa, fracture toughness of 8.25 MPa m1/2, vickers hardness of 14.8 GPa, and compressive strength of 2575 MPa. Furthermore, the material demonstrates commendable biocompatibility and outstanding antibacterial effects. Cellular activity on the surface of this material is also noted to be exceptionally vigorous. Research indicates that the synergistic effects of 3D printing characteristics and the appropriate inclusion of ZnO nanowires, which positively interact with β-Si3N4 crystals, are primarily responsible for the exceptional comprehensive performance of 3D printed Si3N4 bioceramics.

Item Type:	Article
Keyword:	Si3N4 ZnO nanowire Comprehensive performance 3D printing Antibacterial
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1-9971 Electrical engineering. Electronics. Nuclear engineering > TK7800-8360 Electronics T Technology > TP Chemical technology > TP1-1185 Chemical technology > TP200-248 Chemicals: Manufacture, use, etc.
Department:	FACULTY > Faculty of Engineering
Depositing User:	ABDULLAH BIN SABUDIN -
Date Deposited:	16 May 2025 13:00
Last Modified:	16 May 2025 13:00
URI:	https://eprints.ums.edu.my/id/eprint/43786

Actions (login required)

View Item