The effect of T-ZnOw addition on the microstructure, mechanical and antibacterial properties of Si3N4 ceramics for biomedical applications

doi:10.1016/j.ceramint.2018.10.158

SIC OpenIR

	The effect of T-ZnOw addition on the microstructure, mechanical and antibacterial properties of Si3N4 ceramics for biomedical applications
	Liu, Tongwei; Zhou, Xin; Qi, Fangfang; Li, Ling; Li, Qinggang; Shi, Guopu; Zhang, Liu; Wang, Zhi; Dong, Shaoming; Zhu, Yongchang
	2019-02-01
Source Publication	CERAMICS INTERNATIONAL
ISSN	0272-8842
Volume	45 Issue:2 Pages:2393
Subtype	Article
Abstract	Si3N4 ceramics with constant proportion of sintering aids and different mass percentages of tetra-needle-like ZnO whisker (T-ZnOw) added were prepared by gas pressure sintering process at 1700 degrees C under an applied pressure of 4 MPa for 2 h. The microstructure, mechanical and antibacterial properties of Si3N4 ceramics were characterized and investigated. The results indicated that T-ZnOw could be well-dispersed in the sintered ceramic matrix and grain size of Si3N4 ceramics became larger with the addition of T-ZnOw. Moreover, the mechanical properties of Si3N4 ceramics with T-ZnOw added were slightly lower than those of samples without T-ZnOw added for the unnoticeable negative effects of T-ZnOw. Additionally, Si3N4 ceramics with T-ZnOw added possessed superior antibacterial rate against both Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) compared with samples without T-ZnOw added owing to generation and release of reactive oxygen and Zn2+ ions that could inhibit the growth of bacteria.
Keyword	Si3N4 ceramics T-ZnOw Antibacterial properties Gas pressure sintering
DOI	10.1016/j.ceramint.2018.10.158
Language	英语
WOS Research Area	Materials Science
Publisher	ELSEVIER SCI LTD
Citation statistics	Cited Times:3[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27376
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Liu, Tongwei,Zhou, Xin,Qi, Fangfang,et al. The effect of T-ZnOw addition on the microstructure, mechanical and antibacterial properties of Si3N4 ceramics for biomedical applications[J]. CERAMICS INTERNATIONAL,2019,45(2):2393.
APA	Liu, Tongwei.,Zhou, Xin.,Qi, Fangfang.,Li, Ling.,Li, Qinggang.,...&Zhu, Yongchang.(2019).The effect of T-ZnOw addition on the microstructure, mechanical and antibacterial properties of Si3N4 ceramics for biomedical applications.CERAMICS INTERNATIONAL,45(2),2393.
MLA	Liu, Tongwei,et al."The effect of T-ZnOw addition on the microstructure, mechanical and antibacterial properties of Si3N4 ceramics for biomedical applications".CERAMICS INTERNATIONAL 45.2(2019):2393.

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