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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 PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume45Issue:2Pages:2393
SubtypeArticle
AbstractSi3N4 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.
KeywordSi3N4 ceramics T-ZnOw Antibacterial properties Gas pressure sintering
DOI10.1016/j.ceramint.2018.10.158
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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