Effects of pore connectivity and microstructure on mechanical performance of ZrO2scaffolds and PMMA-infiltrated ZrO2composites

doi:10.1016/j.jallcom.2017.08.277

	Effects of pore connectivity and microstructure on mechanical performance of ZrO2scaffolds and PMMA-infiltrated ZrO2composites
	Wang, Feng 1; Xiong, Yaoyang 2; Ning, Congqin 1; Sun, Jian 2; Zeng, Yuping 1
刊名	Journal of Alloys and Compounds
	2017
卷号	728 页码:189-195
ISSN号	09258388
DOI	10.1016/j.jallcom.2017.08.277
英文摘要	To combine the advantages of ceramics and resins, ceramic/resin composites have been explored for dental restorations in recent years. ZrO2scaffold is considered as a promising candidate porous matrix for polymer-infiltrated composites due to its excellent biocompatibility and mechanical properties. In the present study, porous ZrO2scaffolds were prepared by adding pore-forming agent and sintered at 1200–1400 °C, the effects of porosity, pore connectivity and microstructure on the mechanical performance of ZrO2scaffolds and the corresponding PMMA-infiltrated ZrO2composites were investigated. To obtain a good pore connectivity and favorite mechanical properties of ceramic scaffolds, the content of pore-forming agent and sintering temperature should be well controlled. The flexural strength of ZrO2scaffolds was simply affected by the total porosity and sintering temperature. While the flexural strength of the infiltrated composites was dominated by both the strength of the porous scaffolds and the amount of closed pores. Crack bridging in the infiltrated composites is one of the important factors to the enhanced mechanical strength. The highest strength of 265.5 MPa was achieved in the composites infiltrated from the 1400°C-sintered scaffolds with an initial pore forming agent content of 30 wt%. © 2017 Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25458]
专题	中国科学院上海硅酸盐研究所
作者单位	1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 2.Department of Prosthodontics, Ninth Peoples Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai; 200011, China
推荐引用方式 GB/T 7714	Wang, Feng,Xiong, Yaoyang,Ning, Congqin,et al. Effects of pore connectivity and microstructure on mechanical performance of ZrO2scaffolds and PMMA-infiltrated ZrO2composites[J]. Journal of Alloys and Compounds,2017,728:189-195.
APA	Wang, Feng,Xiong, Yaoyang,Ning, Congqin,Sun, Jian,&Zeng, Yuping.(2017).Effects of pore connectivity and microstructure on mechanical performance of ZrO2scaffolds and PMMA-infiltrated ZrO2composites.Journal of Alloys and Compounds,728,189-195.
MLA	Wang, Feng,et al."Effects of pore connectivity and microstructure on mechanical performance of ZrO2scaffolds and PMMA-infiltrated ZrO2composites".Journal of Alloys and Compounds 728(2017):189-195.