Assessing fracture toughness in sintered Al2O3-ZrO2(3Y)-SiC ceramic composites through indentation technique

doi:10.1016/j.ceramint.2020.07.194

	Assessing fracture toughness in sintered Al2O3-ZrO2(3Y)-SiC ceramic composites through indentation technique
	Chai, Jianlong 1,2; Zhu, Yabin 1,2; Shen, Tielong 1,2; Liu, Yiwen 1,2; Niu, Lijuan 1,2; Li, Shufen 1,2; Jin, Peng 1,2; Cui, Minghuan 1,2; Wang, Zhiguang 1,2
刊名	CERAMICS INTERNATIONAL
	2020-12-01
卷号	46 期号:17 页码:27143-27149
关键词	Al2O3-ZrO2(3Y)-SiC Indentation technique Toughness fracture Toughening mechanism
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2020.07.194
通讯作者	Zhu, Yabin(zhuyabin@impcas.ac.cn) ; Wang, Zhiguang(zhgwang@impcas.ac.cn)
英文摘要	Al2O3-ZrO2(3Y)-SiC ceramic composites were prepared by spark plasma sintering. The fracture toughness (K-IC) of the material was evaluated by indentation technique using different types of empirical formulas between 29.4 N and 98 N. The calculated K-IC values depend on the crack profile and the applied load. By analyzing the relationship between the indentation radius and the crack length and the crack profile, the crack form of the composite is determined as a Palmqvist crack. Raman spectra result shows that ZrO2 has a significant martensitic phase transformation when the applied load is 5 kg or higher. Additionally, the KIC value decreases slightly as the load increases. The equation based on the Palmqvist crack system and the curve fitting equation are more suitable for the calculation of the K-IC value of the material. The composite exhibits a combination of various toughening mechanisms, such as crack deflection and bridging, thereby improving the fracture toughness of the material.
资助项目	National Natural Science Foundation of China[U1832206] ; National Natural Science Foundation of China[11805245] ; National Natural Science Foundation of China[11505247] ; National Natural Science Foundation of China[U1832149] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21010202] ; Sichuan Science and Technology Program[2018JZ0014] ; National Key Research and Development Project[2018YFE0307100] ; Key Programs of the Chinese Academy of Sciences (Research on the Development of Nuclear Power Materials and Service Security Technology)[ZDRW-CN-2017-1]
WOS关键词	ELASTIC-PLASTIC INDENTATION ; MECHANICAL-PROPERTIES ; PHASE-TRANSFORMATION ; PALMQVIST CRACK ; MICROSTRUCTURE ; DAMAGE
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000577586400076
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Sichuan Science and Technology Program ; National Key Research and Development Project ; Key Programs of the Chinese Academy of Sciences (Research on the Development of Nuclear Power Materials and Service Security Technology)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/139758]
专题	中国科学院近代物理研究所
通讯作者	Zhu, Yabin; Wang, Zhiguang
作者单位	1.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Chai, Jianlong,Zhu, Yabin,Shen, Tielong,et al. Assessing fracture toughness in sintered Al2O3-ZrO2(3Y)-SiC ceramic composites through indentation technique[J]. CERAMICS INTERNATIONAL,2020,46(17):27143-27149.
APA	Chai, Jianlong.,Zhu, Yabin.,Shen, Tielong.,Liu, Yiwen.,Niu, Lijuan.,...&Wang, Zhiguang.(2020).Assessing fracture toughness in sintered Al2O3-ZrO2(3Y)-SiC ceramic composites through indentation technique.CERAMICS INTERNATIONAL,46(17),27143-27149.
MLA	Chai, Jianlong,et al."Assessing fracture toughness in sintered Al2O3-ZrO2(3Y)-SiC ceramic composites through indentation technique".CERAMICS INTERNATIONAL 46.17(2020):27143-27149.