Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic

doi:10.1016/j.jeurceramsoc.2021.12.019

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	Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic
	Fu, Le 2; Jiang, Fuqing 1; Li, Bo 2; Cheng, Yongxin 3; Xu, Guofu 2; Huang, Jiwu 2; Engqvist, Hakan 4; Xia, Wei 4
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2022-04-01
卷号	42 期号:4 页码:1731-1742
关键词	Nanocrystalline glass-ceramics Transformability Dopant Thermal treatments
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2021.12.019
通讯作者	Fu, Le(fule2019@csu.edu.cn) ; Xia, Wei(wei.xia@angstrom.uu.se)
英文摘要	The addition of dopant(s) is an effective strategy to regulate the microstructure and properties of ZrO2-based ceramics. In this study, we investigated the effects of ternary element alloying, namely tantalum (Ta), niobium (Nb), and hafnium (Hf) elements, on the microstructure and transformability of ZrO2 nanocrystallites in a ZrO2SiO2 nanocrystalline glass-ceramic (NCGC) during sintering and thermal treatments. The ternary dopants enhanced the transformability of tetragonal ZrO2 (t-ZrO2) nanocrystallites during sintering, i.e., the dopants acted as t-ZrO2 destabilizer. The Ta, Nb and Hf elements dissolved in ZrO2 nanocrystallites, forming ZrO2 solid solution. Meanwhile, lamella nanotwins were formed within many ZrO2 nanocrystallites. No obvious segregation of dopants was detected at ZrO2 grain boundaries. t-ZrO2 and monoclinic (m) ZrO2 nanocrystallites were metastable in thermal treatments process, with "t" to "m" and the reverse "m" to "t" polymorphic transformation occurred simultaneously. Meanwhile, t-ZrO2 and m-ZrO2 nanocrystallites had a great tendency to grow larger during thermal treatments.
资助项目	National Natural Science Foundation of China[52102084] ; Open Sharing Fund for the Large-scale Instruments and Equipments provided by Central South University
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000742858000002
资助机构	National Natural Science Foundation of China ; Open Sharing Fund for the Large-scale Instruments and Equipments provided by Central South University
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173730]
专题	金属研究所_中国科学院金属研究所
通讯作者	Fu, Le; Xia, Wei
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 4.Uppsala Univ, Dept Engn Sci, Appl Mat Sci, S-75121 Uppsala, Sweden
推荐引用方式 GB/T 7714	Fu, Le,Jiang, Fuqing,Li, Bo,et al. Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2022,42(4):1731-1742.
APA	Fu, Le.,Jiang, Fuqing.,Li, Bo.,Cheng, Yongxin.,Xu, Guofu.,...&Xia, Wei.(2022).Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,42(4),1731-1742.
MLA	Fu, Le,et al."Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 42.4(2022):1731-1742.