University of Oulu

Huang, W., Qiu, H., Zhang, Y., Nan, L., Gao, L., Chen, J., Omran, M., & Chen, G. (2022). Preparation of nano zirconia by binary doping: Effect of controlled sintering on structure and phase transformation. Ceramics International, 48(17), 25374–25381.

Preparation of nano zirconia by binary doping : effect of controlled sintering on structure and phase transformation

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Author: Huang, Weiwei1; Qiu, Hongju1; Zhang, Yanqiong1;
Organizations: 1School of Chemistry and the Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, PR China
2Hong He University, Mengzi, 661199, PR China
3Faculty of Technology, University of Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link:
Language: English
Published: Elsevier, 2022
Publish Date: 2024-09-01


Tetragonal zirconia has excellent mechanical properties and biocompatibility, and is widely used in medicine, aviation, ceramics, and other fields. In this study, nano-zirconia (6MgO–2Y₂O₃–ZrO₂) was prepared by co-precipitation method assisted with pressure-less sintering which was used to obtain tetragonal phase zirconia. The zirconia powders were analyzed by XRD, Raman spectroscopy, FT-IR, SEM, and Gaussian mathematical fitting. The outcomes demonstrate that elevated temperature favors the promotion of phase transitions which enhances structural properties and the crystallinity of zirconia, and enables the stable existence of t-ZrO₂ at room temperature. The size of the powder gradually decreases, and the particle size distribution becomes narrower with the temperature increases. With the increasing specific surface area, the morphology of nano-oxidation gradually tends to be spherical. In the sintering temperature (350 °C–950 °C), the spherical nano-powders obtained at 950 °C shows the lowest voidage and the best density. In actual production, it can provide a reference for the preparation of high-quality nano-zirconia and broaden the application field of zirconia.

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Series: Ceramics international
ISSN: 0272-8842
ISSN-E: 1873-3956
ISSN-L: 0272-8842
Volume: 48
Issue: 17
Pages: 25374 - 25381
DOI: 10.1016/j.ceramint.2022.05.211
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
215 Chemical engineering
221 Nanotechnology
Funding: Financial support from Innovative Research Team (in Science and Technology) in University of Yunnan Province and the National Natural Science Foundation of China (Grant No. 51764052).
Copyright information: © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http:/