Influence of CeO2 additive on the phase transformations of zirconia from zircon ore by carbothermal reduction process

T. Wang, Y. Xu, Z. Huang, M. Fang, Y. Liu, X. Wu, L. Yin, B. Liu, Xiao Hu

Research output: Chapter in Book/Conference paperConference paper

1 Citation (Scopus)

Abstract

This paper mainly discusses the influences of heating temperatures and CeO2 additive contents on the phase transformations of zirconia from zircon ore by carbothermal reduction. The phase transformations of zirconia from zircon ore by carbothermal reduction were monitored by X-ray diffraction. The microstructure of the product was characterized by scanning electron microscopy. The results show that without adding CeO2, the optimized heating temperature of zircon carbothermal reduction was 1600 °C and the main phases of the product were m-ZrO2, ZrC and β-SiC, t-ZrO2; After adding CeO2, the main phase of the products consists of t-ZrO2, m-ZrO2, ZrC and β-SiC when the heating temperature is 1600 °C. CeO2 additive can be introduced into zirconia lattice and can cause it to form cerium stabilized zirconia. Zirconia in the product would be turned into partially stabilized zirconia with cerium addition from 5 wt% to 20 wt%. However, the form of zirconia in the product is not changed greatly with the amount of CeO2 additive increase. © (2014) Trans Tech Publications, Switzerland.
Original languageEnglish
Title of host publicationKey Engineering Materials
Place of PublicationSwitzerland
PublisherScientific.net
Pages238-241
Volume602-603
ISBN (Print)9783038350415
DOIs
Publication statusPublished - 2014
Event8th China International Conference on High-Performance Ceramics (CICC-8) - China, Chongquing, China
Duration: 4 Nov 20137 Nov 2013

Conference

Conference8th China International Conference on High-Performance Ceramics (CICC-8)
Abbreviated titleCICC-8
CountryChina
CityChongquing
Period4/11/137/11/13

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