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Design of High-Entropy Ceramics with IGZO-Based Compounds for Electroceramics Applications Read chapter Read first chapter

2023 | OriginalPaper | Chapter

Phase Equilibria of SiO2-Ce2O3-CaO-25wt.% Al2O3 System at 1773 K

Authors : Rensheng Li, Mengchuan Li, Tongsheng Zhang, Wanlin Wang

Published in: Advances in Powder and Ceramic Materials Science 2023

Publisher: Springer Nature Switzerland

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Abstract

The utilization of rare earth resources, especially secondary resources (e.g., RE-oxide system slag), has been limited by the lack of thermodynamic information. In order to supplement and refine the thermodynamic data related to rare earth, the equilibrium experiments of SiO2-Ce2O3-CaO-25wt.% Al2O3 system phase diagram were carried out at 1773 K by the high-temperature isothermal equilibration/quenching technique in the current paper. The composition of seven phase regions was determined by FE-SEM, XRD, EPMA, and XRF analysis on the samples obtained by high-temperature equilibrium technology at 1773 K, including the primary crystal regions of three compounds (C2AS, 2CaO·SiO2, and CaO·2Ce2O3·3SiO2), three three-phase coexistence regions (L + C2AS + 2CaO·SiO2, L + C2AS + CaO·2Ce2O3·3SiO2, and L + CaO·2Ce2O3·3SiO2 + CeAl11O18), and a liquid region. The phase relations and isotherms of SiO2-Ce2O3-CaO-25wt.% Al2O3 system obtained in current work are beneficial to the recycling of rare earth resources containing cerium.

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Metadata
Title
Phase Equilibria of SiO2-Ce2O3-CaO-25wt.% Al2O3 System at 1773 K
Authors
Rensheng Li
Mengchuan Li
Tongsheng Zhang
Wanlin Wang
Copyright Year
2023
Book
Advances in Powder and Ceramic Materials Science 2023

Print ISBN: 978-3-031-22621-2

Electronic ISBN: 978-3-031-22622-9

Copyright Year: 2023

DOI
https://doi.org/10.1007/978-3-031-22622-9_7

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