Effects of phase transition on the structure and microwave dielectric properties of (1-x)CeO2-0.5xSm2O3 (x=0–0.9) ceramics

(1-x)CeO2-0.5xSm2O3 (x = 0–0.9) microwave dielectric ceramics are synthesized by the conventional solid-phase reaction method, with the effects of phase transition on structure and microwave dielectric properties being investigated in detail. The phase transition process is analyzed using the ionici...

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Bibliographic Details
Published in:Ceramics international 2025-01, Vol.51 (2), p.1432-1438
Main Authors: Ma, Shu-Yang, Xia, Wang-Suo, Shi, Ming-An, Wang, Ying, Chen, Lei-Ming, Wu, Hai-Tao
Format: Article
Language:English
Subjects:
(1-x)CeO2-0.5xSm2O3 ceramics
Microstructure
Microwave dielectric properties
Phase transition
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Summary:(1-x)CeO2-0.5xSm2O3 (x = 0–0.9) microwave dielectric ceramics are synthesized by the conventional solid-phase reaction method, with the effects of phase transition on structure and microwave dielectric properties being investigated in detail. The phase transition process is analyzed using the ionicity and lattice energy of (1-x)CeO2-0.5xSm2O3 ceramics, which is related to the coordination number and effective valence electron charge. With the increase of Sm3+ content, there are three phase regions: the cubic fluorite phase (0 ≤ x ≤ 0.4), the rare-earth C-type phase (0.4 
ISSN:0272-8842
DOI:10.1016/j.ceramint.2024.11.116