Structure characteristics and microwave dielectric properties of novel Re2Ce6O15 (Re Y, Sm, Nd, La) ceramics

Wang, Ying; Cao, Ben-ben; Shi, Ming-an; Xia, Wangsuo; Wu, Haitao

doi:10.1016/j.ceramint.2023.04.023

Cited by 8 publications

(1 citation statement)

References 21 publications

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“…In 2020, Wang et al [7] studied the microwave dielectric properties of the CeO 2 solid solution with light rare earth oxides. In 2021, Wang et al [8] investigated the structure and microwave dielectric properties of CeO 2 -type ceramics with a cubic fluorite structure using the solid solution method. In 2023, Wang et al [9] utilized four light rare earth ions to substitute Ce 4+ ions in CeO 2 and investigated the microwave dielectric properties.…”

Section: Introductionmentioning

confidence: 99%

Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO ₂ ceramics with Yb ³⁺ substitution

Shi,

Ma,

Xia

et al. 2024

Journal of Advanced Ceramics

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Novel Yb x Ce 1−x O 2−0.5x (x = 0-0.8) ceramics, designed by replacing Ce 4+ with Yb 3+ ions were prepared by conventional oxide reaction, and the structural stability of the cubic fluorite structure was assessed using lattice energy and ionic properties of Ce/Yb-O bonds. The oxygen vacancy caused by unequal substitution, which played a decisive role in bond ionicity and lattice energy, was analyzed experimentally by XPS and also theoretically by first principles. The Yb x Ce 1−x O 2−0.5x ceramics maintain a stable cubic fluorite structure when x ≤ 0.47, corresponding to the minimum lattice energy of 4142 kJ/mol with the lowest ionicity as ƒ i = 87.57%. For microwave dielectric properties, when the Yb x Ce 1−x O 2−0.5x (x = 0-0.4) ceramics are pure phase, the porosity-corrected permittivity is dependent on the bond ionicity. The Q×ƒ values are related to the lattice energy and grain distribution. The temperature coefficient of resonance frequency has been analyzed using bond valence. When the Yb x Ce 1−x O 2−0.5x (x = 0.5-0.8) ceramics are multiple phases, the microwave dielectric properties are associated with the phase composition and grain growth.

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Section: Introductionmentioning

confidence: 99%

Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO ₂ ceramics with Yb ³⁺ substitution

Shi,

Ma,

Xia

et al. 2024

Journal of Advanced Ceramics

Self Cite

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Effect of raw material pretreatment and ionic radius on the preparation and microwave dielectric properties of Re2TiO5 ceramics

Zhu,

Li,

Chen

et al. 2024

Ceramics International

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

Ma,

Xia,

Shi

et al. 2024

Ceramics International

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Structure characteristics and microwave dielectric properties of novel Re2Ce6O15 (Re Y, Sm, Nd, La) ceramics

Cited by 8 publications

References 21 publications

Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO ₂ ceramics with Yb ³⁺ substitution

Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO ₂ ceramics with Yb ³⁺ substitution

Effect of raw material pretreatment and ionic radius on the preparation and microwave dielectric properties of Re2TiO5 ceramics

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

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Structure characteristics and microwave dielectric properties of novel Re2Ce6O15 (Re Y, Sm, Nd, La) ceramics

Cited by 8 publications

References 21 publications

Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO 2 ceramics with Yb 3+ substitution

Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO 2 ceramics with Yb 3+ substitution

Effect of raw material pretreatment and ionic radius on the preparation and microwave dielectric properties of Re2TiO5 ceramics

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

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Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO ₂ ceramics with Yb ³⁺ substitution

Effects of oxygen vacancy on bond ionicity, lattice energy, and microwave dielectric properties of CeO ₂ ceramics with Yb ³⁺ substitution