Enhanced piezoelectric properties of 0.49Pb(Ni,Nb)O3–0.51Pb(Hf,Ti)O3 ceramics by ion pair doping

Li, Haoyu; Li, Zhimin; Yan, Yangxi; Zhang, Maolin; Zhang, Dongyan

doi:10.1007/s10854-020-04322-6

Cited by 2 publications

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“…[𝑟𝑟 (𝑁𝑁𝑁𝑁 1/3 𝑁𝑁𝑁𝑁 2/3 ) 4+ = (1/3 × 0.69 + 2/3 × 0.64) = 0.657 Å , coordination number (CN) = 6] being very similar to that of Ti 4+ (0.605 Å, CN = 6), and the valence of (Ni1/3Nb2/3) 4+ is the same as that of Ti 4+ . Nowadays many studies have reported (Ni1/3Nb2/3) 4+ substitution in ferroelectrics, mainly Pb-based ceramics such as Pb(Ni,Nb)O3-Pb(Zr,Ti)O3 and Pb(Ni,Nb)O3-Pb(Hf,Ti)O3 [36][37][38][39]. These results certify that the (Ni1/3Nb2/3) 4+ substitution is feasible and efficacious to improve the performances of Pb-based ceramics.…”

Section: / 41mentioning

confidence: 63%

Influences of substituting of (Ni_1/3Nb_2/3)⁴⁺for Ti⁴⁺on the phase compositions, microstructures, and dielectric properties of Li₂Zn[Ti_1−x(Ni_1/3Nb_2/3)_x]₃O₈(0 ≤x≤ 0.3) microwave ceramics

Li¹,

Wang²,

Guo³

et al. 2023

Journal of Advanced Ceramics

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Complex ions substitution is gaining more attention as an appealing method of modifying the structure and performance of microwave ceramics. In this work, Li2Zn[Ti1-x(Ni1/3Nb2/3)x]3O8 (LZTNNx, 0 ≤ x ≤ 0.3) ceramics were designed based on complex ions substitution strategy, following the substitution rule of radius and valence to investigate the 2 / 41 relationships between phase composition (containing oxygen vacancies and Ti 3+ ions), microstructure, and microwave dielectric characteristics of LZTNNx ceramics. The samples maintained a single Li2ZnTi3O8 solid solution phase as x ≤ 0.2 whereas the x = 0.3 sample produced a secondary phase with LiNbO3 structure. The appropriate amount of (Ni1/3Nb2/3) 4+ substitution could slightly improve the densification of LZTNNx ceramics due to the formation of Li2ZnTi3O8 solid solution accompanied by a decrease in average grain size. The presence of a new A1g Raman active band at about 848 cm -1 indicated that the local symmetry changed, affecting the atomic interactions of LZTNNx ceramics. The variation in dielectric constant (εr) was closely related to molar volume ionic polarizability, and the temperature coefficient of resonant frequency (τf) was related to the bond valence of Ti. The increase in density, the absences of Ti 3+ ions and oxygen vacancies, and the reduction in damping behavior were responsible for decreased dielectric loss. The LZTNN0.2 ceramic sintered at 1120 o C exhibited favorable microwave dielectric properties: εr = 22.13, quality factor (Q×f) = 97350 GHz, and τf = −18.6 ppm/ o C, which might be a promising candidate for wireless communication applications in highly selective electronics.

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Section: / 41mentioning

confidence: 63%

Influences of substituting of (Ni_1/3Nb_2/3)⁴⁺for Ti⁴⁺on the phase compositions, microstructures, and dielectric properties of Li₂Zn[Ti_1−x(Ni_1/3Nb_2/3)_x]₃O₈(0 ≤x≤ 0.3) microwave ceramics

Li¹,

Wang²,

Guo³

et al. 2023

Journal of Advanced Ceramics

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Anti-Electromagnetic Interference Design of Rail Transit Vehicles Based on the Magnetic Induction and Magnetoelectric Characteristics of Ferroelectric Ceramics

2022

Integrated Ferroelectrics

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Enhanced piezoelectric properties of 0.49Pb(Ni,Nb)O3–0.51Pb(Hf,Ti)O3 ceramics by ion pair doping

Cited by 2 publications

References 30 publications

Influences of substituting of (Ni_1/3Nb_2/3)⁴⁺for Ti⁴⁺on the phase compositions, microstructures, and dielectric properties of Li₂Zn[Ti_1−x(Ni_1/3Nb_2/3)_x]₃O₈(0 ≤x≤ 0.3) microwave ceramics

Influences of substituting of (Ni_1/3Nb_2/3)⁴⁺for Ti⁴⁺on the phase compositions, microstructures, and dielectric properties of Li₂Zn[Ti_1−x(Ni_1/3Nb_2/3)_x]₃O₈(0 ≤x≤ 0.3) microwave ceramics

Anti-Electromagnetic Interference Design of Rail Transit Vehicles Based on the Magnetic Induction and Magnetoelectric Characteristics of Ferroelectric Ceramics

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Enhanced piezoelectric properties of 0.49Pb(Ni,Nb)O3–0.51Pb(Hf,Ti)O3 ceramics by ion pair doping

Cited by 2 publications

References 30 publications

Influences of substituting of (Ni1/3Nb2/3)4+for Ti4+on the phase compositions, microstructures, and dielectric properties of Li2Zn[Ti1−x(Ni1/3Nb2/3)x]3O8(0 ≤x≤ 0.3) microwave ceramics

Influences of substituting of (Ni1/3Nb2/3)4+for Ti4+on the phase compositions, microstructures, and dielectric properties of Li2Zn[Ti1−x(Ni1/3Nb2/3)x]3O8(0 ≤x≤ 0.3) microwave ceramics

Anti-Electromagnetic Interference Design of Rail Transit Vehicles Based on the Magnetic Induction and Magnetoelectric Characteristics of Ferroelectric Ceramics

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Influences of substituting of (Ni_1/3Nb_2/3)⁴⁺for Ti⁴⁺on the phase compositions, microstructures, and dielectric properties of Li₂Zn[Ti_1−x(Ni_1/3Nb_2/3)_x]₃O₈(0 ≤x≤ 0.3) microwave ceramics

Influences of substituting of (Ni_1/3Nb_2/3)⁴⁺for Ti⁴⁺on the phase compositions, microstructures, and dielectric properties of Li₂Zn[Ti_1−x(Ni_1/3Nb_2/3)_x]₃O₈(0 ≤x≤ 0.3) microwave ceramics