Electrical properties of Bi2.99(Li0.5Sm0.5)0.01Ti1-x(Mn1/3Ta2/3)xNbO9 high-temperature piezoelectric ceramics via oxygen vacancy defects tailoring

Dingwei Hou; Huiqing Fan; Fan Yang; Yuxin Jia; Weijia Wang

doi:10.1016/j.ceramint.2022.07.052

Electrical properties of Bi_2.99(Li_0.5Sm_0.5)_0.01Ti_1-x(Mn_1/3Ta_2/3)_xNbO₉ high-temperature piezoelectric ceramics via oxygen vacancy defects tailoring

Dingwei Hou, Huiqing Fan, Fan Yang, Yuxin Jia, Weijia Wang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Tribismuth titanium niobium oxide (B₃TiNbO₉, BTNO) is one of the Aurivillius phases with the highest Curie temperature (T_c), but its piezoelectric coefficient (d₃₃) is poor. When x = 0.045, high-temperature piezoelectric ceramics with d₃₃ of 11.9 pC/N and T_c of 916.7 °C were prepared by (Mn_1/3Ta_2/3)^(4+ω)+ modification of Ti⁴⁺ at B-site of Bi_2.99(Li_0.5Sm_0.5)_0.01Ti_1-x(Mn_1/3Ta_2/3)_xNbO₉. The substitution will aggravate the distortion of BO6 octahedron due to the displacement of oxygen ions. The existence of Mn³⁺ in the dopant will act as an oxygen vacancy trap and then increase the resistivity. As a result, BTNO ceramics have enhanced piezoelectric properties as well as temperature and cycle stability. This work provides a theoretical basis for better high-temperature piezoelectric properties of A/B co-doped Aurivillius phase ceramics in the future.

Original language	English
Pages (from-to)	30951-30959
Number of pages	9
Journal	Ceramics International
Volume	48
Issue number	20
DOIs	https://doi.org/10.1016/j.ceramint.2022.07.052
State	Published - 15 Oct 2022

Keywords

Aurivillius phase
Nonlinear conductivity
Oxygen vacancy defects tailor
Rietveld refinement

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10.1016/j.ceramint.2022.07.052

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title = "Electrical properties of Bi2.99(Li0.5Sm0.5)0.01Ti1-x(Mn1/3Ta2/3)xNbO9 high-temperature piezoelectric ceramics via oxygen vacancy defects tailoring",

abstract = "Tribismuth titanium niobium oxide (B3TiNbO9, BTNO) is one of the Aurivillius phases with the highest Curie temperature (Tc), but its piezoelectric coefficient (d33) is poor. When x = 0.045, high-temperature piezoelectric ceramics with d33 of 11.9 pC/N and Tc of 916.7 °C were prepared by (Mn1/3Ta2/3)(4+ω)+ modification of Ti4+ at B-site of Bi2.99(Li0.5Sm0.5)0.01Ti1-x(Mn1/3Ta2/3)xNbO9. The substitution will aggravate the distortion of BO6 octahedron due to the displacement of oxygen ions. The existence of Mn3+ in the dopant will act as an oxygen vacancy trap and then increase the resistivity. As a result, BTNO ceramics have enhanced piezoelectric properties as well as temperature and cycle stability. This work provides a theoretical basis for better high-temperature piezoelectric properties of A/B co-doped Aurivillius phase ceramics in the future.",

keywords = "Aurivillius phase, Nonlinear conductivity, Oxygen vacancy defects tailor, Rietveld refinement",

author = "Dingwei Hou and Huiqing Fan and Fan Yang and Yuxin Jia and Weijia Wang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd and Techna Group S.r.l.",

year = "2022",

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doi = "10.1016/j.ceramint.2022.07.052",

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T1 - Electrical properties of Bi2.99(Li0.5Sm0.5)0.01Ti1-x(Mn1/3Ta2/3)xNbO9 high-temperature piezoelectric ceramics via oxygen vacancy defects tailoring

AU - Hou, Dingwei

AU - Fan, Huiqing

AU - Yang, Fan

AU - Jia, Yuxin

AU - Wang, Weijia

PY - 2022/10/15

Y1 - 2022/10/15

N2 - Tribismuth titanium niobium oxide (B3TiNbO9, BTNO) is one of the Aurivillius phases with the highest Curie temperature (Tc), but its piezoelectric coefficient (d33) is poor. When x = 0.045, high-temperature piezoelectric ceramics with d33 of 11.9 pC/N and Tc of 916.7 °C were prepared by (Mn1/3Ta2/3)(4+ω)+ modification of Ti4+ at B-site of Bi2.99(Li0.5Sm0.5)0.01Ti1-x(Mn1/3Ta2/3)xNbO9. The substitution will aggravate the distortion of BO6 octahedron due to the displacement of oxygen ions. The existence of Mn3+ in the dopant will act as an oxygen vacancy trap and then increase the resistivity. As a result, BTNO ceramics have enhanced piezoelectric properties as well as temperature and cycle stability. This work provides a theoretical basis for better high-temperature piezoelectric properties of A/B co-doped Aurivillius phase ceramics in the future.

AB - Tribismuth titanium niobium oxide (B3TiNbO9, BTNO) is one of the Aurivillius phases with the highest Curie temperature (Tc), but its piezoelectric coefficient (d33) is poor. When x = 0.045, high-temperature piezoelectric ceramics with d33 of 11.9 pC/N and Tc of 916.7 °C were prepared by (Mn1/3Ta2/3)(4+ω)+ modification of Ti4+ at B-site of Bi2.99(Li0.5Sm0.5)0.01Ti1-x(Mn1/3Ta2/3)xNbO9. The substitution will aggravate the distortion of BO6 octahedron due to the displacement of oxygen ions. The existence of Mn3+ in the dopant will act as an oxygen vacancy trap and then increase the resistivity. As a result, BTNO ceramics have enhanced piezoelectric properties as well as temperature and cycle stability. This work provides a theoretical basis for better high-temperature piezoelectric properties of A/B co-doped Aurivillius phase ceramics in the future.

KW - Aurivillius phase

KW - Nonlinear conductivity

KW - Oxygen vacancy defects tailor

KW - Rietveld refinement

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U2 - 10.1016/j.ceramint.2022.07.052

DO - 10.1016/j.ceramint.2022.07.052

M3 - 文章

AN - SCOPUS:85134250149

SN - 0272-8842

VL - 48

SP - 30951

EP - 30959

JO - Ceramics International

JF - Ceramics International

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ER -

Electrical properties of Bi_2.99(Li_0.5Sm_0.5)_0.01Ti_1-x(Mn_1/3Ta_2/3)_xNbO₉ high-temperature piezoelectric ceramics via oxygen vacancy defects tailoring

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