DataVXAdvanced Engineering MaterialsPaper
journal article·2023-08

High‐Energy Storage Density and Efficiency of the xBi(Mg2/3Nb1/3)O3‐(1 − x)(Ba0.8Sr0.2)TiO3 (0.08 ≤ x ≤ 0.14) Lead‐Free Perovskite Structured Ceramics

Li-Xia Pang, Sen Ren, Xiao-Long Wang, Di Zhou, Wei-Guo Liu, Charanjeet Singh, Antonio Sergio Bezerra Sombra, Moustafa Adel Darwish

Advanced Engineering Materials· Volume 25· Issue 16
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Source abstract

Abstract

The compounds xBi(Mg2/3Nb1/3)O3‐(1 − x)(Ba0.8Sr0.2)TiO3 (xBMN‐(1 − x)BST, 0.08 ≤ x ≤ 0.14) are prepared via the traditional solid‐state reaction method and the ceramics are well densified in the sintering temperature range of 1280–1330 °C. X‐ray diffraction analysis shows that all the ceramics crystallize into perovskite structure. Proper amounts of BMN additions can effectively reduce grain sizes of the xBMN‐(1 − x)BST ceramics, resulting in more uniform microstructures. Accordingly, breakdown strength Eb is improved and a maximum value 250 kV cm−1 is obtained in ceramic with x = 0.10. Meanwhile, recoverable energy storage density Wrec of the 0.1BMN‐0.9BST ceramics reaches 2.03 J cm−3, and energy storage efficiency (η) is 96.8%. When the operating temperature increases to 150 °C, the Wrec and η values are about 1.02 J cm−3 under 150 kV cm−1 and 89.8%, respectively.
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Research context

Ceramics & glassesElectronic materials

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Dielectric materials and actuators

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory of Thin Film Techniques and Optical Test Xi'an Technological University Xi'an Shaanxi 710032 China

Key Laboratory of Multifunctional Materials and Structures Ministry of Education School of Electronic Science and Engineering Xi'an Jiaotong University Xi'an Shaanxi 710049 China

School of Electronics and Communication Engineering Lovely Professional University Jalandhar Punjab 144402 India

Telecommunication Engineering Department Federal University of Ceará (UFC) Fortaleza Ceará 60755-640 Brazil

Telecommunication and Materials Science and Engineering of Laboratory (LOCEM) Physics Department Federal University of Ceará (UFC) Pici Campus Fortaleza Ceará 60455-760 Brazil

Physics Department Faculty of Science Tanta University 31527 Al-Geish st. Tanta 60455-760 Egypt

Funding

National Natural Science Foundation of China · Fundamental Research Funds for Central Universities of the Central South University

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