Phase formation and electrical properties of SBNLT ceramics prepared via combustion technique

IF 1.7 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Science and Technology Pub Date : 2023-07-25 DOI:10.1080/02670836.2023.2238415
Thanapon Sinkruason, Anupong Luangpangai, N. Charoenthai, A. Rittidech, P. Pulphol, N. Vittayakorn, T. Bongkarn
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Abstract

This report investigates the effect of firing temperatures on the phase formation, microstructure, electrical, and energy storage properties of lead-free Sr0.3(Bi0.7Na0.67Li0.03)0.5TiO3 (SBNLT) ceramics, synthesised by combustion technique. The samples were calcined between 700°C and 900°C for 2 h and sintered between 1100°C and 1200°C for 2 h. The ceramics exhibited coexisting rhombohedral and tetragonal phases, which were confirmed by the Rietveld refinement technique. A morphotropic phase boundary (MPB) of the rhombohedral and tetragonal phases, with a ratio of 49:51, was obtained at the sintering temperature of 1175°C. The highest maximum dielectric constant (ε max = 4667), polarisation (P max = 28.80 µC/cm2) and energy density (W = 0.95 J/cm3), with a breakdown strength of 70 kV/cm, were achieved from the sample sintered at 1175°C.
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燃烧法制备SBNLT陶瓷的相形成及电学性能
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来源期刊
Materials Science and Technology
Materials Science and Technology 工程技术-材料科学:综合
CiteScore
2.70
自引率
5.60%
发文量
0
审稿时长
3 months
期刊介绍: 《Materials Science and Technology》(MST) is an international forum for the publication of refereed contributions covering fundamental and technological aspects of materials science and engineering.
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