Published December 2018 | Version v1
Journal article Metadata-only

Structure, dielectric behaviours, enhanced polarization responses and energy storage properties in (1 - x)SrTiO3-xBi(Mg1/2Ti1/2)O3 ceramics

Creators

  • 1. Xi'an Technological University, School of Materials and Chemical Engineering, Xi'an (China)
  • 2. Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming (China)
  • 3. Xi'an Jiaotong University, MOE Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, School of Science, Xi'an (China)
  • 4. Northwest Institute for Nonferrous Metal Research, Xi'an (China)

Description

In this work, ceramics of (1 - x)SrTiO3-xBi(Mg1/2Ti1/2)O3 (ST-BMT, x = 0.05-0.5) were successfully prepared. A single-phase perovskite structure is formed for all the compositions. The average structure is cubic at room temperature. The Raman analysis suggests that the 5 mol% BMT addition might cause the existence of the local tetragonal distortions at room temperature. All the compositions display a frequency-dependent and highly diffused dielectric anomaly. The BMT addition can effectively shift the freezing temperature (Tf), from ∝ 32 K for x = 0.1 up to ∝ 240 K for x = 0.5. The compositions with x = 0.4 and 0.5 show a small change in the relative permittivity (Δε'/ε'373K < ± 15% at 1 kHz) and keep low values of the dielectric loss (tanδ < 0.01 for x = 0.01 at 1 kHz) in the temperature range of 373-523 K. The BMT addition induces an enhancement of the polarization maxima. Among the compositions, 0.7ST-0.3BMT shows the optimum energy storage performance (Wrec, 0.78 J/cm3). (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1007/s00339-018-2295-9

Additional details

Identifiers

DOI
10.1007/s00339-018-2295-9;

Publishing Information

Journal Title
Applied Physics. A, Materials Science and Processing
Journal Volume
124
Journal Issue
12
Journal Page Range
p. 1-9
ISSN
0947-8396
CODEN
APAMFC

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
50010032
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BISMUTH COMPOUNDS; CERAMICS; COMPOSITE MATERIALS; CUBIC LATTICES; ENERGY STORAGE; EXPERIMENTAL DATA; FREQUENCY DEPENDENCE; HZ RANGE; LATTICE PARAMETERS; MAGNESIUM OXIDES; PERMITTIVITY; RAMAN SPECTRA; RELAXATION LOSSES; SCANNING ELECTRON MICROSCOPY; STRONTIUM TITANATES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TETRAGONAL LATTICES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DATA; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; ELECTRON MICROSCOPY; ENERGY LOSSES; FREQUENCY RANGE; INFORMATION; LOSSES; MAGNESIUM COMPOUNDS; MATERIALS; MICROSCOPY; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SPECTRA; STORAGE; STRONTIUM COMPOUNDS; TEMPERATURE RANGE; THREE-DIMENSIONAL LATTICES; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS