Effect of A- or B-Site Sc Doping on Sintering Temperature, Crystal Structure, Microstructure, and Properties of BaZrxTi1−xO3 Ceramics

BaZrxTi1−xO3 (BZT) ceramics with different concentrations of Sc ions were prepared, and the effect of doping concentration on the crystal substitution type of BZT was studied. The substitution position of the Sc ion in BZT was related to its concentration. When the concentration of Sc ions was low (...

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Published inMaterials Vol. 16; no. 20; p. 6635
Main Authors Zhang, Kaituo, Li, Tiantian, Xu, Yuan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 11.10.2023
MDPI
Subjects
A-site or B-site substitution
Annealing
BaTiO3
Ceramics
Crystal structure
Dielectric properties
Doping
Energy consumption
Grain boundaries
Ion concentration
Metal oxides
Microstructure
Phase transitions
Sc doping
Scanning electron microscopy
Sintering
Spectrum analysis
Substitutes
Temperature
Test systems
Japan
Germany
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Summary:BaZrxTi1−xO3 (BZT) ceramics with different concentrations of Sc ions were prepared, and the effect of doping concentration on the crystal substitution type of BZT was studied. The substitution position of the Sc ion in BZT was related to its concentration. When the concentration of Sc ions was low (<1.0 mol %), it showed B-site substitution; otherwise, Sc ions showed A-site substitution. In addition, the effects of the Sc ion concentration on the sintering temperature, crystal structure, microstructure, and properties of BZT were also studied. The results showed that the introduction of Sc ions can reduce the sintering temperature to 1250 °C. When the concentration of Sc ions was 1.0 mol % and 2.0 mol %, the high dielectric constants of BZT were 14,273 and 12,747, respectively.
Bibliography:ObjectType-Article-1
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma16206635