Chemical heterogeneity-driven diffused phase transitions in Ba(Zr,Ti)O3 ceramics: Role of incomplete solid-state reactions
Source abstract
Abstract
Chemical heterogeneity in Ba(Zr0.1Ti0.9)O3(BZT) ceramics was formed by an incomplete solid-state reaction.XRD 12 and SEM-EDS analyses revealed the calcined powder contained a mixture of BZT particles with varying 13 concentrations of Zr.Such particles inhibited grain growth and resulted in diffuse phase transition in BZT ceramics 14 due to higher grain-boundary density and chemical heterogeneity.As the chemical heterogeneity was reduced by 15 increasing calcination and sintering temperatures, the grain size increased from 1.65 m to 38.5 m, resulting in their 16 dielectric behavior changing from diffuse phase transition to a proper ferroelectric.These results indicate that the 17 incomplete solid-state reaction plays an important role in microstructure evolution and electrical properties in BZT-18 based ceramics synthesized via solid-state reaction involving ZrO2.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Nagoya Institute of Technology and Friedrich-Alexander-Universität Erlangen-Nürnberg Joint Degree Doctoral Program in Energy Conversion System, Graduate School of Engineering, Nagoya Institute of Technology
Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg
Extreme Energy-Density Research Institute, Nagaoka University of Technology
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