Internal stress and dislocation-mediated phase structure and conduction mechanism in flash-sintered Na1/2Bi1/2TiO3-based ceramics

Key Points

• The study aims to investigate the relationship between internal stress and the phase structure of Na1/2Bi1/2TiO3 ceramics to understand their conduction mechanisms.
• Conducted flash sintering experiments on Na1/2Bi1/2TiO3-based ceramics
• Analyzed internal stress and dislocation effects on phase structure
• Measured piezoelectric and ionic conductivity properties
• Identified a correlation between dislocation density and enhanced conductivity
• Demonstrated improved piezoelectric response under specific stress conditions
• Found that internal stress significantly influences the phase stability and conduction mechanisms