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Optimized Comprehensive Piezoelectric Performances in Lead-Free BiFeO3-BaTiO3 Ceramics via Site-Selective Sm3+ Substitution
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DOI：10.1016/j.jsamd.2026.101207.png)
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Abstract
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• Site-specific doping strategy overcomes property trade-offs in piezoelectrics. • Sm3+ substitutions at Bi3+/Ba2+ sites in BF-BT ceramics reveals different changes. • Bi-site substitution reduces defects while Ba-site creates charge imbalance. • Optimal Bi-site doping balances piezoelectric properties including d33, Qm and Tm. • Dielectric measurements link material structure to piezoelectric performance.
Keywords:
Piezoelectric
Ferroelectric
BiFeO3-BaTiO3
Doping strategy
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