Electrical characterization of Bi0.5Na0.5TiO3 obtained by high-energy milling
Abstract
The bismuth sodium titanate (Bi0.5Na0.5TiO3) has gained attention recently due to its piezoelectric properties and lead-free composition. These attributes position it as a promising alternative to replace lead-based piezoelectric materials, known for their high environmental impact. This study delves into the electrical, dielectric, and structural characteristics of Bi0.5Na0.5TiO3 as a potential piezoelectric material. The Bi0.5Na0.5TiO3 was synthesized via high-energy milling followed by low-temperature sintering at 900°C. X-ray diffraction analysis confirms the formation of a single-phase Bi0.5Na0.5TiO3 compound with a rhombohedral structure. The dielectric properties display stable permittivity values (ranging from 465 to 419) at high frequencies, accompanied by minimal dielectric losses. Electric polarization curves reveal typical behavior of a hard ferroelectric material, featuring a notably high coercive field of 50 kV/cm and a saturation polarization of 25.7 µC/cm2.
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References
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Copyright (c) 2023 Luis Gerardo Betancourt-Cantera, Ana María Bolarín-Miró, Félix Sánchez-De-Jesús, Claudia Alicia Cortés-Escobedo, Omar Rosales-González
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