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Lead-Free Piezoelectric Ceramics of (Bi1/2Na1/2)TiO3–1/2(Bi2O3·Sc2O3) System
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Bismuth sodium titanate, (Bi1/2Na1/2)TiO3 (BNT)-based solid solution,
(1- x)(Bi1/2Na1/2)TiO3– x1/2(Bi2O3·Sc2O3) [BNST-100 x], was studied in order to determine its dielectric,
ferroelectric and piezoelectric properties as a new group of lead-free piezoelectric ceramics.
Measurements of dielectric and piezoelectric properties show that the BNST-100 x ceramics
of composition near BNT composition have relatively low free permittivity, ε
33
T/ε
0 (=431)
and high electromechanical coupling factor, k
33 (=0.42). These ceramics are good candidates
for use as lead-free piezoelectric ceramics.
Title: Lead-Free Piezoelectric Ceramics of (Bi1/2Na1/2)TiO3–1/2(Bi2O3·Sc2O3) System
Description:
Bismuth sodium titanate, (Bi1/2Na1/2)TiO3 (BNT)-based solid solution,
(1- x)(Bi1/2Na1/2)TiO3– x1/2(Bi2O3·Sc2O3) [BNST-100 x], was studied in order to determine its dielectric,
ferroelectric and piezoelectric properties as a new group of lead-free piezoelectric ceramics.
Measurements of dielectric and piezoelectric properties show that the BNST-100 x ceramics
of composition near BNT composition have relatively low free permittivity, ε
33
T/ε
0 (=431)
and high electromechanical coupling factor, k
33 (=0.
42).
These ceramics are good candidates
for use as lead-free piezoelectric ceramics.
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