Premium
Piezoelectric and ferroelectric properties of (Bi,Na)TiO 3 –(Bi,Li)TiO 3 –(Bi,K)TiO 3 ceramics for accelerometer application
Author(s) -
Lee GyoungJa,
Kim ByungHoon,
Yang SunA,
Park JinJu,
Bu SangDon,
Lee MinKu
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14614
Subject(s) - piezoelectricity , materials science , ferroelectricity , ceramic , sintering , piezoelectric coefficient , analytical chemistry (journal) , accelerometer , mineralogy , temperature coefficient , ferroelectric ceramics , composite material , piezoelectric accelerometer , dielectric , optoelectronics , chemistry , physics , chromatography , quantum mechanics
The piezoelectric and ferroelectric properties of 0.76(Bi 0.5 Na 0.5 )TiO 3 –0.04(Bi 0.5 Li 0.5 )TiO 3 –0.2(Bi 0.5 K 0.5 )TiO 3 (abbreviated as 0.76 BNT –0.04 BLT –0.2 BKT ) ceramics were investigated to clarify the optimal sintering temperature, and the vibration characteristics were examined for a compression‐mode accelerometer assembly in which 0.76 BNT –0.04 BLT –0.2 BKT ceramics sintered at the optimized temperature served as the piezoelectric elements. The increase in the grain size of the 0.76 BNT –0.04 BLT –0.2 BKT ceramics with the sintering temperature provides a beneficial contribution to the piezoelectric coefficient; however, it detrimentally contributes to the depolarization temperature. The charge sensitivity of the prototype accelerometers was evaluated with changes in the seismic mass and the layer number of the piezoceramics. The deviation between the theoretical and measured values of charge sensitivity was less than 10%.