Rheology and physical properties of Bi0.5(Na0.82K0.18)0.5TiO3 piezoelectric thick films by aqueous gel-tape casting process

Domain switching contribution to the ferroelectric, fatigue and piezoelectric properties of lead-free Bi0.5(Na0.85K0.15)0.5TiO3 films

“…[7][8][9] Among BNT-based solid solutions, Bi 0.5 Na 0.5 -TiO 3 -Bi 0.5 K 0.5 TiO 3 (BNT-BKT) systems have been received a great deal of attention due to its piezoelectric properties in the rhombohedral-tetragonal morphotropic phase boundary at optimal composition of Bi 0.5 (Na 0.85 K 0.15 ) 0.5 TiO 3 (BKNT15). [10][11][12] With the development of micro-electro-mechanical, lm devices strongly need to be developed. Therefore, this work aims to prepare single-phase BKNT15 lms and investigate crystal structure, domain structure, ferroelectric, piezoelectric, leakage current, and fatigue properties.…”

Sintering of large‐sized and near‐stoichiometric BNT ceramics with enhanced dielectric and electrostrictive properties

“…Although BNT is a promising piezoelectric ceramic, fabrication of large-sized BNT ceramics is not well studied yet. 17 Xiong et al and Zhou et al have fabricated the BNT ceramics with the size of a few centimeters by a gelcasting method with acrylamide (AM) and N,N′methylenebisacrylamide (MBAM) as gelation system and showed the dielectric properties comparable to that from dry pressing method. 18,19 However, further development of the gelcasting technique to make the BNT ceramic size over 10 cm is never reported yet.…”

“…Ceramics with size of ∼10–15 cm are needed to realize large stroke. Although BNT is a promising piezoelectric ceramic, fabrication of large‐sized BNT ceramics is not well studied yet 17 . Xiong et al.…”

Epitaxial growth of (Bi,K)TiO3-Bi(Mg,Ti)O3(001) films and their ferroelectric and piezoelectric properties

“…[10][11][12][13][14][15] Previous research had been conducted on BKT-based thin film solid solutions with BiFeO 3 and (Bi 0.5 Na 0.5 )TiO 3 . [16][17][18][19][20] These materials at the MPB composition had been investigated with regard to further improving their piezoelectric properties. We focused on the (Bi 0.5 K 0.5 )TiO 3 -Bi(Mg 0.5 Ti 0.5 )O 3 system, for which nothing had been reported with regard to thin film solid solutions.…”