Low-temperature sintering of lead-free Bi1/2(Na,K)1/2TiO3-based electrostrictive ceramics with CuO addition

High strain in (Bi1/2Na1/2)0.935Ba0.065TiO3–Sr3FeNb2O9 lead-free ceramics with giant piezoresponse

“…28,29 Similar peak shis were also reported in CaTiO 3 -doped BNT ceramics and CuO modied BNKT ceramics. 30,31 Fig. 2 shows SEM micrographs of various SFN doped BNBT ceramics.…”

Comparative Study of Conventional and Microwave Sintering of Large Strain Bi-Based Perovskite Ceramics

“…The large strain observed at the normal and relaxor ferroelectric phase boundary was recently found to be closely related to the nanoscale composite of the normal and relaxor ferroelectric phases [30]. In particular, BaZrO 3 -modified Bi 1/2 (Na,K) 1/2 TiO 3 (BNKT) was found to exhibit not only relatively large strains (above 400 pm/V) but also small strain hysteresis, when compared with other bismuthsodium-titanate-based compounds [32][33][34][35]. These advantages make it a promising material for a wide range of precision mechatronic systems, such as fuel injectors for diesel and gasoline engines, position control systems for precision stages, and electronic motors, where low voltage driving is strongly required.…”