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High‐temperature multilayer actuators based on CuO added BiScO 3 –PbTiO 3 piezoceramics and Ag electrodes
Author(s) -
Qaiser Muhammad Adnan,
Ma XiaoZi,
Ma Rongtian,
Ali Wajid,
Xu Xijun,
Yuan Guoliang,
Chen Lang
Publication year - 2019
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.16435
Subject(s) - materials science , actuator , ceramic , sintering , electrode , composite material , voltage , melting point , optoelectronics , electrical engineering , chemistry , engineering
High‐temperature multilayer actuators based on Cu doping 0.367BiScO 3 –0.633PbTiO 3 ceramic slices and Ag electrodes were prepared by low‐temperature co‐firing technology. The 0.3 wt% CuO addition has effectively reduced the sintering temperature of the ceramic from ~1080 to 930°C, thus the multilayer actuator were sintered at 930°C which is lower than the Ag melting point, that is, 961°C. The 4.3 mm thick multilayer actuator is composed of a series of ~44‐μm‐thick ceramic slices and ~2‐μm‐thick Ag electrodes. As a result, a ≥0.13% strain with nm‐scale preciseness can be produced in the actuator by 200 V driving voltage not only at room temperature but also at a high temperature up to 200°C. This actuator is essential for industrial machinery that requires nm‐scale position control at 20‐200°C.