TY - JOUR
T1 - Investigation of the piezoelectric and anti-reduction properties of (Ba, Ca) (Ti, Sn, Hf) textured ceramics prepared under low oxygen partial pressure conditions at low sintering temperatures
AU - Tsai, Cheng Che
AU - Liao, Wu Han
AU - Chu, Sheng Yuan
AU - Hong, Cheng Shong
AU - Yu, Mei Chieh
AU - Lin, Yun You
AU - Wei, Zhi Yuan
N1 - Funding Information:
We gratefully acknowledge the financial support provided from the Ministry of Science and Technology (MOST), Taiwan, R.O.C. (Grant numbers: MOST 108-2221-E-272 -001 -MY2 , MOST 109-2218-E-006 -027 ).
PY - 2020
Y1 - 2020
N2 - Multilayer piezoelectric ceramics must be sintered in a reducing atmosphere, preventing oxidation of the inner base metal. Plate-like textured (Ba, Ca)(Ti, Sn, Hf)O3 ceramics with a <001> preferred orientation were successfully developed at a low oxygen partial pressure (PO2:10−8 atm) using a BaTiO3 (BT) template with sintering temperatures < 1300 °C, which is beneficial for multilayer applications using base metal co-firing with ceramics. When adding the 3 wt% BT template, the proposed samples had a Lottgering factor of 84 %, piezoelectric coefficients d33 = 324 pC/N, -d31 = 122 (pC/N), and Qm = 452, and the strain values increased from 0.07 % for the randomly oriented ceramics to 0.115 % at 20 kV/cm for the textured ceramics, confirming that the texturing behavior assisted the grain growth and improved both the soft and hard behaviors and insulation resistance of the proposed lead-free ceramics. These findings make a significant contribution to the production of high-power piezoelectric components.
AB - Multilayer piezoelectric ceramics must be sintered in a reducing atmosphere, preventing oxidation of the inner base metal. Plate-like textured (Ba, Ca)(Ti, Sn, Hf)O3 ceramics with a <001> preferred orientation were successfully developed at a low oxygen partial pressure (PO2:10−8 atm) using a BaTiO3 (BT) template with sintering temperatures < 1300 °C, which is beneficial for multilayer applications using base metal co-firing with ceramics. When adding the 3 wt% BT template, the proposed samples had a Lottgering factor of 84 %, piezoelectric coefficients d33 = 324 pC/N, -d31 = 122 (pC/N), and Qm = 452, and the strain values increased from 0.07 % for the randomly oriented ceramics to 0.115 % at 20 kV/cm for the textured ceramics, confirming that the texturing behavior assisted the grain growth and improved both the soft and hard behaviors and insulation resistance of the proposed lead-free ceramics. These findings make a significant contribution to the production of high-power piezoelectric components.
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U2 - 10.1016/j.jeurceramsoc.2020.12.030
DO - 10.1016/j.jeurceramsoc.2020.12.030
M3 - Article
AN - SCOPUS:85098666238
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
ER -