The 0.2Pb(Zn1/3Nb2/3)O3-0.8Pb(Zr0.5Ti0.5)O3 (0.2PZN-0.8PZT) ceramic system exhibits excellent piezoelectric properties; however, its high sintering temperature (~1,250°C) causes severe PbO volatilization, increases processing cost, and limits co-firing with low-melting-point electrodes in multilayer devices. In this study, LiBiO2 was introduced as a sintering aid to enable lowtemperature densification of 0.2PZN–0.8PZT ceramics. The optimal composition of x = 0.3 mol% sintered at 1,050°C achieved d33 = 367 pC/N, kp = 0.54, and εT33/ε0 = 1,643. The Curie temperature was also enhanced to 347.8°C, compared with 297.2°C for the reference specimen sintered at 1,250°C. These results demonstrate that LiBiO2 addition enables a 200°C reduction in sintering temperature while maintaining piezoelectric performance and improving thermal stability.
Two-Stage De-binding for Cu Electrode Application to PZT-PZNN Multilayer Actuator Sung Cheul Hong, Zeehoon Park, Dong-Hun Yeo, Hyo-Soon Shin, Sahn Nahm Transactions on Electrical and Electronic Materials.2022; 23(4): 348. CrossRef
Piezoelectric properties of paint sensor according to piezoelectric materials Dae-Hyun Han, Lae-Hyong Kang Functional Composites and Structures.2020; 2(2): 025002. CrossRef
Physical properties of inorganic PMW-PNN-PZT ceramics Sang-Hoon Sin, Ju-hyun Yoo, Yong-Jin Kim, Sam-ki Baek, Jun-Soo Ha, Chung-Han No, Hyun-Seon Song, Dong-Chan Shin IOP Conference Series: Materials Science and Engineering.2015; 87: 012099. CrossRef
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