Improved Piezoelectric Properties of (Bi, Sc)O-3-(Pb, Ti)O-3 Ceramics Based on the Two-Step Sintering Process
- Authors
- Ji, Jae-Hoon; Kim, Dae Hyun; Choi, Byeong Guk; Lee, Kul; Kim, Chan Woo; Lee, Sang-Kwon; Ko, Young-Ho; Cho, Kyung-Ho; Koh, Jung-Hyuk
- Issue Date
- Jun-2019
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Piezoelectric Ceramics; (Bi, Sc)O-3-(Pb, Ti)O-3; Two-Step Sintering Process
- Citation
- JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS, v.14, no.6, pp 741 - 745
- Pages
- 5
- Journal Title
- JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS
- Volume
- 14
- Number
- 6
- Start Page
- 741
- End Page
- 745
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/32752
- DOI
- 10.1166/jno.2019.2627
- ISSN
- 1555-130X
1555-1318
- Abstract
- The relatively lower lead contents in (Bi, Sc)O-3-(Pb, Ti)O-3 ceramic is the potential piezoelectric material for actuator or sensor applications. (Bi, Sc)O-3-(Pb, Ti)O-3 ceramic has a high piezoelectric charge coefficient of 473 pC/N and high Curie temperature of 382 degrees C. For the dielectric properties, (Bi, Sc)O-3-(Pb, Ti)O-3 ceramic has also high relative dielectric permittivity of 1200 at 1 kHz range. It seems that (Bi, Sc)O-3-(Pb, Ti)O-3 ceramic has excellent piezoelectric and dielectric properties. However, the Bi2O3 contents in the (Bi, Sc)O-3-(Pb, Ti)O-3 ceramic have a relatively lower sintering temperature around 817 degrees C. Therefore, to avoid volatilization of Bi contents, a sintering process with a lower temperature should be considered. To lower the sintering temperature, a two-step sintering process was employed in this research. Increased the sintering time under deceased sintering temperature can improve the sintering process. In this research, by optimizing a two-step sintering process, the piezoelectric properties were enhanced compared with those of conventionally sintered (Bi, Sc)O-3-(Pb, Ti)O-3 ceramics.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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