(1-x)(Bi,Na)TiO3-x (Ba,Sr)TiO3 lead-free piezoelectric ceramics for piezoelectric energy harvesting
- Authors
- Kwon, Young-Hoon; Shin, Dong-Jin; Koh, Jung-Hyuk
- Issue Date
- Apr-2015
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- lead-free; BNT; Energy harvesting
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.66, no.7, pp 1067 - 1071
- Pages
- 5
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 66
- Number
- 7
- Start Page
- 1067
- End Page
- 1071
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/19075
- DOI
- 10.3938/jkps.66.1067
- ISSN
- 0374-4884
1976-8524
- Abstract
- Lead-free piezoelectric (1 - x)(Bi0.5Na0.5)TiO3-x (Ba0.5Sr0.5)TiO3 (x = 0, 0.03, 0.06, 0.08, 0.12) ceramics were fabricated by using a conventional ceramic sintering method. The piezoelectric properties of (1 - x)(Bi0.5Na0.5)TiO3-x (Ba0.5Sr0.5)TiO3 lead-free ceramics were investigated. The crystallinity and the microstructure of (1 - x)(Bi0.5Na0.5)TiO3-x (Ba0.5Sr0.5)TiO3 ceramics were observed employing X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The morphotropic phase boundary (MPB) of the rhombohedral and the tetragonal phases was detected at x = 0.08 by using the XRD patterns. In addition, the piezoelectric and the dielectric properties of (1 - x)(Bi0.5Na0.5)TiO3-x (Ba0.5Sr0.5)TiO3 were characterized. A piezoelectric coefficient d33 of 118 pC/N, an electromechanical coupling factor k (p) of 35.17%, a generated output power of 17.15 nW, and a figure of merit of 2.85 pm(2)/N were obtained.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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