High Energy Density Piezoelectric Ceramics for Energy Harvesting Devices
- Title
- High Energy Density Piezoelectric Ceramics for Energy Harvesting Devices
- Author
- 성태현
- Issue Date
- 2011-11
- Publisher
- Wiley-Blackwell
- Citation
- Journal of American Ceramic Society, 2011, 94(11), P.3629-3631
- Abstract
- The ceramics, (0.65 + y)Pb(Zr0.47Ti0.53)-(0.35 - y)Pb[(Ni1-x Zn-x)(1/3)Nb-2/3]O-3 have a morphotropic phase boundary (MPB) of pseudo-cubic and tetragonal structures. Their epsilon(T)(33)/epsilon(0) value considerably decreased on the pseudo-cubic side of the MPB composition, but the d(33) and k(p) slowly decreased on both sides of the MPB. Therefore, the maximum transduction coefficient (d(33) * g(33)) was obtained from the composition on the pseudo-cubic side of the MPB, because g33 is given by d(33)/epsilon(T)(33). This result could be applied to other systems containing an MPB of pseudo-cubic and tetragonal structures. Furthermore, a d(33) * g(33) value of 20 056 3 10(-15) m(2)/N, which is the highest value reported so far for polycrystalline ceramics, was obtained from the 0.68Pb(Zr0.47Ti0.53)O-3-0.32Pb(Ni0.6Zn0.4)(1/3)Nb2/3O3 ceramic.
- URI
- https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1551-2916.2011.04817.x
- ISSN
- 0002-7820; 1551-2916
- DOI
- 10.1111/j.1551-2916.2011.04817.x
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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