Abstract
A novel lead-free excellent transmittance electro-optic ceramics (1-x)(K0.5Na0.5)NbO3-xLaBiO3 (KNN-LB, x = 0.000, 0.005, 0.010, 0.015, 0.020, 0.025, 0.040, 0.060) were fabricated by traditional pressureless ceramics processing procedure. The effects of LaBiO3 dopant concentration x on the microstructure, phase transition, optical property, and electrical properties were studied systematically. The X-ray diffraction results indicated that the KNN-LB ceramics with x ≥ 0.025 have the pseudocubic phase. The morphology, density, and microstructure of the KNN-LB ceramics were characterized by scanning electronic microscopy and optical microscopy. In particular, the KNN-LB ceramics (0.05 mm thickness) with x = 0.025 exhibited the highest transmittance of 74.00% in the visible spectrum comparable to the 72.00% transmittance of the lead lanthanum zirconate titanate (PLZT 9/65/35 of 0.127 mm thickness). In addition, the related mechanism of transparency variation induced by phase transition and grain size modulation were discussed thoroughly. Finally, the dielectric and ferroelectric properties of as-prepared KNN-LB ceramics were also investigated to further clarify the relationship between transparency and relaxor behavior.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2055-2062 |
| Number of pages | 8 |
| Journal | Journal of the American Ceramic Society |
| Volume | 99 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 1 2016 |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Geology
- Geochemistry and Petrology
- Materials Chemistry
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Excellent Transmittance Induced Phase Transition and Grain Size Modulation in Lead-Free (1-x)(K0.5Na0.5)NbO3-xLaBiO3 Ceramics. / Yang, Zupei; Yang, Zhenyu; Zhang, Xiaoshuai; Yang, Dong; Yang, Bian; Chao, Xiaolian; Wei, Lingling.
In: Journal of the American Ceramic Society, Vol. 99, No. 6, 01.06.2016, p. 2055-2062.Research output: Contribution to journal › Article
TY - JOUR
T1 - Excellent Transmittance Induced Phase Transition and Grain Size Modulation in Lead-Free (1-x)(K0.5Na0.5)NbO3-xLaBiO3 Ceramics
AU - Yang, Zupei
AU - Yang, Zhenyu
AU - Zhang, Xiaoshuai
AU - Yang, Dong
AU - Yang, Bian
AU - Chao, Xiaolian
AU - Wei, Lingling
PY - 2016/6/1
Y1 - 2016/6/1
N2 - A novel lead-free excellent transmittance electro-optic ceramics (1-x)(K0.5Na0.5)NbO3-xLaBiO3 (KNN-LB, x = 0.000, 0.005, 0.010, 0.015, 0.020, 0.025, 0.040, 0.060) were fabricated by traditional pressureless ceramics processing procedure. The effects of LaBiO3 dopant concentration x on the microstructure, phase transition, optical property, and electrical properties were studied systematically. The X-ray diffraction results indicated that the KNN-LB ceramics with x ≥ 0.025 have the pseudocubic phase. The morphology, density, and microstructure of the KNN-LB ceramics were characterized by scanning electronic microscopy and optical microscopy. In particular, the KNN-LB ceramics (0.05 mm thickness) with x = 0.025 exhibited the highest transmittance of 74.00% in the visible spectrum comparable to the 72.00% transmittance of the lead lanthanum zirconate titanate (PLZT 9/65/35 of 0.127 mm thickness). In addition, the related mechanism of transparency variation induced by phase transition and grain size modulation were discussed thoroughly. Finally, the dielectric and ferroelectric properties of as-prepared KNN-LB ceramics were also investigated to further clarify the relationship between transparency and relaxor behavior.
AB - A novel lead-free excellent transmittance electro-optic ceramics (1-x)(K0.5Na0.5)NbO3-xLaBiO3 (KNN-LB, x = 0.000, 0.005, 0.010, 0.015, 0.020, 0.025, 0.040, 0.060) were fabricated by traditional pressureless ceramics processing procedure. The effects of LaBiO3 dopant concentration x on the microstructure, phase transition, optical property, and electrical properties were studied systematically. The X-ray diffraction results indicated that the KNN-LB ceramics with x ≥ 0.025 have the pseudocubic phase. The morphology, density, and microstructure of the KNN-LB ceramics were characterized by scanning electronic microscopy and optical microscopy. In particular, the KNN-LB ceramics (0.05 mm thickness) with x = 0.025 exhibited the highest transmittance of 74.00% in the visible spectrum comparable to the 72.00% transmittance of the lead lanthanum zirconate titanate (PLZT 9/65/35 of 0.127 mm thickness). In addition, the related mechanism of transparency variation induced by phase transition and grain size modulation were discussed thoroughly. Finally, the dielectric and ferroelectric properties of as-prepared KNN-LB ceramics were also investigated to further clarify the relationship between transparency and relaxor behavior.
UR - http://www.scopus.com/inward/record.url?scp=84977962776&partnerID=8YFLogxK
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U2 - 10.1111/jace.14174
DO - 10.1111/jace.14174
M3 - Article
AN - SCOPUS:84977962776
VL - 99
SP - 2055
EP - 2062
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 6
ER -