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Electrical properties of (Na0.5K0.5)NbO3-(Sr0.5Ca0.5)TiO3 ceramics with the variation of sintering temperature
- Authors
- Yeo, Jin-Ho; Lee, Sung-Gap; Lee, Tea-Ho; Jung, Hye-Rin
- Issue Date
- Oct-2013
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- NKN; SCT; Piezoelectric; Dielectric constant
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.14, no.5, pp 648 - 651
- Pages
- 4
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 14
- Number
- 5
- Start Page
- 648
- End Page
- 651
- ISSN
- 1229-9162
2672-152X
- Abstract
- Piezoelectric 0.94(Na0.5K0.5)NbO3-0.06(Sr0.5Ca0.5)TiO3 ceramics were fabricated by the mixed-oxide method and the structural and dielectric properties was investigated with the variation of the sintering temperature. All specimens were crystallized in the perovskite single phase without any formation of a second phase such as pyrochlore. The specimen sintered at 1200 degrees C showed the highest relative density of 98%. Electromechanical coupling factor, relative dielectric constant and dielectric loss of NKN-SCT specimens sintered at 1200 degrees C were 0.25, 2028 and 0.03, respectively. Curie temperature increased with increasing the sintering temperature, and the value of the specimen sintered at 1200 degrees C was 345 degrees C.
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