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http://dx.doi.org/10.4313/JKEM.2006.19.11.1025

Effect of Na2CO3 Addition on Piezoelectric Properties in (Na0.5K0.5)NbO3-LiTaO3 Ceramics  

Kim, Mi-Soo (한국전기연구원 전자기소자연구그룹)
Oh, Seok (창원대학교 세라믹공학과)
Lee, Dae-Su (한국전기연구원 전자기소자연구그룹)
Park, Eon-Cheol (한국전기연구원 전자기소자연구그룹)
Jeong, Soon-Jong (한국전기연구원 전자기소자연구그룹)
Song, Jae-Sung (한국전기연구원 전자기소자연구그룹)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.11, 2006 , pp. 1025-1028 More about this Journal
Abstract
Dense $0.95(Na_{0.5}K_{0.5})NbO_3-0.05LiTaO_3$ (NKN-5LT) ceramics were developed by conventional sintering process. Sintering temperature was lowered by adding $Na_2CO_3$ as a sintering aid. The electrical properties of NKN-5LT ceramics were investigated as a function of $Na_2CO_3$ concentration. When the sample sintered at $1000^{\circ}C$ for 4 h with the addition of 1 mol% $Na_2CO_3$, electro-mechanical coupling factor $(k_p)$ and piezoelectric coefficient $(d_{33})$ of NKN-5LT ceramics were found to reach the highest values of 0.43 and 190 pC/N, respectively.
Keywords
Microstructure; Piezoelectric; Ceramics; Lead-free; Sodium-potassium niobate;
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1 Y. Guo, K. Kakimoto, and H. Ohsato, '$(Na_{0.5}K_{0.5})NbO_3-LiTaO_3$ lead-free piezoelectric ceramics', Mater. Lett., Vol. 59, p. 241 2005   DOI   ScienceOn
2 E. E. Underwood, 'Quotation metallography', ASM Metal Handbook, Vol. 9, p. 123, 1985
3 Y.-I. Jung, S.-Y. Choi, and S.-J. L. Kang, 'Grain-growth behavior during stepwise sintering of barium titanate in hydrogen gas and air', J. Am. Ceram. Soc., Vol. 86, p. 2228, 2003   DOI   ScienceOn
4 S.-Y. Choi and S.-J. L. Kang, 'Sintering kinetics by structural transition at grain boundaries in barium titanate', Acta Mater., Vol. 52, p. 2937, 2004   DOI   ScienceOn
5 B. K. Lee, S. Y. Chung, and S.- J. L. Kang, 'Grain boundary faceting and abnormal grain growth in $BaTiO_3$', Acta Mater., Vol. 48, p. 1575, 2000   DOI   ScienceOn
6 C. W. Park and D. Y. Yoon, 'Abnormal grain growth in alumina with anorthite liquid and the effect of MgO addition', J. Am. Ceram. Soc., Vol. 85, p. 1585, 2002
7 R. Wang, R. Xie, T. Sekiya, Y. Shirnojo, Y. Akimune, N. Hirosaki, and M. Itoh, 'Piezoelectric properties of spark-plasmasintered $(Na_{0.5}K_{0.5})NbO_3-PbTiO_3$ ceramics', Jpn. J. Appl. Phys., Vol. 41, p. 7119, 2002   DOI
8 K. Kakimoto, I. Masuda, and H. Ohsato, 'Ferroelectric and piezoelectric properties of $KNbO_3$ ceramics containing small amounts of $LaFeO_3$', Jpn. J. Appl. Phys., Vol. 42, p. 6102, 2003   DOI
9 B. Jaffe, W. R. Cook, and J. Jaffe, 'Piezoelectric Ceramics', Academic Press, New York, p. 135, 1971
10 B. Jaffe, R. S. Roth, and S. Marzullo, 'Piezoelectric properties of lead zirconate lead titanate solid-solution ceramics', J. Appl. Phys., Vol. 25, p. 809, 1954   DOI
11 R. E. Jaeger and L. Egerton, 'Hot pressing of potassium-sodium niobates', J. Am. Ceram. Soc., Vol. 45, p. 209, 1962   DOI
12 G. H. Haertling, 'Properties of hot-pressed ferroelectric alkali niobate ceramics', J. Am. Ceram. Soc., Vol. 50, p. 329, 1967   DOI
13 M.-S. Kim, J. G. Fisher, H.-Y. Lee, and S.- J L. Kang, 'Grain growth control and solid-state crystal growth by $Li_2O/PbO$ addition and dislocation introduction in the PMN - 35PT system', J. Am. Ceram. Soc., Vol. 89, p. 1237, 2006   DOI   ScienceOn
14 A. Castro, B. Jimenez, T. Hungria, A. Moure, and L. Pardo, 'Sodium niobate ceramics prepared by mechanical activation assisted methods', J. Eur. Ceram. Soc., Vol. 24, p. 941 2004   DOI   ScienceOn
15 J.-B. Lee, T.-M. Hur, H.-Y. Lee, K. Choi, and D.-Y. Kim, 'Effect of excess PbO on grain growth and densification of $(65)Pb(Mg_{1/3}Nb_{2/3})O_3-(35)PbTiO_3$ ceramics', J. Kor. Ceram. Soc., Vol. 37, p. 673, 2000
16 S. Tashiro, H. Nagarnatsu, and K. Nagata, 'Sinter ability and piezoelectric properties of $KNbO_3$ ceramics after substituting Pb and Na for K', Jpn. J. Appl. Phys., Vol. 41, p. 7113, 2002