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http://dx.doi.org/10.4313/JKEM.2006.19.8.707

Piezoelectric Properties in ZnO Dopped (Na,K)NbO3 Ceramics  

Ryu Sung-Lim (충주대학교 신소재공학과/친환경 에너지변환, 저장 소재 및 부품개발 연구센터)
Kweon Soon-Yong (충주대학교 신소재공학과/친환경 에너지변환, 저장 소재 및 부품개발 연구센터)
Ur Soon-Chul (충주대학교 신소재공학과/친환경 에너지변환, 저장 소재 및 부품개발 연구센터)
Kim Si-Chul (충주대학교 신소재공학과/친환경 에너지변환, 저장 소재 및 부품개발 연구센터)
Yoo Ju-Hyun (세명대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.8, 2006 , pp. 707-711 More about this Journal
Abstract
ZnO was doped up to 0.3 wt% for improving the electrical properties of lead-free $[Li_{0.04}(Na_{0.44}Ko_{0.52})-(Nb_{0.86}\;Ta_{0.10}\;Sb_{0.04})]O_3$ piezoelectric ceramics. The ceramics were fabricated with the conventional sintering processes. Crystal structure of the samples was tetragonal phase regardless of ZnO amount. However, the piezoelectric properties were varied with the ZnO amount. The electro-mechanical coupling factor $(k_p)$ was with the ZnO amount up to 0.2 wt% but decreased with the further addition. the maximum value of $k_p$ was 0.475. Density, piezoelectric charge constant and relative dielectric constant was also showed maximum value at 0.2 wt%. The maximum values are $4.75g/cm^3$, 275 pC/N, 1403, respectively. In contrast, the mechanical quality factor $(Q_m)$ was not varied with increasing the ZnO addition up to 0.2 wt% but rapidly increased at 0.3 wt%.
Keywords
Lead-free piezoelectric ceramics; RTGG(Reactive template grain growth); Hot pressing; SPS(Spark plasma sintering); Pseudo-tetragonal phase;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 R. Wang, R. Xie, T. Sekiya, and Y. Shimoyo, 'Fabrication and characterization of potassium sodium niobate piezoelectric ceramics by spark plasma sintering method', Materials Research Bulletin, Vol. 39, p. 1709, 2004   DOI   ScienceOn
2 M. Matsubara, T. Yamaguchi, K. Kikuta, and S. Hirano, 'Sintering and piezoelectric properties of potassium sodium niobate ceramics with newly developed sintering aid', Jpn. J. Appl. Phys., Vol. 44, No. lA, p. 258, 2005   DOI
3 Y. Saito, H. Takao, T. Tani, T. Nonoyama, K. Takatori, T. Homma, T. Nagaya, and M. Nakamura, 'Lead-free piezoceramics', Nature, Vol. 43214, p. 84, 2004
4 E. Ringgaard and T. Wurlitzer, 'Lead-free piezoceramics based on alkali niobates', J. Europ, Cera. Soc., Vol. 25, Iss. 12, p. 2701, 2005   DOI   ScienceOn
5 K. Kakimoto, I. Masuda, and H. Ohsato, 'Solid-solution structure and piezoelectric property of $KNbO_3$ ceramics doped with small amounts of elements', Jpn. J. Appl. Phys., Vol. 43, No. 9B, p. 6706, 2004   DOI
6 J. H. Yoo, D. O. Oh, Y. H. Jeong, J. H. Hong, and M. Y. jung, 'Dieiectric and piezoeiectric characteristic of lead-free $Bi_{0.5}(Na_{0.84}K_{0.16})_{0.5} TiO_3$ ceramics substituted with Sr', Materials Letters, Vol. 58, p. 3831, 2004   DOI   ScienceOn
7 민석규, 오동언, 윤광희, 류주현, 박창엽, 김종선, '$Pb(La,Ce)TiO_3$계 세라믹스의 길이와 두께비(l/t)에 따른 공진특성', 전기전자재료학회논문지, 14권, 9호, p. 720, 2001
8 Y. Guo, K. Kakimoto, and H. Ohsato, '$(Na_{0.5}K_{0.5})NbO_3-LiTaO_3$ lead free piezoelectric ceramics', Materials Letters, Vol. 59, Iss. 2-3, p. 241, 2005   DOI   ScienceOn
9 S. H. Park, C. W. Ahn, S. Nahm, and J. S. Song, 'Microstructure and piezoelectric properties of ZnO-added $(Na_{0.5}K_{0.5})NbO_3$ ceramics', Jpn. J. Appl. Phys., Vol. 43, No. 8B, p. L1072, 2004   DOI   ScienceOn
10 류주현, 오동언, 'PNW-PMN-PZT 세라믹스를 이용한 윤곽진동모드 압전트랜스포머의 전기적 특성', 전기전자재료학회논문지, 15권, 7호, p. 602, 2002
11 H. Birol, D. Damjanovic, and N. Setter, 'Preparation and characterization of $(K_{0.5}Na_{0.5})NbO_3$ ceramics', J. Europ. Cera. Soc., In press, Vol. 25, Iss. 10, p. 1983, 2005
12 T. Wada, K. Toyoike, Y. Imanaka, and Y. Matsuo, 'Dielectric and piezoelectric properties of $(A_{0.5}Bi_{0.5})TiO_3-ANbO_3(A=Na,K)$) Systems', Jpn. J. Appl. Phys., Vol. 40, No. 9B, p. 5703, 2001   DOI