초음파 진동자용 MnO2가 Doping된 PZT-PSN 세라믹스의 구조 및 압전 특성

차유정; 김창일; 김경준; 정영훈; 이영진; 이해근; 백종후; Yoo-Jeong Cha; Chang-Il Kim; Kyoung-Jun Kim; Young-Hun Jeong; Young-Jin Lee; Haigun Lee; Jong-Hoo Paik

Korean Journal of Materials Research, Vol.19, No.4, 198-202, April, 2009

DOI10.3740/MRSK.2009.19.4.198 Export Citation

초음파 진동자용 MnO2가 Doping된 PZT-PSN 세라믹스의 구조 및 압전 특성

Structural and Piezoelectric Properties of MnO2-Doped PZT.PSN Ceramics for Ultrasonic Vibrator

차유정^{1, 2}, 김창일¹, 김경준², 정영훈¹, 이영진¹, 이해근 ², 백종후^{1, †}

¹요업(세라믹)기술원
²고려대학교

Yoo-Jeong Cha^{1, 2}, Chang-Il Kim¹, Kyoung-Jun Kim², Young-Hun Jeong¹, Young-Jin Lee¹, Haigun Lee², and Jong-Hoo Paik^{1, †}

¹Electronic Components Lab., Korea Institute of Ceramic Eng. & Tech., Seoul 153-801, Korea
²Department of Materials Science and Engineering, Korea University, Seoul 136-701, Korea

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For use in ultrasonic actuators, we investigated the structural and piezoelectric properties of (1 - x)Pb(Zr0.515 Ti0.485)O3 - xPb(Sb1/2Nb1/2)O3 + 0.5 wt% MnO2 [(1 - x)PZT - xPSN + MnO2] ceramics with a variation of x (x = 0.02, 0.04, 0.06, 0.08). All the ceramics, which were sintered at 1250oC for 2 h, showed a typical perovskite structure, implying that they were well synthesized. A homogeneous micro structure was also developed for the specimens, and their average grain size was slightly decreased to 1.3 μm by increasing x to 0.8. Moreover, a second phase with a pyrochlore structure appeared when x was above 0.06, which resulted in the deterioration of their piezoelectric properties. However, the 0.96PZT-0.04PSN + MnO2 ceramics, which corresponds with a morphotropic phase boundary (MPB) composition in the (1 - x)PZT - xPSN + MnO2 system, exhibited good piezoelectric properties: a piezoelectric constant (d33) of 325 pC/N, an electromechanical coupling factor (kp) of 70.8%, and a mechanical quality factor (Qm) of 1779. The specimens with a relatively high curie temperature (Tc) of 305oC also showed a significantly high dielectric constant (εr) value of 1109. Therefore, the 0.96PZT - 0.04PSN + MnO2 ceramics are suitable for use in ultrasonic vibrators.

Keywords:piezoelectric;MPB;ultrasonic;vibrator;ceramic

[References]

Korea Institute of Science and Technology Information, Piezoelectric Ceramics (in Korean), Retrieved December, 2002 from http://register.itfind.or.kr/Report/200301/IITA/ IITA-0745/IITA-0745.pdf (2002)
Uchino K, Piezoelectric and Electrostrictive Actuator, in Proceedings of the 6th IEEE International Symposium on Applications of Ferroelectrics, (Institute of Electrical and Electronics Engineers, Bethlehem, PA, USA, 1986) p.610. (1986)
Paradiso JA, Starner T, IEEE Pervasive Comput., 4(1), 18 (2005). (2005)
Sohn JR, Thesis PD (in Korean), Chungbuk University, Cheongju (1997). (1997)
Kawamura Y, Ohuchi H, Jpn. J. Appl. Phys., 33(9B), 5332 (1994)
Jaffe B, Cook WR, Jaffe H, Piezoelectric Ceramics, p.140, Academic Press, London, (1971). (1971)
Moulson AJ, Herbert JM, Electroceramics, 2nd ed., p.355, Wiley, New York, USA (1990). (1990)
Chen JY, Guo XB, Meng ZY, Mater. Chem. Phys., 75, 136 (1992)
Jaffe B, Roth RS, Mazullo S, J. Appl. Phys., 25(6), 809 (1954)
Kulcsar F, J. Am. Ceram. Soc., 42(1), 49 (1959)
Choi JW, Song KH, Kim HJ, Yoon SJ, Yoo KS, J. Kor. Sens. Soc., 16(2), 120 (2007)
Ouchi H, Bnishida M, Hayakawa S, J. Am. Ceram. Soc., 49, 166 (1966)
Zhong WL, Ferroelectrics Lett., 2, 557 (1984)
EMAS-6001(in Japan), Electronic materials manufactures association of Japan Standards (1997). (1997)
Kassarjian MP, Newhnam RE, Biggers JV, Am. Ceram. Soc. Bull., 64(8), 1103 (1985)
Shrout TR, Halliyal A, Am. Ceram. Soc. Bull., 66(4), 704 (1987)
Fesnko EG, Ferroelectrics, 41, 137 (1982)

[Related Articles]

[1] Korea Institute of Science and Technology Information, Piezoelectric Ceramics (in Korean), Retrieved December, 2002 from http://register.itfind.or.kr/Report/200301/IITA/ IITA-0745/IITA-0745.pdf (2002)

[2] Uchino K, Piezoelectric and Electrostrictive Actuator, in Proceedings of the 6th IEEE International Symposium on Applications of Ferroelectrics, (Institute of Electrical and Electronics Engineers, Bethlehem, PA, USA, 1986) p.610. (1986)

[3] Paradiso JA, Starner T, IEEE Pervasive Comput., 4(1), 18 (2005). (2005)

[4] Sohn JR, Thesis PD (in Korean), Chungbuk University, Cheongju (1997). (1997)

[5] Kawamura Y, Ohuchi H, Jpn. J. Appl. Phys., 33(9B), 5332 (1994)

[6] Jaffe B, Cook WR, Jaffe H, Piezoelectric Ceramics, p.140, Academic Press, London, (1971). (1971)

[7] Moulson AJ, Herbert JM, Electroceramics, 2nd ed., p.355, Wiley, New York, USA (1990). (1990)

[8] Chen JY, Guo XB, Meng ZY, Mater. Chem. Phys., 75, 136 (1992)

[9] Jaffe B, Roth RS, Mazullo S, J. Appl. Phys., 25(6), 809 (1954)

[10] Kulcsar F, J. Am. Ceram. Soc., 42(1), 49 (1959)

[11] Choi JW, Song KH, Kim HJ, Yoon SJ, Yoo KS, J. Kor. Sens. Soc., 16(2), 120 (2007)

[12] Ouchi H, Bnishida M, Hayakawa S, J. Am. Ceram. Soc., 49, 166 (1966)

[13] Zhong WL, Ferroelectrics Lett., 2, 557 (1984)

[14] EMAS-6001(in Japan), Electronic materials manufactures association of Japan Standards (1997). (1997)

[15] Kassarjian MP, Newhnam RE, Biggers JV, Am. Ceram. Soc. Bull., 64(8), 1103 (1985)

[16] Shrout TR, Halliyal A, Am. Ceram. Soc. Bull., 66(4), 704 (1987)

[17] Fesnko EG, Ferroelectrics, 41, 137 (1982)