Bonding Strength of Conductive Inner-Electrode Layers in Piezoelectric Multilayer Ceramics

Yiping Wang; Ying Yang; Bingjin Zheng; Jing Chen; Jinyi Yao; Yun Sheng

doi:https://doi.org/10.4313/TEEM.2017.18.4.181

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자료유형: 학술저널

저자정보: Yiping Wang (Nanjing University of Aeronautics and Astronautics) Ying Yang (Nanjing University of Aeronautics and Astronautics) Bingjin Zheng (Nanjing University of Aeronautics and Astronautics) Jing Chen (Nanjing University of Aeronautics and Astronautics) Jinyi Yao (Nanjing University of Aeronautics and Astronautics) Yun Sheng (Nanjing University of Aeronautics and Astronautics)

저널정보: 한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제18권 제4호

발행연도: 2017.8

수록면: 181 - 184 (4page)

DOI: https://doi.org/10.4313/TEEM.2017.18.4.181

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Multilayer ceramics in which piezoelectric layers of 0.90 Pb(Zr0.48Ti0.52)O3 -0.05 Pb(Mn1/3Sb2/3)O3 -0.05 Pb(Zn1/3Nb2/3)O3(0.90PZT-0.05PMS-0.05PZN) stack alternately with silver electrode layers were prepared by an advanced low-temperatureco-fired ceramic (LTCC) method. The electrical properties and bonding strength of the multilayers were associated with theinterface morphologies between the piezoelectric and silver-electrode layers. Usually, the inner silver electrodes are fabricatedby sintering silver paste in multi-layer stacks. To improve the interface bonding strength, piezoelectric powders of0.90PZT-0.05PMS-0.05PZN with an average particle size of 23 μm were added to silver paste to form a gradient interface. SEMobservation indicated clear interfaces in multilayer ceramics without powder addition. With the increase of piezoelectricpowder addition in the silver paste, gradient interfaces were successfully obtained. The multilayer ceramics with gradientinterfaces present greater bonding strength as well as excellent piezoelectric properties for 30~40 wt% of added powder. Onthe other hand, over addition greatly increased the resistance of the inner silver electrodes, leading to a piezoelectric behaviorlike that of bulk ceramics in multilayers.

#Piezoelectric #Multilayer ceramics #LTCC #Bonding strength

참고문헌 (14)

참고문헌 신청

B. Jaffe / 1971 / Piezoelectric Ceramics / Academic Press :562~563

K. Uchino / 2000 / Ferroelectric Devices / Marcel Dekker :74

L. E. Cross / 1987 / Ferroelectrics 76:241

B. Robert / 1997 / Ceramic Industry :889

Seung-Eek Park / 1997 / Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals / Journal of Applied Physics 82(4):1804~1811

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