Cofired magnetoelectric laminate composites

Chee Sung Park; Shashank Priya

doi:10.1111/j.1551-2916.2010.04213.x

Cofired magnetoelectric laminate composites

Chee Sung Park, Shashank Priya

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

We report the structural, electrical, and magnetoelectric (ME) properties of cofired ME laminate composites synthesized using tape-casting approach. Compositions corresponding to 0.2Pb(Zn_1/3Nb_2/3)-0. 8Pb(Zr_0.5Ti_0.5)O₃ [PZNT] and (Ni _0.6Cu_0.2Zn_0.2) Fe₂O₃ [NCZF] were used as piezoelectric and magnetostrictive phases, respectively. In order to reduce the sintering temperature of the ferrite layer, NZF was modified with Cu and thereafter the laminate composite was successfully sintered at 930°C. The interface between PZNT and NCZF was found to exhibit strong bonding with no structural defects, which was correlated with cross diffusion of ions. The laminate composite was found to exhibit the ME coefficient of 82 mVÂ·(cmÂ·Oe)^-1 at H_dc=67 Oe and was able to detect a small DC magnetic field of 1 μT under H_ac=1 Oe at 1 kHz. This sensitivity was attributed to the effectiveness of elastic coupling in the laminate structure. Fabrication of cofired laminate composites with high magnetic field sensitivity will lead to their wide-scale application.

Original language	English (US)
Pages (from-to)	1087-1095
Number of pages	9
Journal	Journal of the American Ceramic Society
Volume	94
Issue number	4
DOIs	https://doi.org/10.1111/j.1551-2916.2010.04213.x
State	Published - Apr 2011

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1551-2916.2010.04213.x

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abstract = "We report the structural, electrical, and magnetoelectric (ME) properties of cofired ME laminate composites synthesized using tape-casting approach. Compositions corresponding to 0.2Pb(Zn1/3Nb2/3)-0. 8Pb(Zr0.5Ti0.5)O3 [PZNT] and (Ni 0.6Cu0.2Zn0.2) Fe2O3 [NCZF] were used as piezoelectric and magnetostrictive phases, respectively. In order to reduce the sintering temperature of the ferrite layer, NZF was modified with Cu and thereafter the laminate composite was successfully sintered at 930°C. The interface between PZNT and NCZF was found to exhibit strong bonding with no structural defects, which was correlated with cross diffusion of ions. The laminate composite was found to exhibit the ME coefficient of 82 mV{\^A}·(cm{\^A}·Oe)-1 at Hdc=67 Oe and was able to detect a small DC magnetic field of 1 μT under Hac=1 Oe at 1 kHz. This sensitivity was attributed to the effectiveness of elastic coupling in the laminate structure. Fabrication of cofired laminate composites with high magnetic field sensitivity will lead to their wide-scale application.",

author = "Park, {Chee Sung} and Shashank Priya",

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AB - We report the structural, electrical, and magnetoelectric (ME) properties of cofired ME laminate composites synthesized using tape-casting approach. Compositions corresponding to 0.2Pb(Zn1/3Nb2/3)-0. 8Pb(Zr0.5Ti0.5)O3 [PZNT] and (Ni 0.6Cu0.2Zn0.2) Fe2O3 [NCZF] were used as piezoelectric and magnetostrictive phases, respectively. In order to reduce the sintering temperature of the ferrite layer, NZF was modified with Cu and thereafter the laminate composite was successfully sintered at 930°C. The interface between PZNT and NCZF was found to exhibit strong bonding with no structural defects, which was correlated with cross diffusion of ions. The laminate composite was found to exhibit the ME coefficient of 82 mVÂ·(cmÂ·Oe)-1 at Hdc=67 Oe and was able to detect a small DC magnetic field of 1 μT under Hac=1 Oe at 1 kHz. This sensitivity was attributed to the effectiveness of elastic coupling in the laminate structure. Fabrication of cofired laminate composites with high magnetic field sensitivity will lead to their wide-scale application.

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Cofired magnetoelectric laminate composites

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