Low temperature sintering and magnetoelectric properties of laminated BaTiO3/BiY2Fe5O12 composites

Wang, Fen; Zhang, Ge; Yang, Haibo; Liu, Miao; Yang, Yanyan

doi:10.1016/j.jallcom.2015.01.127

Cited by 26 publications

(4 citation statements)

References 21 publications

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“…Moreover, as expected the ME coefficient increases with the YIG content. Recently, Wang et al showed 0‐3 type BiY 2 Fe 5 O 12 –BT composites to exhibit an ME as high as 0.24 mV cm −1 Oe −1 . They also fabricated 2‐2 type composites and measured a ME of 14.36 mV cm −1 Oe −1 at 600 Oe for a composite with 40 wt% of BiY 2 Fe 5 O 12 in BT.…”

Section: Discussionmentioning

confidence: 99%

Yttrium Iron Garnet/Barium Titanate Multiferroic Composites

et al. 2016

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Dense multiferroic 0‐3 type composites encompassing BaTiO3 and Y3Fe5O12 were fabricated by the solid‐state reaction method. X‐ray diffraction data combined with scanning electron microscopy imaging show virtual immiscibility between the two phases, with the Y3Fe5O12 ferrimagnetic phase well dispersed in the tetragonal BaTiO3 ferroelectric matrix. Raman spectroscopy analyses corroborate the polar nature of the BaTiO3 matrix in composites with a Y3Fe5O12 content as great as 40 wt%. Ferrimagnetism is detected in all composites and no additional magnetic phases are distinguished. Although these dense ceramics can be electrically poled, they exhibit a very weak magnetoelectric response, which slightly increases with Y3Fe5O12 content.

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Section: Discussionmentioning

confidence: 99%

Yttrium Iron Garnet/Barium Titanate Multiferroic Composites

et al. 2016

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“…Moreover, a peak ME coefficient of 152 mV cm −1 Oe was obtained at an applied dc bias magnetic field of 1000 Oe. In a similar pursuit of fabrication of lead-free ME composites, Yang et al [64] and Wang et al [65] synthesized BaTiO 3 -CFO-BaTiO 3 and BaTiO 3 -BiY 2 Fe 5 O 12 -BaTiO 3 layered structures respectively, using a similar procedure as employed by Islam et al however, the final sintering was carried out at 1100 • C for 2 h. A maximum transverse ME coefficient of 135 mV cm −1 Oe and 14.36 mV cm −1 Oe was obtained at an applied dc bias field of 2600 Oe and 600 Oe, respectively for the former and the latter. Later, to increase the Curie temperature of BTO based ceramic, BTO/BNT-CFO-BTO/BNT composite was synthesized under the same conditions, which yielded the highest quasi-static ME coefficient of 113.1 mV cm −1 Oe at around 1100 Oe [66].…”

Section: Co-firing Methodsmentioning

confidence: 99%

Epoxy-free fabrication techniques for layered/2-2 magnetoelectric composite: a review

Kumar

Arockiarajan²

2022

Smart Mater. Struct.

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Layered or 2-2 conﬁguration magnetoelectric (ME) composites have gained signiﬁcant interest in the last few decades owing to their ease of fabrication and relatively high ME output realizable at room temperature. Conventionally, layered ME composites are fabricated by bonding the constituent magnetostrictive and piezoelectric layers via an epoxy or adhesive. Thus, the epoxied interface acts as the medium of strain transfer between the constituent layers resulting in the ME effect. However, the presence of epoxy makes the composite prone to limitations such as reduced device life due to aging epoxy, reduced strain transfer efﬁcacy due to low stiffness of epoxy, and degradation of composite properties at elevated temperatures due to the low glass transition temperature of epoxy material. Thus, various epoxy-free methods for layered or 2-2 type ME composite fabrication have been developed in the last two decades to circumvent these limitations. These methods include co-ﬁring technique, electroless deposition, electrodeposition, shrink-ﬁt, and press-ﬁt. Each of these methods has tried to mitigate the disadvantages of its predecessors, however posing its own set of limitations. This review article captures the evolutionary journey of the development of each of these aforementioned techniques in a chronological sequence by highlighting the advantages and disadvantages offered by each of them. Subsequently, a brief overview of state of the art has been provided in summary, followed by a discussion on the potential avenues that may be probed further to improve the available epoxy-free fabrication techniques for layered or 2-2 ME composites.

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“…BiFeO 3 is important specimen of multiferroics, its solid solutions are currently intensively investigated. Experience in application of listed magnetics to fabrication of magnetoelectric composites is broadly described in literature [14][15][16][17][18][19][20] including our studies [21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%