Preparation and ferroelectric properties of MnO2 doped BaTi 2O5 ceramics by spark plasma sintering from the solid-state-calcined powder

Wenfeng Liu; Shinya Tsukada; Yukikuni Akishige

doi:10.1007/s10854-014-1722-8

Preparation and ferroelectric properties of MnO₂ doped BaTi ₂O₅ ceramics by spark plasma sintering from the solid-state-calcined powder

Wenfeng Liu
, Shinya Tsukada
, Yukikuni Akishige

School of Electrical Engineering

Shimane University

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

5 Scopus citations

Abstract

Dense BaTi₂O₅ are fabricated from the conventional calcined powder by using spark plasma sintering and by adding MnO₂ as a dopant. The effects of the sintering temperature and the amount of MnO ₂ on the phase purity are symmetrically investigated. A pure BaTi₂O₅ phase is obtained under a condition with the sintering temperature of 1,055 C and the amount of MnO₂ doping of 0.2 wt% from the conventional powder calcined at 950 C. The relative density of that ceramics is 98 %. The temperature dependence of dielectric property shows the Curie temperature (T _c) of 446 C with the peak value of 450. Besides, the ceramics polarization of 0.63 μC/cm² and the coercive field of 2.0 kV/cm at room temperature, respectively.

Original language	English
Pages (from-to)	1280-1283
Number of pages	4
Journal	Journal of Materials Science: Materials in Electronics
Volume	25
Issue number	3
DOIs	https://doi.org/10.1007/s10854-014-1722-8
State	Published - Mar 2014

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title = "Preparation and ferroelectric properties of MnO2 doped BaTi 2O5 ceramics by spark plasma sintering from the solid-state-calcined powder",

abstract = "Dense BaTi2O5 are fabricated from the conventional calcined powder by using spark plasma sintering and by adding MnO2 as a dopant. The effects of the sintering temperature and the amount of MnO 2 on the phase purity are symmetrically investigated. A pure BaTi2O5 phase is obtained under a condition with the sintering temperature of 1,055 C and the amount of MnO2 doping of 0.2 wt\% from the conventional powder calcined at 950 C. The relative density of that ceramics is 98 \%. The temperature dependence of dielectric property shows the Curie temperature (T c) of 446 C with the peak value of 450. Besides, the ceramics polarization of 0.63 μC/cm2 and the coercive field of 2.0 kV/cm at room temperature, respectively.",

author = "Wenfeng Liu and Shinya Tsukada and Yukikuni Akishige",

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doi = "10.1007/s10854-014-1722-8",

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T1 - Preparation and ferroelectric properties of MnO2 doped BaTi 2O5 ceramics by spark plasma sintering from the solid-state-calcined powder

AU - Liu, Wenfeng

AU - Tsukada, Shinya

AU - Akishige, Yukikuni

PY - 2014/3

Y1 - 2014/3

N2 - Dense BaTi2O5 are fabricated from the conventional calcined powder by using spark plasma sintering and by adding MnO2 as a dopant. The effects of the sintering temperature and the amount of MnO 2 on the phase purity are symmetrically investigated. A pure BaTi2O5 phase is obtained under a condition with the sintering temperature of 1,055 C and the amount of MnO2 doping of 0.2 wt% from the conventional powder calcined at 950 C. The relative density of that ceramics is 98 %. The temperature dependence of dielectric property shows the Curie temperature (T c) of 446 C with the peak value of 450. Besides, the ceramics polarization of 0.63 μC/cm2 and the coercive field of 2.0 kV/cm at room temperature, respectively.

AB - Dense BaTi2O5 are fabricated from the conventional calcined powder by using spark plasma sintering and by adding MnO2 as a dopant. The effects of the sintering temperature and the amount of MnO 2 on the phase purity are symmetrically investigated. A pure BaTi2O5 phase is obtained under a condition with the sintering temperature of 1,055 C and the amount of MnO2 doping of 0.2 wt% from the conventional powder calcined at 950 C. The relative density of that ceramics is 98 %. The temperature dependence of dielectric property shows the Curie temperature (T c) of 446 C with the peak value of 450. Besides, the ceramics polarization of 0.63 μC/cm2 and the coercive field of 2.0 kV/cm at room temperature, respectively.

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DO - 10.1007/s10854-014-1722-8

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Preparation and ferroelectric properties of MnO₂ doped BaTi ₂O₅ ceramics by spark plasma sintering from the solid-state-calcined powder

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