University of Oulu

Mei-Yu Chen, Jari Juuti, Heli Jantunen, Sintering behavior, microstructure and dielectric performance of BaTiO3 with 60–65 wt% addition of B2O3-Bi2O3-SiO2-ZnO glass, Journal of Alloys and Compounds, Volume 737, 15 March 2018, Pages 392-397, ISSN 0925-8388, https://doi.org/10.1016/j.jallcom.2017.12.099. (https://www.sciencedirect.com/science/article/pii/S0925838817342822) Keywords: Glass-ceramic composite; BaTiO3; Sintering behavior; Microstructure; Dielectric/ferroelectric properties

Sintering behavior, microstructure and dielectric performance of BaTiO₃ with 60–65 wt% addition of B₂O₃-Bi₂O₃-SiO₂-ZnO glass

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Author: Chen, Mei-Yu1; Juuti, Jari1; Jantunen, Heli1
Organizations: 1Microelectronics Research Units, Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe201801101178
Language: English
Published: Elsevier, 2018
Publish Date: 2019-12-12
Description:

Abstract

The sintering behaviors and characteristics of a glass-ceramic composite (BaTiO₃ with 60–65 wt% addition of BBSZ) were studied in this paper. The composites showed three-stage phase generation, Bi₂₄Si₂O₄₀ at 385–450 °C, an intermediate borate phase and Bi₄Ti₃O₁₂ at 530 °C, ZnO and BaBi₄Ti₄O₁₅ at 720 °C. High densification was achieved at a sintering temperature of 720 °C for the composite with BaTiO₃ and 60 wt% of glass, and at 480 °C with 65 wt% glass addition. The amounts of the phases for different samples were also studied. High permittivity with a relatively low loss value (εᵣ ∼ 116 and tan δ ∼ 0.007 at 100 kHz) was achieved when the sample having 65 wt% addition of glass was sintered at 480 °C. This sample was also feasible for co-firing with silver electrodes. With a somewhat lower glass addition (60 wt%), sintering at 720 °C generated BaBi₄Ti₄O₁₅ phase showing weak ferroelectricity (remanence polarization Pᵣ of 0.17 μC/cm² and a coercive field Ec of 0.85 MV/m with an applied field of 8 MV/m) which also resulted in a higher loss (0.016).

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Series: Journal of alloys and compounds
ISSN: 0925-8388
ISSN-E: 1873-4669
ISSN-L: 0925-8388
Volume: 757
Pages: 392 - 397
DOI: 10.1016/j.jallcom.2017.12.099
OADOI: https://oadoi.org/10.1016/j.jallcom.2017.12.099
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Funding: The work leading to these results has received funding from the European Research Council (ERC) under the European Union's Seventh Framework Programme (FP7/2007–2013) [ERC Grant agreement no. 291132]. Author JJ acknowledges the funding of the Academy of Finland [project numbers 267573 and 273663].
EU Grant Number: (291132) ULTIMATE CERAMICS - Printed Electroceramics with Ultimate Compositions
Academy of Finland Grant Number: 267573
273663
Detailed Information: 267573 (Academy of Finland Funding decision)
273663 (Academy of Finland Funding decision)
Copyright information: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
  https://creativecommons.org/licenses/by-nc-nd/4.0/