Microstructure and dielectric property of flash sintered SiO2-coated BaTiO3 ceramics

Baisheng Ma; Yan Zhu; Kewei Wang; Zhenzhong Sun; Dianguang Liu; Gang Shao; Jinling Liu; Yiguang Wang

doi:10.1016/j.scriptamat.2019.05.019

Microstructure and dielectric property of flash sintered SiO₂-coated BaTiO₃ ceramics

Baisheng Ma, Yan Zhu, Kewei Wang, Zhenzhong Sun, Dianguang Liu, Gang Shao, Jinling Liu^*, Yiguang Wang

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

26 Citations (Scopus)

Abstract

Flash sintering method was adopted to sinter SiO₂-coated BaTiO₃ ceramics to lower sintering temperature and shorten sintering time. The microstructure and dielectric property of BaTiO₃ with different amount of SiO₂ coating were studied. Samples can be flash sintered at furnace temperatures lower than conventional sintering temperature. Though the onset flash sintering temperature increased obviously with increasing SiO₂ content, the estimated sample temperatures were found close to each other. Samples with improved density was achieved with higher SiO₂ content, but their dielectric constant decreased. Flash sintered samples with 1.5 wt% SiO₂ addition possess a fair dielectric constant with improved density.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Scripta Materialia
Volume	170
DOIs	https://doi.org/10.1016/j.scriptamat.2019.05.019
Publication status	Published - Sept 2019

Keywords

Barium titanate
Dielectric property
Flash sintering
Microstructure

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10.1016/j.scriptamat.2019.05.019

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abstract = "Flash sintering method was adopted to sinter SiO2-coated BaTiO3 ceramics to lower sintering temperature and shorten sintering time. The microstructure and dielectric property of BaTiO3 with different amount of SiO2 coating were studied. Samples can be flash sintered at furnace temperatures lower than conventional sintering temperature. Though the onset flash sintering temperature increased obviously with increasing SiO2 content, the estimated sample temperatures were found close to each other. Samples with improved density was achieved with higher SiO2 content, but their dielectric constant decreased. Flash sintered samples with 1.5 wt% SiO2 addition possess a fair dielectric constant with improved density.",

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AU - Ma, Baisheng

AU - Zhu, Yan

AU - Wang, Kewei

AU - Sun, Zhenzhong

AU - Liu, Dianguang

AU - Shao, Gang

AU - Liu, Jinling

AU - Wang, Yiguang

PY - 2019/9

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N2 - Flash sintering method was adopted to sinter SiO2-coated BaTiO3 ceramics to lower sintering temperature and shorten sintering time. The microstructure and dielectric property of BaTiO3 with different amount of SiO2 coating were studied. Samples can be flash sintered at furnace temperatures lower than conventional sintering temperature. Though the onset flash sintering temperature increased obviously with increasing SiO2 content, the estimated sample temperatures were found close to each other. Samples with improved density was achieved with higher SiO2 content, but their dielectric constant decreased. Flash sintered samples with 1.5 wt% SiO2 addition possess a fair dielectric constant with improved density.

AB - Flash sintering method was adopted to sinter SiO2-coated BaTiO3 ceramics to lower sintering temperature and shorten sintering time. The microstructure and dielectric property of BaTiO3 with different amount of SiO2 coating were studied. Samples can be flash sintered at furnace temperatures lower than conventional sintering temperature. Though the onset flash sintering temperature increased obviously with increasing SiO2 content, the estimated sample temperatures were found close to each other. Samples with improved density was achieved with higher SiO2 content, but their dielectric constant decreased. Flash sintered samples with 1.5 wt% SiO2 addition possess a fair dielectric constant with improved density.

KW - Barium titanate

KW - Dielectric property

KW - Flash sintering

KW - Microstructure

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Microstructure and dielectric property of flash sintered SiO₂-coated BaTiO₃ ceramics

Abstract

Keywords

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