In-situ electric field observation of small precipitates in BaTiO3 multilayer ceramic capacitors

Naoyuki Kawamoto; Hiroyuki Ono; Yasuhiro Terasaki; Yoshinori Fujikawa; Yasukazu Murakami; Daisuke Shindo

doi:10.2320/matertrans.MI201902

In-situ electric field observation of small precipitates in BaTiO₃ multilayer ceramic capacitors

Naoyuki Kawamoto, Hiroyuki Ono, Yasuhiro Terasaki, Yoshinori Fujikawa, Yasukazu Murakami, Daisuke Shindo

Quantum Sciences of Materials

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

3 Citations (Scopus)

Abstract

The electric potential distribution within a commercial multilayer ceramic capacitor under an applied voltage was determined by electron holography. We demonstrated that equipotential contour lines present essential information about the electrical conductivity of submicrometer-scale precipitates formed in commercial BaTiO₃ multilayer ceramic capacitors. Considerable changes observed in the equipotential contour map of precipitates could be explained by simulations taking into account the electrical conductivities of the precipitates and BaTiO₃ matrix. This method can lead to a deeper understanding of the relationship between the complex microstructure and the material functionalities in capacitors widely used in industry.

Original language	English
Pages (from-to)	2109-2113
Number of pages	5
Journal	Materials Transactions
Volume	60
Issue number	10
DOIs	https://doi.org/10.2320/matertrans.MI201902
Publication status	Published - 2019

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "In-situ electric field observation of small precipitates in BaTiO3 multilayer ceramic capacitors",

abstract = "The electric potential distribution within a commercial multilayer ceramic capacitor under an applied voltage was determined by electron holography. We demonstrated that equipotential contour lines present essential information about the electrical conductivity of submicrometer-scale precipitates formed in commercial BaTiO3 multilayer ceramic capacitors. Considerable changes observed in the equipotential contour map of precipitates could be explained by simulations taking into account the electrical conductivities of the precipitates and BaTiO3 matrix. This method can lead to a deeper understanding of the relationship between the complex microstructure and the material functionalities in capacitors widely used in industry.",

author = "Naoyuki Kawamoto and Hiroyuki Ono and Yasuhiro Terasaki and Yoshinori Fujikawa and Yasukazu Murakami and Daisuke Shindo",

note = "Funding Information: This work was supported by the Global COE Program, “Materials Integration International Center of Education and Research, Tohoku University,” from MEXT; the program, “Post-Silicon Materials and Devices Research Alliance,” from MEXT; a Grant-in-Aid for Scientific Research (S) from the Japan Society for Promotion of Science; and CREST from the Japan Science and Technology Agency (JPMJCR 1664). Publisher Copyright: {\textcopyright} 2019 The Japan Institute of Metals and Materials.",

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language = "English",

volume = "60",

pages = "2109--2113",

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T1 - In-situ electric field observation of small precipitates in BaTiO3 multilayer ceramic capacitors

AU - Kawamoto, Naoyuki

AU - Ono, Hiroyuki

AU - Terasaki, Yasuhiro

AU - Fujikawa, Yoshinori

AU - Murakami, Yasukazu

AU - Shindo, Daisuke

N1 - Funding Information: This work was supported by the Global COE Program, “Materials Integration International Center of Education and Research, Tohoku University,” from MEXT; the program, “Post-Silicon Materials and Devices Research Alliance,” from MEXT; a Grant-in-Aid for Scientific Research (S) from the Japan Society for Promotion of Science; and CREST from the Japan Science and Technology Agency (JPMJCR 1664). Publisher Copyright: © 2019 The Japan Institute of Metals and Materials.

PY - 2019

Y1 - 2019

N2 - The electric potential distribution within a commercial multilayer ceramic capacitor under an applied voltage was determined by electron holography. We demonstrated that equipotential contour lines present essential information about the electrical conductivity of submicrometer-scale precipitates formed in commercial BaTiO3 multilayer ceramic capacitors. Considerable changes observed in the equipotential contour map of precipitates could be explained by simulations taking into account the electrical conductivities of the precipitates and BaTiO3 matrix. This method can lead to a deeper understanding of the relationship between the complex microstructure and the material functionalities in capacitors widely used in industry.

AB - The electric potential distribution within a commercial multilayer ceramic capacitor under an applied voltage was determined by electron holography. We demonstrated that equipotential contour lines present essential information about the electrical conductivity of submicrometer-scale precipitates formed in commercial BaTiO3 multilayer ceramic capacitors. Considerable changes observed in the equipotential contour map of precipitates could be explained by simulations taking into account the electrical conductivities of the precipitates and BaTiO3 matrix. This method can lead to a deeper understanding of the relationship between the complex microstructure and the material functionalities in capacitors widely used in industry.

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JO - Materials Transactions

JF - Materials Transactions

IS - 10

ER -

In-situ electric field observation of small precipitates in BaTiO₃ multilayer ceramic capacitors

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