Design, fabrication and dielectric properties in core-double shell BaTiO3-based ceramics for MLCC application

Hua Hao; Mengying Liu; Hanxing Liu; Shujun Zhang; Xin Shu; Ting Wang; Zhonghua Yao; Minghe Cao

doi:10.1039/c4ra13367f

Design, fabrication and dielectric properties in core-double shell BaTiO₃-based ceramics for MLCC application

Hua Hao, Mengying Liu, Hanxing Liu, Shujun Zhang, Xin Shu, Ting Wang, Zhonghua Yao, Minghe Cao

Materials Research Institute (MRI)

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

40 Scopus citations

Abstract

BaTiO₃-based ceramics with a core-double shell structure were fabricated by precipitation and the sol-gel method. Bi(Zn_1/2Ti_1/2)O₃-BaTiO₃ (BZT-BT) or Nb oxide was chosen to be the shell-I (inner layer) or shell-II (outer layer) composition. The structure and dielectric properties were investigated by X-ray diffraction (XRD), HRTEM (High Resolution Transmission Electron Microscopy) and electron probe micro analysis (EPMA), with different core to shell ratio (n_c/n_s). Compared with the designed composition BT-Nb-(0.2BZT-0.8BT), BT-(0.2BZT-0.8BT)-Nb was found to possess improved dielectric temperature stability, where the capacitance variation ΔC/C 蠆 ±15% was achieved over a temperature range of -60-155°C, with the dielectric constant and dielectric loss being in the order of 1860 and 0.011 at room temperature.

Original language	English (US)
Pages (from-to)	8868-8876
Number of pages	9
Journal	RSC Advances
Volume	5
Issue number	12
DOIs	https://doi.org/10.1039/c4ra13367f
State	Published - 2015

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering

Access to Document

10.1039/c4ra13367f

Cite this

@article{eb8de445d9a44b968b82bc892f5f741c,

title = "Design, fabrication and dielectric properties in core-double shell BaTiO3-based ceramics for MLCC application",

abstract = "BaTiO3-based ceramics with a core-double shell structure were fabricated by precipitation and the sol-gel method. Bi(Zn1/2Ti1/2)O3-BaTiO3 (BZT-BT) or Nb oxide was chosen to be the shell-I (inner layer) or shell-II (outer layer) composition. The structure and dielectric properties were investigated by X-ray diffraction (XRD), HRTEM (High Resolution Transmission Electron Microscopy) and electron probe micro analysis (EPMA), with different core to shell ratio (nc/ns). Compared with the designed composition BT-Nb-(0.2BZT-0.8BT), BT-(0.2BZT-0.8BT)-Nb was found to possess improved dielectric temperature stability, where the capacitance variation ΔC/C 蠆 ±15% was achieved over a temperature range of -60-155°C, with the dielectric constant and dielectric loss being in the order of 1860 and 0.011 at room temperature.",

author = "Hua Hao and Mengying Liu and Hanxing Liu and Shujun Zhang and Xin Shu and Ting Wang and Zhonghua Yao and Minghe Cao",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2015.",

year = "2015",

doi = "10.1039/c4ra13367f",

language = "English (US)",

volume = "5",

pages = "8868--8876",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "12",

}

TY - JOUR

T1 - Design, fabrication and dielectric properties in core-double shell BaTiO3-based ceramics for MLCC application

AU - Hao, Hua

AU - Liu, Mengying

AU - Liu, Hanxing

AU - Zhang, Shujun

AU - Shu, Xin

AU - Wang, Ting

AU - Yao, Zhonghua

AU - Cao, Minghe

PY - 2015

Y1 - 2015

N2 - BaTiO3-based ceramics with a core-double shell structure were fabricated by precipitation and the sol-gel method. Bi(Zn1/2Ti1/2)O3-BaTiO3 (BZT-BT) or Nb oxide was chosen to be the shell-I (inner layer) or shell-II (outer layer) composition. The structure and dielectric properties were investigated by X-ray diffraction (XRD), HRTEM (High Resolution Transmission Electron Microscopy) and electron probe micro analysis (EPMA), with different core to shell ratio (nc/ns). Compared with the designed composition BT-Nb-(0.2BZT-0.8BT), BT-(0.2BZT-0.8BT)-Nb was found to possess improved dielectric temperature stability, where the capacitance variation ΔC/C 蠆 ±15% was achieved over a temperature range of -60-155°C, with the dielectric constant and dielectric loss being in the order of 1860 and 0.011 at room temperature.

AB - BaTiO3-based ceramics with a core-double shell structure were fabricated by precipitation and the sol-gel method. Bi(Zn1/2Ti1/2)O3-BaTiO3 (BZT-BT) or Nb oxide was chosen to be the shell-I (inner layer) or shell-II (outer layer) composition. The structure and dielectric properties were investigated by X-ray diffraction (XRD), HRTEM (High Resolution Transmission Electron Microscopy) and electron probe micro analysis (EPMA), with different core to shell ratio (nc/ns). Compared with the designed composition BT-Nb-(0.2BZT-0.8BT), BT-(0.2BZT-0.8BT)-Nb was found to possess improved dielectric temperature stability, where the capacitance variation ΔC/C 蠆 ±15% was achieved over a temperature range of -60-155°C, with the dielectric constant and dielectric loss being in the order of 1860 and 0.011 at room temperature.

UR - http://www.scopus.com/inward/record.url?scp=84921262446&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921262446&partnerID=8YFLogxK

U2 - 10.1039/c4ra13367f

DO - 10.1039/c4ra13367f

M3 - Article

AN - SCOPUS:84921262446

SN - 2046-2069

VL - 5

SP - 8868

EP - 8876

JO - RSC Advances

JF - RSC Advances

IS - 12

ER -

Design, fabrication and dielectric properties in core-double shell BaTiO₃-based ceramics for MLCC application

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this