Dielectric and tunable properties of Zr doped BST ceramics prepared by spark plasma sintering

Xilin Wang; Rongxia Huang; Yongjie Zhao; Yuzhen Zhao; Heping Zhou; Zhidong Jia

doi:10.1016/j.jallcom.2012.04.010

Dielectric and tunable properties of Zr doped BST ceramics prepared by spark plasma sintering

Xilin Wang^*, Rongxia Huang, Yongjie Zhao, Yuzhen Zhao, Heping Zhou, Zhidong Jia

^*Corresponding author for this work

Tsinghua University

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

27 Citations (Scopus)

Abstract

Zr doped Ba _0.6Sr _0.4TiO ₃ ceramic was sintered by spark plasma sintering (SPS) and thermal treatment. Sintering behavior, microstructure and dielectric properties of the BST ceramics were investigated by XRD, SEM and impedance analyzer. High dense Ba _0.6Sr _0.4(Zr _0.2Ti _0.8)O ₃ ceramic with 98.2% of the theoretical density was fabricated at 1270 °C for 5 min. The dielectric constant of this sample reduced to 850 at 100 kHz, the tunability of the ceramic increased to 57% (1.5 kV/mm, 298 K) and the figure of merit (FOM) value increased to 475, which is promising material for tunable devices application.

Original language	English
Pages (from-to)	25-28
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	533
DOIs	https://doi.org/10.1016/j.jallcom.2012.04.010
Publication status	Published - 25 Aug 2012
Externally published	Yes

Keywords

BST
SPS
Tunablilty

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10.1016/j.jallcom.2012.04.010

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title = "Dielectric and tunable properties of Zr doped BST ceramics prepared by spark plasma sintering",

abstract = "Zr doped Ba 0.6Sr 0.4TiO 3 ceramic was sintered by spark plasma sintering (SPS) and thermal treatment. Sintering behavior, microstructure and dielectric properties of the BST ceramics were investigated by XRD, SEM and impedance analyzer. High dense Ba 0.6Sr 0.4(Zr 0.2Ti 0.8)O 3 ceramic with 98.2% of the theoretical density was fabricated at 1270 °C for 5 min. The dielectric constant of this sample reduced to 850 at 100 kHz, the tunability of the ceramic increased to 57% (1.5 kV/mm, 298 K) and the figure of merit (FOM) value increased to 475, which is promising material for tunable devices application.",

keywords = "BST, SPS, Tunablilty",

author = "Xilin Wang and Rongxia Huang and Yongjie Zhao and Yuzhen Zhao and Heping Zhou and Zhidong Jia",

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doi = "10.1016/j.jallcom.2012.04.010",

language = "English",

volume = "533",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Dielectric and tunable properties of Zr doped BST ceramics prepared by spark plasma sintering

AU - Wang, Xilin

AU - Huang, Rongxia

AU - Zhao, Yongjie

AU - Zhao, Yuzhen

AU - Zhou, Heping

AU - Jia, Zhidong

PY - 2012/8/25

Y1 - 2012/8/25

N2 - Zr doped Ba 0.6Sr 0.4TiO 3 ceramic was sintered by spark plasma sintering (SPS) and thermal treatment. Sintering behavior, microstructure and dielectric properties of the BST ceramics were investigated by XRD, SEM and impedance analyzer. High dense Ba 0.6Sr 0.4(Zr 0.2Ti 0.8)O 3 ceramic with 98.2% of the theoretical density was fabricated at 1270 °C for 5 min. The dielectric constant of this sample reduced to 850 at 100 kHz, the tunability of the ceramic increased to 57% (1.5 kV/mm, 298 K) and the figure of merit (FOM) value increased to 475, which is promising material for tunable devices application.

AB - Zr doped Ba 0.6Sr 0.4TiO 3 ceramic was sintered by spark plasma sintering (SPS) and thermal treatment. Sintering behavior, microstructure and dielectric properties of the BST ceramics were investigated by XRD, SEM and impedance analyzer. High dense Ba 0.6Sr 0.4(Zr 0.2Ti 0.8)O 3 ceramic with 98.2% of the theoretical density was fabricated at 1270 °C for 5 min. The dielectric constant of this sample reduced to 850 at 100 kHz, the tunability of the ceramic increased to 57% (1.5 kV/mm, 298 K) and the figure of merit (FOM) value increased to 475, which is promising material for tunable devices application.

KW - BST

KW - SPS

KW - Tunablilty

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U2 - 10.1016/j.jallcom.2012.04.010

DO - 10.1016/j.jallcom.2012.04.010

M3 - Article

AN - SCOPUS:84860993139

SN - 0925-8388

VL - 533

SP - 25

EP - 28

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Dielectric and tunable properties of Zr doped BST ceramics prepared by spark plasma sintering

Abstract

Keywords

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