Effects of sintering process on microstructure and microwave dielectric properties of Ba(Co1/3Nb2/3)O3 ceramics

Zhefei Wang; Jiajia Wu; Lixi Wang; Zhenxiao Fu; Qitu Zhang

doi:10.1007/s13391-014-3350-0

Effects of sintering process on microstructure and microwave dielectric properties of Ba(Co_1/3Nb_2/3)O₃ ceramics

Zhefei Wang, Jiajia Wu, Lixi Wang, Zhenxiao Fu, Qitu Zhang

College of Materials Science and Engineering

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

5 Scopus citations

Abstract

Ba(Co_1/3Nb_2/3)O₃ (BCN) ceramics were prepared using a conventional solid-state route. Effects of sintering on microstructure and microwave dielectric properties of Ba(Co_1/3Nb_2/3)O₃ ceramics were systematically investigated. Appropriate sintering temperature could restrain the evaporation of CoO and the formation of Nb-rich phase. The dielectric constants and temperature coefficients of resonant frequency changed slightly with the variation in sintering temperatures. The high Q × f value with prolonged sintering time was related to the improvement of 1: 2 ordered arrangement in the B site, rather than the compactness of ceramics. Excellent microwave dielectric properties (ε_r=32.6, Q × f =86857 GHz, τ_f=−14 ppm/°C) were obtained in the Ba(Co_1/3Nb_2/3)O₃ ceramics sintered at 1380°C for 12 h.

Original language	English
Pages (from-to)	1121-1125
Number of pages	5
Journal	Electronic Materials Letters
Volume	10
Issue number	6
DOIs	https://doi.org/10.1007/s13391-014-3350-0
State	Published - 19 Nov 2014

Keywords

Ba(CoNb)O ceramic
high Q × f value
microwave dielectric
sintering process

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title = "Effects of sintering process on microstructure and microwave dielectric properties of Ba(Co1/3Nb2/3)O3 ceramics",

abstract = "Ba(Co1/3Nb2/3)O3 (BCN) ceramics were prepared using a conventional solid-state route. Effects of sintering on microstructure and microwave dielectric properties of Ba(Co1/3Nb2/3)O3 ceramics were systematically investigated. Appropriate sintering temperature could restrain the evaporation of CoO and the formation of Nb-rich phase. The dielectric constants and temperature coefficients of resonant frequency changed slightly with the variation in sintering temperatures. The high Q × f value with prolonged sintering time was related to the improvement of 1: 2 ordered arrangement in the B site, rather than the compactness of ceramics. Excellent microwave dielectric properties (εr=32.6, Q × f =86857 GHz, τf=−14 ppm/°C) were obtained in the Ba(Co1/3Nb2/3)O3 ceramics sintered at 1380°C for 12 h.",

keywords = "Ba(CoNb)O ceramic, high Q × f value, microwave dielectric, sintering process",

author = "Zhefei Wang and Jiajia Wu and Lixi Wang and Zhenxiao Fu and Qitu Zhang",

note = "Publisher Copyright: {\textcopyright} 2014, The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.",

year = "2014",

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doi = "10.1007/s13391-014-3350-0",

language = "英语",

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TY - JOUR

T1 - Effects of sintering process on microstructure and microwave dielectric properties of Ba(Co1/3Nb2/3)O3 ceramics

AU - Wang, Zhefei

AU - Wu, Jiajia

AU - Wang, Lixi

AU - Fu, Zhenxiao

AU - Zhang, Qitu

PY - 2014/11/19

Y1 - 2014/11/19

N2 - Ba(Co1/3Nb2/3)O3 (BCN) ceramics were prepared using a conventional solid-state route. Effects of sintering on microstructure and microwave dielectric properties of Ba(Co1/3Nb2/3)O3 ceramics were systematically investigated. Appropriate sintering temperature could restrain the evaporation of CoO and the formation of Nb-rich phase. The dielectric constants and temperature coefficients of resonant frequency changed slightly with the variation in sintering temperatures. The high Q × f value with prolonged sintering time was related to the improvement of 1: 2 ordered arrangement in the B site, rather than the compactness of ceramics. Excellent microwave dielectric properties (εr=32.6, Q × f =86857 GHz, τf=−14 ppm/°C) were obtained in the Ba(Co1/3Nb2/3)O3 ceramics sintered at 1380°C for 12 h.

AB - Ba(Co1/3Nb2/3)O3 (BCN) ceramics were prepared using a conventional solid-state route. Effects of sintering on microstructure and microwave dielectric properties of Ba(Co1/3Nb2/3)O3 ceramics were systematically investigated. Appropriate sintering temperature could restrain the evaporation of CoO and the formation of Nb-rich phase. The dielectric constants and temperature coefficients of resonant frequency changed slightly with the variation in sintering temperatures. The high Q × f value with prolonged sintering time was related to the improvement of 1: 2 ordered arrangement in the B site, rather than the compactness of ceramics. Excellent microwave dielectric properties (εr=32.6, Q × f =86857 GHz, τf=−14 ppm/°C) were obtained in the Ba(Co1/3Nb2/3)O3 ceramics sintered at 1380°C for 12 h.

KW - Ba(CoNb)O ceramic

KW - high Q × f value

KW - microwave dielectric

KW - sintering process

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U2 - 10.1007/s13391-014-3350-0

DO - 10.1007/s13391-014-3350-0

M3 - 文章

AN - SCOPUS:84911483768

SN - 1738-8090

VL - 10

SP - 1121

EP - 1125

JO - Electronic Materials Letters

JF - Electronic Materials Letters

IS - 6

ER -

Effects of sintering process on microstructure and microwave dielectric properties of Ba(Co_1/3Nb_2/3)O₃ ceramics

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Keywords

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