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Effect of BaCu(B2O5) on the sintering temperature and microwave dielectric properties of Ba(Nd0.8Bi0.2)2Ti4O12 ceramics

Published online by Cambridge University Press:  31 January 2011

Yi Zeng ,
Hong Wang  and
Huanfu Zhou
Yi Zeng
Affiliation:
Electronic Materials Research Laboratory, Key Laboratory of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
Hong Wang*
Affiliation:
Electronic Materials Research Laboratory, Key Laboratory of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
Huanfu Zhou
Affiliation:
Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Guilin University of Technology, Guilin 541004, China
*
a)Address all correspondence to this author. e-mail: hwang@mail.xjtu.edu.cn
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Abstract

The effect of BaCu(B2O5) (BCB) on the sintering temperature and microwave dielectric properties of Ba(Nd0.8Bi0.2)2Ti4O12 (BNBT) ceramics was investigated. The sintering temperature of the BNBT ceramics was significantly reduced from 1300 to 900 °C. Due to adding BCB into Ba(Nd1–xBix)2Ti4O12, the temperature coefficient of resonant frequency can be adjusted to zero with BCB content increasing. Good microwave dielectric properties of quality factor (Q×f) = 2600 GHz, εr = 75, and τf = 5 ppm/°C were obtained for BNBT with 7 wt% BCB sintered at 925 °C for 2 h, which make it a potential candidate for low temperature cofired ceramics applications.

Keywords

CeramicDielectric Properties

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Type
Articles
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Journal of Materials Research , Volume 25 , Issue 12 , December 2010 , pp. 2380 - 2383
Copyright
Copyright © Materials Research Society 2010

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References

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