Microwave dielectric properties and co-firing of BiNbO4 ceramics with CuO-WO3 substitution

Di Zhou; Hong Wang; Xi Yao; Li Xia Pang

doi:10.1016/j.mseb.2007.06.016

Microwave dielectric properties and co-firing of BiNbO₄ ceramics with CuO-WO₃ substitution

Di Zhou
, Hong Wang
, Xi Yao
, Li Xia Pang

Key Lab of the Ministry of Education for Process Control and Efficiency Egineering

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

12 Scopus citations

Abstract

The effect of CuO and WO₃ substitution on the sintering behavior, morphology, the microwave dielectric properties and the co-firing with copper electrode of BiNbO₄ ceramics and were studied. With x-value increasing from 0.001 to 0.01, the densified temperatures of Bi(Cu_xW_3xNb_1-4x)O₄ ceramics decreased from 1010 to 930 °C and the grain size decreased as well. The dielectric constant ε_r was between 38.5 and 43.5 and the Qf values lied between 15,000 and 2000 GHz at about 3.9 GHz. Temperature coefficient of resonant frequencies τ_f values were between +5.06 and -9.76 ppm/°C and decreased with x-value increasing. The CuO and WO₃ substitution can adjust the τ_f values to near zero with proper substitution amount but deteriorate the dielectric properties when substitution amount increased. Copper electrode was found not to penetrate into the ceramic from the SEM and EDS results of the co-fired samples.

Original language	English
Pages (from-to)	106-111
Number of pages	6
Journal	Materials Science and Engineering: B
Volume	142
Issue number	2-3
DOIs	https://doi.org/10.1016/j.mseb.2007.06.016
State	Published - 25 Sep 2007
Externally published	Yes

Keywords

Bi(CuWNb)O ceramics
Co-firing
Microwave dielectrics
Qf value
Temperature coefficient of resonant frequency

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10.1016/j.mseb.2007.06.016

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@article{0016cad18c494b59b5b7b70588103d75,

title = "Microwave dielectric properties and co-firing of BiNbO4 ceramics with CuO-WO3 substitution",

abstract = "The effect of CuO and WO3 substitution on the sintering behavior, morphology, the microwave dielectric properties and the co-firing with copper electrode of BiNbO4 ceramics and were studied. With x-value increasing from 0.001 to 0.01, the densified temperatures of Bi(CuxW3xNb1-4x)O4 ceramics decreased from 1010 to 930 °C and the grain size decreased as well. The dielectric constant εr was between 38.5 and 43.5 and the Qf values lied between 15,000 and 2000 GHz at about 3.9 GHz. Temperature coefficient of resonant frequencies τf values were between +5.06 and -9.76 ppm/°C and decreased with x-value increasing. The CuO and WO3 substitution can adjust the τf values to near zero with proper substitution amount but deteriorate the dielectric properties when substitution amount increased. Copper electrode was found not to penetrate into the ceramic from the SEM and EDS results of the co-fired samples.",

keywords = "Bi(CuWNb)O ceramics, Co-firing, Microwave dielectrics, Qf value, Temperature coefficient of resonant frequency",

author = "Di Zhou and Hong Wang and Xi Yao and Pang, \{Li Xia\}",

year = "2007",

month = sep,

day = "25",

doi = "10.1016/j.mseb.2007.06.016",

language = "英语",

volume = "142",

pages = "106--111",

journal = "Materials Science and Engineering: B",

issn = "0921-5107",

publisher = "Elsevier Ltd",

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}

TY - JOUR

T1 - Microwave dielectric properties and co-firing of BiNbO4 ceramics with CuO-WO3 substitution

AU - Zhou, Di

AU - Wang, Hong

AU - Yao, Xi

AU - Pang, Li Xia

PY - 2007/9/25

Y1 - 2007/9/25

N2 - The effect of CuO and WO3 substitution on the sintering behavior, morphology, the microwave dielectric properties and the co-firing with copper electrode of BiNbO4 ceramics and were studied. With x-value increasing from 0.001 to 0.01, the densified temperatures of Bi(CuxW3xNb1-4x)O4 ceramics decreased from 1010 to 930 °C and the grain size decreased as well. The dielectric constant εr was between 38.5 and 43.5 and the Qf values lied between 15,000 and 2000 GHz at about 3.9 GHz. Temperature coefficient of resonant frequencies τf values were between +5.06 and -9.76 ppm/°C and decreased with x-value increasing. The CuO and WO3 substitution can adjust the τf values to near zero with proper substitution amount but deteriorate the dielectric properties when substitution amount increased. Copper electrode was found not to penetrate into the ceramic from the SEM and EDS results of the co-fired samples.

AB - The effect of CuO and WO3 substitution on the sintering behavior, morphology, the microwave dielectric properties and the co-firing with copper electrode of BiNbO4 ceramics and were studied. With x-value increasing from 0.001 to 0.01, the densified temperatures of Bi(CuxW3xNb1-4x)O4 ceramics decreased from 1010 to 930 °C and the grain size decreased as well. The dielectric constant εr was between 38.5 and 43.5 and the Qf values lied between 15,000 and 2000 GHz at about 3.9 GHz. Temperature coefficient of resonant frequencies τf values were between +5.06 and -9.76 ppm/°C and decreased with x-value increasing. The CuO and WO3 substitution can adjust the τf values to near zero with proper substitution amount but deteriorate the dielectric properties when substitution amount increased. Copper electrode was found not to penetrate into the ceramic from the SEM and EDS results of the co-fired samples.

KW - Bi(CuWNb)O ceramics

KW - Co-firing

KW - Microwave dielectrics

KW - Qf value

KW - Temperature coefficient of resonant frequency

UR - https://www.scopus.com/pages/publications/34548317435

U2 - 10.1016/j.mseb.2007.06.016

DO - 10.1016/j.mseb.2007.06.016

M3 - 文章

AN - SCOPUS:34548317435

SN - 0921-5107

VL - 142

SP - 106

EP - 111

JO - Materials Science and Engineering: B

JF - Materials Science and Engineering: B

IS - 2-3

ER -

Microwave dielectric properties and co-firing of BiNbO₄ ceramics with CuO-WO₃ substitution

Abstract

Keywords

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