Relationship between microstructure and microwave dielectric properties of glass-free low temperature co-fired CaLa2(MoO4)4 ceramic

Wei, Xiaoli; He, Yinghan; Chen, Xiuli; Zhou, Huanfu

doi:10.1007/s10854-023-11175-2

J Mater Sci: Mater Electron

2023

DOI: 10.1007/s10854-023-11175-2

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Relationship between microstructure and microwave dielectric properties of glass-free low temperature co-fired CaLa2(MoO4)4 ceramic

Xiaoli Wei,

Yinghan He,

Xiuli Chen

et al.

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2024

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Cited by 2 publications

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Correlation between chemical bond characteristics and microwave dielectric properties of KLa(MoO4)2 ceramics

Lin,

Huang,

Huang

2024

Ceramics International

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Correlation between chemical bond characteristics and microwave dielectric properties of KLa(MoO4)2 ceramics

Lin,

Huang,

Huang

2024

Ceramics International

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Microwave dielectric properties of (Na_0.5Bi_0.5)MoO₄–BaMoO₄ composite ceramics with ultralow sintering temperature

Alzakree,

Wang,

Shehbaz

et al. 2024

J Am Ceram Soc.

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The rapidly ever‐growing wireless communication demands development of low loss, ultralow sintering temperature dielectric ceramics with excellent microwave properties. In this work, fabrication and properties of novel microwave dielectric composite ceramics (1 − x)(Na0.5Bi0.5)MoO4–xBaMoO4 (x = 0.3–0.6), in short as ((1 − x)NBM–xBM), synthesized via solid‐state reaction method with an ultralow sintering temperature is reported. X‐ray diffraction analysis confirms the coexistence of both (Na0.5Bi0.5)MoO4 and BaMoO4 scheelite phases. Scanning electron microscopy analysis demonstrated dense microstructures of ceramics sintered at 650°C and 700°C. The dielectric properties of (1 − x)NBM–xBM (x = 0.3–0.6) ceramic are significantly tailored by incorporation of BaMoO4. With the increase in x from 0.3 to 0.6, the (1 − x)(Na0.5Bi0.5)MoO4–xBaMoO4 displays noticeable change in microwave permittivity (varying from 25.4 to 16.6), quality factor values, and temperature coefficient of frequency (range tunable from +37.6 ppm/°C to −14.2 ppm/°C). The microwave dielectric ceramic, 0.5(Na0.5Bi0.5)MoO4–0.5BaMoO4, has optimum dielectric properties (, = 15 164 GHz, τf = −0.2 ppm/°C) at sintering temperature of 650°C. The dielectric resonator antenna designed using (1 − x)(Na0.5Bi0.5)MoO4–xBaMoO4 ceramics demonstrated excellent radiation performance at resonance frequency of 5.905 GHz, gain of ∼5.8 dBi and 140 MHz bandwidth, which validates its microwave applications utilization within the field of ultralow temperature cofired ceramics technology.

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Relationship between microstructure and microwave dielectric properties of glass-free low temperature co-fired CaLa2(MoO4)4 ceramic

Cited by 2 publications

References 48 publications

Correlation between chemical bond characteristics and microwave dielectric properties of KLa(MoO4)2 ceramics

Correlation between chemical bond characteristics and microwave dielectric properties of KLa(MoO4)2 ceramics

Microwave dielectric properties of (Na_0.5Bi_0.5)MoO₄–BaMoO₄ composite ceramics with ultralow sintering temperature

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Relationship between microstructure and microwave dielectric properties of glass-free low temperature co-fired CaLa2(MoO4)4 ceramic

Cited by 2 publications

References 48 publications

Correlation between chemical bond characteristics and microwave dielectric properties of KLa(MoO4)2 ceramics

Correlation between chemical bond characteristics and microwave dielectric properties of KLa(MoO4)2 ceramics

Microwave dielectric properties of (Na0.5Bi0.5)MoO4–BaMoO4 composite ceramics with ultralow sintering temperature

Contact Info

Product

Resources

About

Microwave dielectric properties of (Na_0.5Bi_0.5)MoO₄–BaMoO₄ composite ceramics with ultralow sintering temperature