Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1516910 | Journal of Physics and Chemistry of Solids | 2009 | 4 Pages |
Abstract
The sintering behavior, microstructures, and microwave dielectric properties of Ca2Zn4Ti15O36 ceramics with B2O3 addition were investigated. The crystalline phases and microstructures of Ca2Zn4Ti15O36 ceramics with 0–10 wt% B2O3 addition were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The sintering temperature of Ca2Zn4Ti15O36 ceramic was lowered from 1170 to 930 °C by 10 wt% B2O3 addition. Ca2Zn4Ti15O36 ceramics with 8 wt% B2O3 addition sintered at 990 °C for 2 h exhibited good microwave dielectric properties, i.e., a quality factor (Qf) 11,400 GHz, a relative dielectric constant (εr) 41.5, and a temperature coefficient of resonant frequency (τf) 94.4 ppm/°C.
Keywords
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hai-Bo Yang, Ying Lin, Jian-Feng Zhu, Fen Wang,