A facile preparation of temperature-stable borate ultra-low permittivity microwave ceramics for LTCC applications
| Autor: | Fei Shang, Guohua Chen, Fei Liu, Jiwen Xu, Juan Xi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Permittivity Materials science Process Chemistry and Technology chemistry.chemical_element Sintering 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry visual_art Phase (matter) 0103 physical sciences Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Composite material 0210 nano-technology Boron Microwave |
| Zdroj: | Ceramics International. 46:19650-19653 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.04.301 |
| Popis: | An ultra-low permittivity Li2O-added CuO-ZnO-B2O3 multiphase ceramic was fabricated by means of sintering technique, and the phase compositions, microstructures and dielectric properties were investigated. Specimens can be sintered below 800 °C. All the sintered samples consist of Zn(BO2)2 and CuB2O4. The variations in the microstructure and dielectric properties of borate ceramics samples were relied on the sintering temperature. The ceramic sintered at 785 °C for 2 h exhibits excellent dielectric properties of ϵr = 2.86, Q × f = 38093 GHz (~16.0 GHz), τƒ = -2.17 ppm/°C, which indicates that the ceramic is a promising candidate for LTCC applications. |
| Databáze: | OpenAIRE |
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