Rare Earth Ion-Doped Y2.95R0.05MgAl3SiO12 (R = Yb, Y, Dy, Eu, Sm) Garnet-Type Microwave Ceramics for 5G Application
نویسندگان
چکیده
In this work, Y2.95R0.05MgAl3SiO12 (R = Yb, Y, Dy, Eu, Sm) microwave single-phase dielectric ceramics were successfully prepared via a conventional ceramic sintering technology by doping series of rare earth elements (Yb, with different ionic radii for the first time. The effects A-sites occupied on properties studied using crystal structure refinement, scanning electron microscope (SEM), bond valence theory, P-V-L and infrared reflection spectroscopy. It was found that ionicity Y-O bond, lattice energy, valance Al(Tet)-O had important properties. Particularly, optimum properties, εr 9.68, Q × f 68,866 GHz, τf −35.8 ppm/°C, obtained Y2.95Dy0.05MgAl3SiO12 when sintered at 1575 °C 6 h, displaying its potential 5G communication.
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ژورنال
عنوان ژورنال: Crystals
سال: 2022
ISSN: ['2073-4352']
DOI: https://doi.org/10.3390/cryst12111608