Abstract
In this work, a series Li2Mg4Zr1−x(Mg1/3Sb2/3)xO7 (x = 0.10–0.25) ceramics were synthesized using the classical solid-state reaction method. The effects of (Mg1/3Sb2/3)4+ in the microstructures, sintering behaviors, and microwave dielectric properties of Li2Mg4Zr1−x(Mg1/3Sb2/3)xO7 ceramics were investigated systematically. XRD analyses indicate that all samples were the rock-salt structure with the Fm-3m space group, the crystalline parameters were obtained using the Rietveld refinement. Based on the complex chemical bond theory, the effects of inherent features (e.g. bond ionicity, bond energy, and lattice energy) on the dielectric performance of Li2Mg4Zr1−x(Mg1/3Sb2/3)xO7 ceramics were analyzed in details. By adding proper content of (Mg1/3Sb2/3)4+, the optimal dielectric performance of ɛr = 12.29, Q × f = 153,140 GHz, and τf = −17.7 ppm/°C were obtained in the Li2Mg4Zr0.8(Mg1/3Sb2/3)0.2O7 materials at 1600 °C for 4 h. The quality factor is more than 100 THz, which indicates that the Li2Mg4Zr0.8(Mg1/3Sb2/3)0.2O7 ceramic is a good candidate for the highly selective filters or microwave resonators.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
