Investigation of Zn2+ substitution on the sintering behavior and microwave dielectric properties of Li2Co1.9Zn0.1Mo3O12 ceramic

This study delves into the impact of Zn2+ substitution on the sintering behavior and microwave dielectric properties of Li2Co1.9Zn0.1Mo3O12 ceramics. The research covers several key areas: the influence of sintering temperature on phase composition and microstructural features, the effects of Zn2+ substitution on lattice structure and densification, the relationship between sintering conditions and dielectric properties, and the thermal stability of the ceramics. The findings reveal that Zn2+ substitution promotes densification and enhances dielectric properties, with optimal performance achieved at a sintering temperature of 775°C. The ceramics exhibit a dielectric constant of 10.10, a quality factor of 13,800 GHz, and a temperature coefficient of resonant frequency of -45.96 ppm/°C. These results highlight the potential of Zn2+ substitution in tailoring the properties of Li2Co1.9Zn0.1Mo3O12 ceramics for advanced microwave applications, offering a balanced combination of low sintering temperature, moderate dielectric constant, and adequate quality factor.