Structural and Dielectric Studies of Nanocrystalline Calcium Substituted Magnesium Titanate Synthesized Through an Auto‐Igniting Combustion Technique

Abstract

Nanocrystalline calcium substituted magnesium titanate was synthesized through an auto‐igniting combustion technique. The phase constitution of the powder was examined using X‐ray diffraction, thermal analyses, and spectroscopic studies. The particle size of ~30 nm was obtained, and that could be sintered to 96% of the theoretic density at 1150°C/2 h. The microstructure of the sintered surface was examined using scanning electron microscopy. The quality factor (Qu × f ) of 65,110 GHz, dielectric constant (εr) of 20.25, and temperature coefficient of resonant frequency (τf) of ~0 ppm/°C suggest that the sintered sample can be used for microwave applications.

Effect of Pressing Force on the Physical Properties of CaMgTiO₃ Ceramic Prepared by HEBM

“…In fact, MgTiO 3 and CaTiO 3 based ceramics are also have wide applications as resonators, communication filters and antennas, radar and global positioning systems operating at microwave frequencies [2]. For many applications, CaMgTiO 3 material is synthesized using the solid-state reaction method at high sintering temperature is needed to densify ceramics [3].…”