Analysis of structural and dielectric properties of A-site substituted magnesium titanate synthesized using auto-ignition combustion method

Abstract

The structural and dielectric properties of magnesium titanate solid solutions substituted with zinc or cobalt (M_xMg_1−x) TiO₃ (M = Zn/Co and x = 0.00, 0.05) were investigated. MgTiO₃ formed as a single phase, according to X-ray diffraction analysis. Low porosity, tightly packed grains were detected using scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) analyses. The dielectric properties reveal that (M_xMg_1−x) TiO₃ with Zn = 0.05 shows a good combination of relative permittivity (ε_r) of 15.10, loss tangent (tan) of 1.11 × 10^–3, and temperature coefficient of resonant frequency (τ_f) of –42.70 ppm/°C at 1 MHz was reported.

Keywords:

• Dielectric ceramics
• Permitivity
• Loss Tangent
• XRD

Disclosure statement

No potential conflict of interest was reported by the authors.