Review of perovskite ceramics—microwave dielectric resonator materials

Pure phase of magnesium titanate (MgTiO 3) was obtained at 1100 • C by both the conventional solid-state method as well as by the flux method starting from hexahydrated magnesium nitrate and titanium dioxide as the reactants. MgTiO 3 doped with Na or K was also prepared by the solid-state route. Na and K doped compositions led to monophasic MgTiO 3 below 5 mol % dopant concentration while biphasic mixture of MgTiO 3 (major phase) and MgTi 2 O 5 (minor phase) were obtained at higher dopant concentration. The dielectric constant and dielectric loss of MgTiO 3 were found to be almost the same irrespective of the preparative method. MgTiO 3 doped with 5 mol % of Na and K ions displayed optimum dielectric properties.

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Preparation and microwave dielectric properties of pure and doped magnesium titanate ceramics

Ferreira

Baptista

1994

Materials Research Bulletin

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Review of perovskite ceramics—microwave dielectric resonator materials

Cited by 17 publications

References 7 publications

Characteristics of materials for microwave devices

Characteristics of materials for microwave devices

Dielectric behaviour of sodium and potassium doped magnesium titanate

Preparation and microwave dielectric properties of pure and doped magnesium titanate ceramics

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