Abstract
Pure phase of magnesium titanate (MgTiO\(_{\boldsymbol{3}})\) 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\(_{\boldsymbol{3}}\) doped with Na or K was also prepared by the solid-state route. Na and K doped compositions led to monophasic MgTiO\(_{\boldsymbol{3}}\) below 5 mol % dopant concentration while biphasic mixture of MgTiO\(_{\boldsymbol{3}}\) (major phase) and MgTi\(_{\boldsymbol{2}}\)O\(_{\boldsymbol{5}}\) (minor phase) were obtained at higher dopant concentration. The dielectric constant and dielectric loss of MgTiO\(_{\boldsymbol{3}}\) were found to be almost the same irrespective of the preparative method. MgTiO\(_{\boldsymbol{3}}\) doped with 5 mol % of Na and K ions displayed optimum dielectric properties.
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The authors thank the Indian Institute of Technology, Delhi, for according permission to carry out characterization of the samples.
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SHANKER, V., KUMAR, S. & SURENDAR, T. Dielectric behaviour of sodium and potassium doped magnesium titanate. Bull Mater Sci 35, 1165–1171 (2012). https://doi.org/10.1007/s12034-012-0399-y
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DOI: https://doi.org/10.1007/s12034-012-0399-y