Dielectric behaviour of sodium and potassium doped magnesium titanate

Vishnu Shanker, Santosh Kumar, T. Surendar

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Pure phase of magnesium titanate (MgTiO3) 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.MgTiO3 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 MgTiO3 (major phase) and MgTi2O5 (minor phase) were obtained at higher dopant concentration. The dielectric constant and dielectric loss of MgTiO3 were found to be almost the same irrespective of the preparative method. MgTiO3 doped with 5 mol % of Na and K ions displayed optimum dielectric properties.

Original languageEnglish
Pages (from-to)1165-1171
Number of pages7
JournalBulletin of Materials Science
Volume35
Issue number7
DOIs
Publication statusPublished - 1 Dec 2012

Keywords

  • Ceramics
  • Dielectric constant
  • Dielectric loss

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

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