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Synthesis of potassium polytitanate precursors by treatment of TiO2with molten mixtures of KNO3and KOH

Authors
Journal
Journal of the European Ceramic Society
0955-2219
Publisher
Elsevier
Publication Date
Volume
24
Issue
13
Identifiers
DOI: 10.1016/j.jeurceramsoc.2003.12.006
Keywords
  • K2Ti6O13
  • Sintering
  • Mechanical Properties
  • Tio2
Disciplines
  • Chemistry

Abstract

Abstract The synthesis of potassium titanate by treatment of TiO 2 with molten mixtures of KNO 3 and KOH was investigated. The stage of TiO 2 transformation into potassium titanate depends on the temperature of treatment, contents of KOH in the molten salt mixture and admixtures of K 2CO 3. The investigation of the chemical and phase composition as well as the size distribution of the powder produced allowed to consider the product obtained as a potassium polytitanate. The mechanism of the potassium polytitanate synthesis is analyzed. It is shown that the synthesized powder is a promising precursor to produce ceramics based on K 2Ti 6O 13 and characterized with high mechanical properties.

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