High-temperature decomposition of KTiOPO4

M. E. Hagerman, V. L. Kozhevnikov, Kenneth R Poeppelmeier

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Abstract

It has been shown that potassium titanyl phosphate, KTiOPO4, decomposes at elevated temperatures with the evolution of gaseous phosphorus and potassium oxides and formation of solid titanium dioxide. Microscopic investigation and kinetic analysis reveal that the decomposition develops on the surface of KTP microcrystals. A fit of the kinetic curves in the deceleratory period to the Ginstling-Brounshtein equation has shown that the high-temperature decomposition of KTP is limited by diffusion at the reaction interface. The apparent activation energy of the decomposition was determined to be equal to 2.3 ± 0.2 eV.

Original languageEnglish
Pages (from-to)1211-1215
Number of pages5
JournalChemistry of Materials
Volume5
Issue number9
Publication statusPublished - 1993

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ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Cite this

Hagerman, M. E., Kozhevnikov, V. L., & Poeppelmeier, K. R. (1993). High-temperature decomposition of KTiOPO4. Chemistry of Materials, 5(9), 1211-1215.