Thermal decomposition of hafnium phosphate and related materials

L. Szirtes, J. Megyeri, L. Riess, E. Kuzmann

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The thermal decomposition of hafnium phosphate (both in amorphous and crystalline forms), molybdate and tungstate was investigated. Hafnium phosphate has a layered structure, that of molybdate and of tungstate are tetragonal one. On investigating these materials two main endothermic processes with mass loss were observed in the temperature range of 298-1023 K. These processes were identified as crystal and structural water loss of the materials. The total mass loss of hafnium phosphate, molybdate and tungstate was 11, 35 and 6.0%, respectively. In the case of mixed hafnium-titanium salts various crystal water quantities were found, depending on the titanium content of the sample.

Original languageEnglish
Pages (from-to)975-981
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume65
Issue number3
DOIs
Publication statusPublished - Oct 16 2001

Keywords

  • Hafnium
  • Molybdate
  • Phosphate
  • Thermal analysis
  • Tungstate

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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