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 - 2001

Fingerprint

Hafnium
hafnium
thermal decomposition
tungstates
molybdates
phosphates
Phosphates
Pyrolysis
Titanium
titanium
water loss
Crystals
Water
crystals
Salts
Crystalline materials
salts
water
tungstate
molybdate

Keywords

  • Hafnium
  • Molybdate
  • Phosphate
  • Thermal analysis
  • Tungstate

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Thermal decomposition of hafnium phosphate and related materials. / Szirtes, L.; Megyeri, J.; Riess, L.; Kuzmann, E.

In: Journal of Thermal Analysis and Calorimetry, Vol. 65, No. 3, 2001, p. 975-981.

Research output: Contribution to journalArticle

Szirtes, L. ; Megyeri, J. ; Riess, L. ; Kuzmann, E. / Thermal decomposition of hafnium phosphate and related materials. In: Journal of Thermal Analysis and Calorimetry. 2001 ; Vol. 65, No. 3. pp. 975-981.
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