TDPAC study on the thermal stability of zirconium tetrafluoride

The thermal evolution of the hyperfine interaction in α-ZrF4 is investigated between 293 K and 788 K. The first change, observed ay 534 K, is attributed to the appearance of the non-stoichiometric compound ZrO1.3F1.4. During the transformation, the relative fraction of the latter shows an Arrhenius...

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Detalles Bibliográficos
Autores principales: Rivas, Patricia Claudia, Caracoche, María Cristina, Martínez, Jorge Alberto, Dova, María Teresa, López García, Alberto Raúl
Formato: Articulo
Lenguaje:Inglés
Publicado: 1986
Materias:
Física
Ciencias Exactas
time-differential perturbed angular correlation
Zirconium tetrafluoride
thermal evolution
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/140934
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:The thermal evolution of the hyperfine interaction in α-ZrF4 is investigated between 293 K and 788 K. The first change, observed ay 534 K, is attributed to the appearance of the non-stoichiometric compound ZrO1.3F1.4. During the transformation, the relative fraction of the latter shows an Arrhenius behaviour with an activation energyEa=(22.6±5.5) kJ/mol. At approximately 700 K, ZrO1.3F1.4 gives rise to the monoclinic phase of ZrO2 and to β-ZrF4.

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