Cristalización de criolita a partir de un fundido : Rasgos macroscopicos y estructurales
- López-Acevedo Cornejo, María Victoria 1
- Benjouali, Mina 1
- López Andrés, Sol 1
-
1
Universidad Complutense de Madrid
info
ISSN: 0366-3175
Ano de publicación: 2001
Volume: 40
Número: 3
Páxinas: 201-204
Tipo: Artigo
Outras publicacións en: Boletín de la Sociedad Española de Cerámica y Vidrio
Resumo
Overcooling of a cryolite (Na3 AlF6 ) melt gave rise to a granular aggregate. This aggregate can be regarded as the result of a process of homogeneous primary nucleation. Due to the crystallization pressure exerted by the cryolite during cooling, the grains are progressively embedded by a matrix constituted by the contaminant elements (e.g., Si) of the system. Abundant polysinthetic twins are here interpreted as an experimental evidence of processes related to the ferroelastic transition, that took place during cooling.
Información de financiamento
Este trabajo ha sido financiado por la DGYCIT, proyecto nº PB96-0619.Financiadores
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DGYCIT
Spain
- PB96-0619