Solid State compatibilities in CaO-CaO∙Al2O3-CaF2 system


  • M. T. Blanco-Varela Instituto de Ciencias de la Construcción "Eduardo Torroja"-CSIC
  • S. Jiménez Molina Repsol Química



In open atmosphere the two phases containing fluorine, C11A7∙CaF2 and 3CA∙CaF2, laying in the CaO-CaO∙Al2O3-CaF2 were synthesized. The synthesis of the 3CA∙CaF2 at 1.100°C was possible without loss of F, when the stoichiometric mixture of CA and CaF2 was pressed into tablets and was applied vacuum, avoiding in such a way the presence of moisture. According to TGA studies, the vapour pressure of phases containing fluorine, at 1.100°C is very low and follows this sequence: CaF2 < 3CACaF2 < C11A7∙CaF2. At 1.000°C the system behaves as condensated. Verification of some compatibilities in solid state in the system CaO-CaO∙Al2O3-CaF2 at 1000°C has been done. Compatibility triangles found are the same described by Chaterjee, and different from the compatibilities given by Brisi and Rolando.


Download data is not yet available.




How to Cite

Blanco-Varela, M. T., & Jiménez Molina, S. (1998). Solid State compatibilities in CaO-CaO∙Al2O3-CaF2 system. Materiales De Construcción, 48(249), 33–43.



Research Articles

Most read articles by the same author(s)

1 2 > >>