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Textural properties of SiO2 · CaO · P2O5 glasses prepared by the sol-gel method

Published online by Cambridge University Press:  31 January 2011

F. Balas ,
D. Arcos ,
J. Pérez-Pariente  and
M. Vallet-Regí
F. Balas
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia. Universidad Complutense, 28040 Madrid, Spain
D. Arcos
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia. Universidad Complutense, 28040 Madrid, Spain
J. Pérez-Pariente
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia. Universidad Complutense, 28040 Madrid, Spain
M. Vallet-Regí*
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia. Universidad Complutense, 28040 Madrid, Spain
*
a)Address all correspondence to this author.
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Abstract

Five glasses in the system SiO2 · CaO · P2O5 have been synthesised via sol-gel method. The textural properties of the calcined glasses have been studied using mercury intrusion and N2 adsorption porosimetries. The glasses with higher SiO2 content showed lower pore volume, smaller diameters in the meso- and macropore regions, and higher surface areas. The pore morphology in the mesopore range was influenced by the SiO2 content, where there was a transition from ink bottle to cylinder shaped pores.

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Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 5 , May 2001 , pp. 1345 - 1348
Copyright
Copyright © Materials Research Society 2001

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