[1] Ohio State University, Coll. of Dent., 305 W. 12th Avenue, Columbus, OH 43210, United States
[2] Lab. de Chim. Appl. de l'Etat Solide, Ecl. Natl. Sup. Chim. Paris, 11 R., Paris, France
[3] Lab. de Metall. Structurale, Ecl. Natl. Sup. Chim. Paris, 11 R., Paris, France