Liquid phase separation in the systems TeO2-B2O3-M2O3 (M2O3 = Al2O3, Ga2O3, Sc2O3, La2O3, Bi2O3)

Authors
Kashchieva, E Pankova, M Dimitriev, Y
Citation
E. Kashchieva et al., Liquid phase separation in the systems TeO2-B2O3-M2O3 (M2O3 = Al2O3, Ga2O3, Sc2O3, La2O3, Bi2O3), CERAM-SILIK, 45(3), 2001, pp. 111-114
Citations number
19
Categorie Soggetti
Material Science & Engineering
Journal title
CERAMICS-SILIKATY
ISSN journal
08625468 → ACNP
Volume
45
Issue
3
Year of publication
2001
Pages
111 - 114
Database
ISI
SICI code
0862-5468(2001)45:3<111:LPSITS>2.0.ZU;2-X
Abstract
Liquid phase separation was studied in three component systems TeO2-B2O3-M2 O3, where M2O3 = Al2O3, Ga2O3, Sc2O3, La2O3 and Bi2O3. The boundaries betwe en one- and two-phase glasses were determined. Near these boundaries differ ent cases of microheterogeneous structure as a result of metastable immisci bility were established by transmission electron microscopy (TEM). IR data analysis indicated that the existence of homogeneous glasses is related wit h the simultaneous participation of BO3- and BO4-groups in the glassy netwo rk.