THE ROLE OF ADDITIVES IN A COMPLEX LITHIUM SILICATE GLASS-CERAMIC

Authors
DAS RN CHANDRASEKHAR BK RAO KJ
Citation
Rn. Das et al., THE ROLE OF ADDITIVES IN A COMPLEX LITHIUM SILICATE GLASS-CERAMIC, Bulletin of Materials Science, 17(1), 1994, pp. 59-72
Citations number
14
Categorie Soggetti
Material Science
Journal title
Bulletin of Materials Science → ACNP
ISSN journal
02504707
Volume
17
Issue
1
Year of publication
1994
Pages
59 - 72
Database
ISI
SICI code
0250-4707(1994)17:1<59:TROAIA>2.0.ZU;2-T
Abstract
Several glass-ceramic compositions based on lithium silicates have bee n examined using thermal expansivity, X-ray diffraction, electrical co nductivity, electron microscopy and solid state NMR studies. Role of P 2O5 in nucleation and of Al2O3 in smoothening expansion behaviour have been particularly highlighted. Magic angle spinning NMR has been used to ascertain presence of Al in tetrahedral positions in the glassy ph ase.