EFFECTS OF MULTISTEP ANNEALING TREATMENTS ON THE COMPOSITION-DEPENDENT CRYSTAL NUCLEATION IN NA2O-CENTER-DOT-2CAO-CENTER-DOT-3SIO(2) GLASSES

Authors
NARAYAN KL KELTON KF
Citation
Kl. Narayan et Kf. Kelton, EFFECTS OF MULTISTEP ANNEALING TREATMENTS ON THE COMPOSITION-DEPENDENT CRYSTAL NUCLEATION IN NA2O-CENTER-DOT-2CAO-CENTER-DOT-3SIO(2) GLASSES, Acta materialia, 46(9), 1998, pp. 3159-3164
Citations number
19
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Acta materialia → ACNP
ISSN journal
13596454
Volume
46
Issue
9
Year of publication
1998
Pages
3159 - 3164
Database
ISI
SICI code
1359-6454(1998)46:9<3159:EOMATO>2.0.ZU;2-#
Abstract
The first measurements in any system of the effects of multi-step anne aling treatments on the composition/time-dependent nucleation rates ar e presented for Na2O . 2CaO . 3SiO(2) glasses made near the stoichiome tric composition. The experimental results compare well with the time- dependent behavior predicted from the classical theory of nucleation, though small systematic differences suggest possible deviations from t he kinetic model. These studies support an earlier claim that the comp osition dependence of nucleation in this glass is dominated by changes in the crystal-glass interfacial energy. (C) 1998 Acta Metallurgica I nc.