Nucleation kinetics of sodium disilicate |
| |
Authors: | L.C. Klein C.A. Handwerker D.R. Uhlmann |
| |
Affiliation: | Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA |
| |
Abstract: | The kinetics of crystal nucleation in Na2O · 2SiO2 have been determined over the range of undercoolings between 173 and 373°C. The plot of log(Iv?) versus is a straight line of negative slope over some 13 orders of magnitude in Iv. The slope of this relation indicates a nucleation barrier of about 45 kT at ΔTr = 0.2, and the intercept at is 1026 cm-3 sec-1. poise. The results are in good agreement with predictions of the theory of homogeneous nucleation, even in the pre-exponential factor. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|