Crystal nucleation in silicate glasses: the temperature and size dependence of crystal/liquid surface energy

摘要: Abstract The most basic assumption of the classical nucleation theory (CNT) is to treat nucleus/liquid surface energy, σ , as a macroscopic property having value equal that planar interface, ∞ . Therefore, when CNT used analyze experimental data, size dependence energy often neglected. To date, there has been no reliable method measure interface except by fitting rate data theory. In this case, one obtains critical nuclei function temperature. However, fitted ( T ) arises from two different factors: temperature for and its dependence. This paper focuses on decoupling it dependent part. Tolman’s equation was eliminate published stoichiometric silicate glasses (Li 2 O · 2SiO Na O · 2CaO · 3SiO ). It shown Tolman parameter may be chosen so tension decreases with temperature; d /d obtained in way close theoretical predictions.