Nonisothermal nucleation in the CuCl solid solution in glass: Dissolution of subcritical CuCl nuclei with a positive jump of the nucleation temperature

Autor: P. M. Valov, V. M. Maksimov, E. S. Markov, O. Yu. Derkacheva, V. I. Leiman
Rok vydání: 2013
Předmět:
Zdroj: Physics of the Solid State. 55:1252-1257
ISSN: 1090-6460
1063-7834
Popis: The processes of nucleation in a CuCl solid solution in glass with a positive temperature jump from T1 = 500°C to T2 = 550, 600, and 650°C have been investigated using optical spectroscopy and exciton-thermal analysis. The dissolution of a part of the particles of the CuCl nanomelt formed previously at T1 has been observed at T2. Variations in the shape of the radius distribution curve of the CuCl particles due to the dissolution of initial nuclei have been determined from the melting kinetics of CuCl particles during linear heating of the sample. The nonisothermal nucleation of CuCl in glass under conditions of the temperature jump has been simulated numerically. The results of calculations of the variations in the radius distribution of CuCl particles are in agreement with the experiment. The calculated data on the variation in time of the critical radius rc and the concentration of CuCl monomers in glass after the temperature jump have been obtained.
Databáze: OpenAIRE