Nonisothermal nucleation in a solid solution of CuCl in glass: Concentration effect upon heating of the solid solution

作者：Leiman V I^*; Ashkalunin A L; Derkacheva O Yu; Maksimov V M

来源：Physics of the Solid State, 2017, 59(9): 1836-1840.

DOI：10.1134/S1063783417090177

The influence of the heating rate of a solid solution of CuCl in glass on the size distribution of the produced CuCl nanoparticles is studied. The distribution curves of CuCl nanocrystals are determined by the method of exciton-thermal analysis. It is established that the concentration of CuCl nanoparticles increases by ten times upon slowing the sample heating process from 2 to 60 min, while the mean radius of particles decreases almost twice. The concentration of CuCl nanoparticles passes through a maximum in the process of heating the sample. The numerical simulation of the nucleation upon slow heating of a solid solution showed that the formation of the concentration maximum of the new phase clusters is determined by a rapid increase in the critical radius owing to an increase in temperature and decrease in the solution supersaturation. As a result, the formation of new phase nuclei ceases at a certain temperature, and a part of the previously formed clusters dissolves.

• 出版日期2017-9