1. Biljana Maksimović, Fizički fakultet, Serbia
2. Mićo Mitrović, Fizički fakultet, Serbia
3. Branislava Misailović, Fizički fakultet, Serbia
4. Vesna Čvorić, Fizički fakultet, Serbia
5. Andrijana Žekić, Fizički fakultet, Serbia
Crystal growth rate dispersion and the effect of external parameters on them still represents a subject of current researches. Results of investigation of the effect of cooling of aqueous solutions from 35.0 and 50.0°C to crystal growth temperature of 30.0°C on growth rate distribution of small Rochelle salt crystals are presented in this paper. Obtained results indicate that the range of possible growth rates depends on the pre-treatment of the solution. Exposing the solution to high temperatures of 50.0°C and slowly temperature decreasing reduces the probability of nucleation and growth of crystals which grew at rates higher than 60 nm/s, whereas the treatment of a solution from 35.0°C reduces the probability of nucleation and growth of crystals which grew at rates smaller than 10 nm/s. Growth rate dispersions are described by normal distribution, and position of distribution maximum is shifted toward lower rates for cooling a solution from 35.0°C. Results will be discussed in accordance with existing theories of crystal growth.
Key words :
Thematic field:
SIMPOZIJUM A - Nauka materije, kondenzovane materije i fizika čvrstog stanja
Date:
29.06.2016.
Contemporary Materials 2016 - Savremeni Materijali
Paper file
(69.00 KB)
