ISSN:
1435-1536
Keywords:
Primary nucleation
;
spherulitic pattern
;
distributions of distances
;
statistical approach
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A new statistical approach was applied for the description of spherulite patterns for athermal and thermal type of primary nucleation. The two-and three-dimensional cases were treated in the same way. The analytical expressions were developed for spherulite boundary and inner point distances distributions. It was shown that in the case of the thermal nucleation the nuclei distance are correlated although they were nucleated in a random way. The results were confirmed by the data from computer simulation. The analysis of the theoretical formulas showed that the spherulite pattern remains unchanged if the primary nucleation density is constant (the growth rate can vary) in the case of the athermal nucleation. In the case of the thermal nucleation if the ratio of the nucleation rate and growth rate does not change (both can vary but the ratio must remain constant) the spherulite pattern is not modified.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01411511
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