Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 1961 Aug 1;65A(4):297–336. doi: 10.6028/jres.065A.035

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

The Journal of Research of the National Bureau of Standards Section A is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.

PMC Copyright notice

(a)Lamella with folded coherent nucleus of length l, width a, and monomolecular layer thickness b₀ on its surface. Heavy arrow marked G, indicates direction of radial growth of lamellar spherulite. Arrow s−s′ indicates axis of spiral dislocation. Chain y−y′ indicates molecule incorporated bundle fashion into lamella.

(b)Schematic diagram illustrating cause of a certain value of the step height, l*, giving maximum surface nucleation rate.

(c) Logarithm of radial growth rate of spherulite as function of temperature.––––log G versus T if jump rate effect is small;——most representative case where jump rate lowers log G causing maximum to appear near (T_m+T_g)/2;…. exhibits effect of excess nucleation rate in medium surrounding spherulite.