ISSN:
1600-5767
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Geosciences
,
Physics
Notes:
Load-bearing craze fibrils are fundamental to the ability of many polymer materials to support applied tensile stress. Three models of the scattering from craze-fibril structures have been compared through a rigorous analysis procedure. The results indicate that a diffuse-boundary model provides a more accurate description of scattering from the fibril structure than the standard Porod-law technique. Previously reported methods for determining fibril diameters were found to be inappropriate for high-impact polystyrene (HIPS) materials, overestimating the fibril diameters by as much as 60%. Indirect transforms using regularization theory of the fibril scattering data provide confirmation of the fibril diameters obtained from a power-law diffuse-boundary model, which is developed specifically for the craze-fibril structure of interest.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0021889898010486
Permalink