Cart (Loading....) | Create Account
Close category search window
 

Plastic‐Flow Rates in Nylon Interpreted in Terms of Dislocation Motion

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Dey, B.N. ; Department of Mining, Metallurgy and Petroleum Engineering, and the Materials Research Laboratory, University of Illinois, Urbana, Illinois

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1709097 

Observations of the propagation of plastic band fronts in nonoriented Nylon 6–10 monofilaments have been made as a function of load and temperature, and analyzed in terms of dislocation dynamics. From the shapes and the velocities of the band fronts, dislocation velocities are estimated and found to have a stress dependence similar to that found for nonpolymeric crystalline materials. The measurements yield the following quantities: characteristic drag parameter (3×109 dyn/cm2), dislocation density (105/cm2), dislocation multiplication coefficient (20/cm), length of propagating front (10-2 cm), and activation energy for the dislocation motion (0.3 eV). The maximum strain required to initiate flow in Nylon is about 40%, independent of the load and strain rate, and in agreement with previous experiments of Milkowitz, and of Williams and Bender. Measurements by Williams and Bender for Nylon 66 have also been analyzed. From the stress dependence of creep incubation times, reasonable values for the mean dislocation velocity in Nylon 66, and the associated activation energy, have been obtained. It is tentatively concluded that the rate of breaking of hydrogen bonds limits dislocation mobility in Nylons 6–10 and 66. The glide system appears to be (100) [001] within the crystallites.

Published in:

Journal of Applied Physics  (Volume:38 ,  Issue: 11 )

Date of Publication:

Oct 1967

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.