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

Kinking and the Fracture of Ionic Solids

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

3 Author(s)
Stokes, R.J. ; Honeywell Research Center, Hopkins, Minnesota ; Johnston, T.L. ; Li, C.H.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1728529 

A single crystal undergoing plastic bending develops constraints due to the gradient in lateral contraction across the beam. These constraints result in lateral stresses which may be relieved by the process of anticlastic kinking. Anticlastic kink boundaries in rocksalt structure solids consist of arrays of {121}〈110〉 edge dislocations formed by the interaction of two systems of {110}〈110〉 glide dislocations, one system being responsible for slip in the main part of the crystal beam, the other confined to its corner. Temperature affects the structure of kink boundaries and their subsequent role in initiating fracture. I. At high temperatures (∼0.3 Tm). The resultant edge dislocations in the boundary can move over their {121} slip planes and the kinks become sharp. The resultant dislocations are ineffective barriers to slip and the crystals are ductile. II. At low temperatures (∼0.1–0.2 Tm). The resultant edge dislocations are immobile and the kinks consist of a diffuse array. The resultant dislocations provide strong barriers to slip and cracks nucleate at the kink boundary. III. At very low temperatures (∼0.1 Tm). Fracture occurs before the second set of {110}〈110〉 glide dislocations have been activated to generate anticlastic kinks. Relaxation of the lateral stress results in a complex fracture.

Published in:

Journal of Applied Physics  (Volume:33 ,  Issue: 1 )

Date of Publication:

Jan 1962

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.