By Topic

Yield Behavior of Dislocation‐Free Germanium from 500°C to the Vicinity of the Melting Point

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

2 Author(s)
Patel, J.R. ; Bell Telephone Laboratories, Incorporated, Murray Hill, New Jersey ; Freeland, P.E.

Your organization might have access to this article on the publisher's site. To check, click on this link: 

The yield behavior of dislocation‐free germanium has been measured over its entire plastic range. Crystals of germanium were stressed in tension from 500°C, where the crystals first deform without fracture, to 930°C (7°C below the melting point). Over this entire range a pronounced yield drop is observed. The shapes of the stress‐strain curves at the highest and lowest test temperatures are remarkably similar even though the magnitudes differ by about a factor of 40. Both the maximum and flow stresses decrease exponentially with temperature and follow a relation of the form τ = A exp (E/kT). The maximum and flow stresses also were measured at constant temperature over two orders of magnitude change in strain rate. The results are compared with the theoretical predictions of the temperature and strain‐rate dependence of the maximum and flow stresses.

Published in:

Journal of Applied Physics  (Volume:38 ,  Issue: 8 )