Computing and Library Services - delivering an inspiring information environment

Response of helium bubbles in gold to displacement-cascade damage

Donnelly, S. E., Birtcher, R., Templier, C. and Vishnyakov, Vladimir (1995) Response of helium bubbles in gold to displacement-cascade damage. Physical Review B, 52 (6). pp. 3970-3975. ISSN 0163-1829

Metadata only available from this repository.


Evolution of He bubbles in Au has been followed with in situ electron microscopy during 400 keV Ar ion irradiation at 500 K. He bubbles were produced by implantation at 500 K of 3 keV He ions into prethinned Au samples that were then annealed to 670 K. During Ar irradiation, bubbles undergo athermal migration, coalescence, and disintegration. The bubbles after annealing were underpressurized, but Ar irradiation brought the bubbles to equilibrium pressure after a dose of 0.6 displacements per atom (dpa). Bubble behavior can be understood on the basis of their interactions with adjacent cascades. We propose that a discrete bubble jump is induced by the melt zone formed during the thermal spike phase of a contiguous cascade. The rate of bubble migration is modeled with the assumption that the jump distance is determined by the bubble and cascade volumes.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Computing and Engineering > Electron Microscopy and Materials Analysis
Related URLs:
Depositing User: Graeme Greaves
Date Deposited: 02 Oct 2013 10:33
Last Modified: 09 Oct 2014 10:40


Downloads per month over past year

Repository Staff Only: item control page

View Item View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©