Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16247
Title: Low-dimension self-interstitial diffusion in α-Zr
Authors: Woo, CH
Huang, H
Zhu, WJ
Issue Date: 2003
Publisher: Springer
Source: Applied physics. A, Materials science & processing, 2003, v. 76, no. 1, p. 101-106 How to cite?
Journal: Applied physics. A, Materials science & processing 
Abstract: The mobility of self-interstitials in α-zirconium (α-Zr) is studied with molecular dynamic (MD) and molecular static (MS) simulations, using Ackland's many-body inter-atomic potential. The basal crowdion configuration is found to be the ground state. Four types of diffusion jumps can be identified via MS, in-plane in-line, in-plane off-line, out-of-plane in-line and out-of-plane off-line. The in-plane migration is dominated by one-dimensional crowdion motion along the [112̄0] directions, interrupted from time to time by off-line or out-of-plane jumps. Based on the MS results, the activation energies and pre-exponentials for the diffusion processes are determined by fits to the Arrhenius plots of D c and D a. The diffusional anisotropy factor D c/D a is also obtained, and compares well with experimental results. The mean frequency of each type of jumps is then found using Monte Carlo simulation, and is reported as a function of temperature. The mean lifetime and mean free path of the one-dimensional mobility are then obtained. The 1-D mean free path is found to be unimportant for sink separations involved under the usual irradiation damage conditions.
URI: http://hdl.handle.net/10397/16247
ISSN: 0947-8396
EISSN: 1432-0630
DOI: 10.1007/s00339-002-1443-3
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

12
Last Week
0
Last month
0
Citations as of Aug 14, 2017

WEB OF SCIENCETM
Citations

11
Last Week
0
Last month
0
Citations as of Aug 15, 2017

Page view(s)

17
Last Week
1
Last month
Checked on Aug 13, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.