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An analysis and initial results from a multiscale continuum-atomistic simulation of the Joule heating and melting of Cu-Al asperity contacts are presented. An analytic expression is given for the time needed to reach the Al melting point for an asperity as a function of the voltage drop and the asperity contact area. The coupled continuum-atomistic simulations capture the initial stages of the formation of Al-Cu alloys, which arises from the solvation of Cu atoms into the Al melt. The implications of these results for understanding contacts in electromagnetic launchers are discussed.
Published in:
Magnetics, IEEE Transactions on
(Volume:45
,
Issue:
1
)
Date of Publication: Jan. 2009
- Page(s):
- 331 - 335
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 10623513
- Digital Object Identifier :
- 10.1109/TMAG.2008.2008544
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 03 February 2009
- Issue Date :
- Jan. 2009
- Sponsored by :
- IEEE Magnetics Society
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