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  An energy approach to predict electromigration induced grain rotation under high current density

Wang, Y., & Yao, Y. (2019). An energy approach to predict electromigration induced grain rotation under high current density. Theoretical and Applied Mechanics Letters, 9(1), 21-26. doi:10.1016/j.taml.2019.01.002.

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An energy approach to predict electromigration induced grain rotation under high current density _ Elsevier Enhanced Reader.pdf (Supplementary material), 2MB
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An energy approach to predict electromigration induced grain rotation under high current density _ Elsevier Enhanced Reader.pdf
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Wang, Yuexing1, Author              
Yao, Yao2, 3, Author              
Affiliations:
1Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China, ou_persistent22              
2School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an, 710072, China, ou_persistent22              
3Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863398              

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 Abstract: An energy approach is proposed to describe the electromigration induced grain rotation under high current density. The driving force is assumed to arise from the grain-boundary energy reduction and increase of the inner energy from the joule heating. Energy dissipates by the grain boundary diffusion under electromigration and viscous boundary sliding is considered. Based on the conservation of energy production and dissipation, an equilibrium equation is developed to predict the grain rotation rate analytically. It is recognized that the grain rotates with the reducing of electrical resistivity and inversely proportional to the grain length. The theoretical prediction is compared with the experimental data, which shows good accuracy on the rotation trend and the specific rotation rate. © 2019 The Authors. Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics

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Language(s): eng - English
 Dates: 2019-01
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.taml.2019.01.002
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Title: Theoretical and Applied Mechanics Letters
Source Genre: Journal
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Publ. Info: Elsevier Ltd
Pages: - Volume / Issue: 9 (1) Sequence Number: - Start / End Page: 21 - 26 Identifier: ISSN: 20950349