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Large-scale production of nano-twinned, ultrafine-grained copper

✍ Scribed by A.M. Hodge; Y.M. Wang; T.W. Barbee Jr.


Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
438 KB
Volume
429
Category
Article
ISSN
0921-5093

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✦ Synopsis


Large-scale production of high purity (99.999%), nano-twinned, and ultrafine-grained copper foils (22 m thick) was successfully implemented by the use of nanoscale multilayer technology. The process allows the production of up to fourteen 10 cm diameter foils during a single deposition run with high levels of reproducibility. Mechanical tests demonstrate that the strength of the Cu foils (σ y ∼ 540-690 MPa) compares favorably to ultrafine-grained copper samples produced by other methods.