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Superplastic Extensibility of Nanocrystalline Copper at Room Temperature
Abstract
A bulk nanocrystalline (nc) pure copper with high purity and high density was synthesized by electrodeposition. An extreme extensibility (elongation exceeds 5000%) without a strain hardening effect was observed when the nc copper specimen was rolled at room temperature. Microstructure analysis suggests that the superplastic extensibility of the nc copper originates from a deformation mechanism dominated by grain boundary activities rather than lattice dislocation, which is also supported by tensile creep studies at room temperature. This behavior demonstrates new possibilities for scientific and technological advancements with nc materials.
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Cited by
Paradox of Strength and Ductility in Metals Processed Bysevere Plastic Deformation
Valiev, R. Z., Alexandrov, I. V., Zhu, Y. T., & Lowe, T. C. (2002) · Journal of Materials Research · doi:10.1557/jmr.2002.0002 · Cited by 1,162
Size dependence of nanostructures: Impact of bond order deficiency
Sun, C. Q. (2007) · Progress in Solid State Chemistry · doi:10.1016/j.progsolidstchem.2006.03.001 · Cited by 873
A Direct Grain-Boundary-Activity Correlation for CO Electroreduction on Cu Nanoparticles
Feng, X., Jiang, K., Fan, S., & Kanan, M. W. (2016) · ACS Central Science · doi:10.1021/acscentsci.6b00022 · Cited by 460
Metadata
- Authors
- Lu, L., Sui, M. L., & Lu, K.
- Venue
- Science
- Published
- 2000-02-25
- Volume
- 287
- Issue
- 5457
- Pages
- 1463-1466
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2077324189
- Cited by
- 781
- References
- 0
- FWCI
- 24.35
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Superplastic Extensibility of Nanocrystalline Copper at Room Temperature. https://app.cochat.ai/papers/10.1126/science.287.5457.1463
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- Lu, L., Sui, M. L., & Lu, K. (2000). Superplastic Extensibility of Nanocrystalline Copper at Room Temperature. Science. https://doi.org/10.1126/science.287.5457.1463
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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