Issue 27, 2020

Anomalous detwinning in constrained Cu nanoparticles

Abstract

In this work, the detwinning process in a 9 nm graphene-constrained Cu nanoparticle was investigated at 1009 °C via in situ high-resolution transmission electron microscopy. Instead of the expected reverse glide of the twinning dislocations, two new twins were formed; the four twin zones rotated synergistically before vanishing. Furthermore, the twin boundary migration energy and the system energy were increased continuously with detwinning. The increased resistance to twin boundary migration in constrained nanoparticles enriches our understanding of the twinning mechanism and may facilitate the design of high-strength and high-ductility nanomaterials.

Graphical abstract: Anomalous detwinning in constrained Cu nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
19 Feb 2020
Accepted
10 Jun 2020
First published
10 Jun 2020

Nanoscale, 2020,12, 14831-14837

Anomalous detwinning in constrained Cu nanoparticles

M. Ge, W. Yuan, K. Wang, J. He, W. Xi and J. Luo, Nanoscale, 2020, 12, 14831 DOI: 10.1039/D0NR01407A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements