Room-temperature oxygen vacancy migration induced reversible phase transformation during the anelastic deformation in CuO

Lei Li, Guoxujia Chen, He Zheng (), Weiwei Meng, Shuangfeng Jia, Ligong Zhao, Peili Zhao, Ying Zhang, Shuangshuang Huang, Tianlong Huang and Jianbo Wang ()
Additional contact information
Lei Li: Wuhan University
Guoxujia Chen: Wuhan University
He Zheng: Wuhan University
Weiwei Meng: Wuhan University
Shuangfeng Jia: Wuhan University
Ligong Zhao: Wuhan University
Peili Zhao: Wuhan University
Ying Zhang: Wuhan University
Shuangshuang Huang: Wuhan University
Tianlong Huang: Wuhan University
Jianbo Wang: Wuhan University

Nature Communications, 2021, vol. 12, issue 1, 1-7

Abstract: Abstract From the mechanical perspectives, the influence of point defects is generally considered at high temperature, especially when the creep deformation dominates. Here, we show the stress-induced reversible oxygen vacancy migration in CuO nanowires at room temperature, causing the unanticipated anelastic deformation. The anelastic strain is associated with the nucleation of oxygen-deficient CuOx phase, which gradually transforms back to CuO after stress releasing, leading to the gradual recovery of the nanowire shape. Detailed analysis reveals an oxygen deficient metastable CuOx phase that has been overlooked in the literatures. Both theoretical and experimental investigations faithfully predict the oxygen vacancy diffusion pathways in CuO. Our finding facilitates a better understanding of the complicated mechanical behaviors in materials, which could also be relevant across multiple scientific disciplines, such as high-temperature superconductivity and solid-state chemistry in Cu-O compounds, etc.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-24155-z Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-24155-z

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-24155-z

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().