2021
DOI: 10.1038/s41467-021-27002-3
|View full text |Cite
|
Sign up to set email alerts
|

Twinning-assisted dynamic adjustment of grain boundary mobility

Abstract: Grain boundary (GB) plasticity dominates the mechanical behaviours of nanocrystalline materials. Under mechanical loading, GB configuration and its local deformation geometry change dynamically with the deformation; the dynamic variation of GB deformability, however, remains largely elusive, especially regarding its relation with the frequently-observed GB-associated deformation twins in nanocrystalline materials. Attention here is focused on the GB dynamics in metallic nanocrystals, by means of well-designed … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

3
10
0

Year Published

2022
2022
2024
2024

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 38 publications
(13 citation statements)
references
References 54 publications
3
10
0
Order By: Relevance
“…To figure out the underlying mechanism regarding the distinct electrochemical performance of smaller and larger sized ZTO, especially the cause of rapid capacity loss in larger sized ZTO, the in situ TEM (Figure S3) is applied to investigate the real-time structural evolutions during the lithiation processes. Interestingly, the different lithiation behaviors of ZTO NWs with sizes ranging from 24 to 162 nm during the first lithiation are revealed (Figure ).…”
Section: Resultsmentioning
confidence: 99%
“…To figure out the underlying mechanism regarding the distinct electrochemical performance of smaller and larger sized ZTO, especially the cause of rapid capacity loss in larger sized ZTO, the in situ TEM (Figure S3) is applied to investigate the real-time structural evolutions during the lithiation processes. Interestingly, the different lithiation behaviors of ZTO NWs with sizes ranging from 24 to 162 nm during the first lithiation are revealed (Figure ).…”
Section: Resultsmentioning
confidence: 99%
“…The occurrence of twinning during corrosion fatigue contributes to energy dissipation 36 . A study by Huang et al 37 highlights that twinning can assist in adjusting the grain boundary structure, allowing for smoother migration of these boundaries and indicating enhanced deformability. Simultaneously, twins can act as obstacles to dislocation motion, providing resistance to crack propagation through deflection along grain boundaries 38 .…”
Section: Discussionmentioning
confidence: 99%
“…[1,3] As an effective method to expose the active sites of catalysts, defect engineering can greatly regulate the surface structure of catalysts, thus regulating the adsorption and reaction rate of intermediates, resulting in significantly improving the catalytic activity of catalysts. [8][9][10][11] However, previous studies have focused on one or both defects in the catalysts, [12][13][14][15][16] such as palladium on alumina with twin boundaries (TBs) by steam treatment exhibiting enhanced catalytic performance in methane CÀ H activation for methane oxidation. [4] A silver catalyst with abundant stacking faults (SFs) was synthesized by a physical technique and applied for hydrogen evolution.…”
Section: Introductionmentioning
confidence: 99%
“…At present, the effective way to overcome the above issues is to add other noble or transition metals to reduce the binding energy of CO intermediates and improve the catalytic activity [1,3] . As an effective method to expose the active sites of catalysts, defect engineering can greatly regulate the surface structure of catalysts, thus regulating the adsorption and reaction rate of intermediates, resulting in significantly improving the catalytic activity of catalysts [8–11] . However, previous studies have focused on one or both defects in the catalysts, [12–16] such as palladium on alumina with twin boundaries (TBs) by steam treatment exhibiting enhanced catalytic performance in methane C−H activation for methane oxidation [4] .…”
Section: Introductionmentioning
confidence: 99%