Atomistic Investigation on the Blocking Phenomenon of Crack Propagation in Cu Substrate Reinforced by CNT
Abstract
:1. Introduction
2. Details of Molecular Statics Simulations
2.1. Empirical Potentials for Describing Atomic Interactions
2.2. Details of the Simulation Models
3. Results
3.1. Stress–Strain Curves
3.2. Deformation Behaviors of the Cu/CNT Composites
3.3. Failure Properties of the Cu/CNT Composite System
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Cu-Cu | C-C | ||||
---|---|---|---|---|---|
EAM [13] | Experiment [17,18] | REBO [14,15] | Experiment [19,20] | ||
C11 | 170.94 | 170 | Y | 809.36 | 810 ± 410 |
C12 | 122.64 | 122.5 | |||
C44 | 76.18 | 75.8 | |||
Ecoh | −3.54 | −3.54 | Ecoh | −7.40 | −7.41 |
Chiral Index | (4,4) | (7,7) | (10,10) | (13,13) | (16,16) | (19,19) |
---|---|---|---|---|---|---|
Radius (nm) | 0.2757 | 0.4824 | 0.6892 | 0.8959 | 1.1027 | 1.3094 |
Chiral Index | (4,4) | (7,7) | (10,10) | (13,13) | (16,16) | (19,19) |
---|---|---|---|---|---|---|
YMS (GPa) | 52.877 | 54.755 | 56.667 | 57.259 | 58.601 | 59.859 |
r (nm) | 0.2757 | 0.4824 | 0.6892 | 0.8959 | 1.1027 | 1.3094 |
R (nm) | 0.5 | 0.7 | 0.9 | 1.1 | 1.4 | 1.6 |
YCu (GPa) | 49.947 | 49.635 | 49.408 | 48.649 | 48.118 | 47.566 |
ACu (nm2) | 175.148 | 174.394 | 173.389 | 172.132 | 169.776 | 167.891 |
YCNT (GPa) | 860.82 | 844.7 | 827.86 | 818.4 | 812.8 | 809.36 |
ACNT (nm2) | 0.589 | 1.031 | 1.472 | 1.914 | 2.356 | 2.797 |
YRM (GPa) | 52.665 | 54.306 | 55.962 | 57.114 | 58.583 | 60.051 |
Chiral Index | (4,4) | (7,7) | (10,10) | (13,13) | (16,16) | (19,19) | Pure Cu | Experiment [38] |
---|---|---|---|---|---|---|---|---|
Failure Strength (GPa) | 2.471 | 2.551 | 2.678 | 2.671 | 2.691 | 2.755 | 2.098 | 1.01 ± 0.13 |
(J/m2) | 1.355 | 1.368 | 1.377 | 1.394 | 1.402 | 1.412 | 1.342 |
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Shim, J.S.; Beom, H.G. Atomistic Investigation on the Blocking Phenomenon of Crack Propagation in Cu Substrate Reinforced by CNT. Nanomaterials 2023, 13, 575. https://doi.org/10.3390/nano13030575
Shim JS, Beom HG. Atomistic Investigation on the Blocking Phenomenon of Crack Propagation in Cu Substrate Reinforced by CNT. Nanomaterials. 2023; 13(3):575. https://doi.org/10.3390/nano13030575
Chicago/Turabian StyleShim, Jee Soo, and Hyeon Gyu Beom. 2023. "Atomistic Investigation on the Blocking Phenomenon of Crack Propagation in Cu Substrate Reinforced by CNT" Nanomaterials 13, no. 3: 575. https://doi.org/10.3390/nano13030575