Size-dependent deformation mechanisms in hollow silicon nanoparticles
Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavio...
Ausführliche Beschreibung
Autor*in: |
L. Yang [verfasserIn] J. J. Bian [verfasserIn] H. Zhang [verfasserIn] X. R. Niu [verfasserIn] G. F. Wang [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2015 |
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Übergeordnetes Werk: |
In: AIP Advances - AIP Publishing LLC, 2011, 5(2015), 7, Seite 077162-077162-7 |
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Übergeordnetes Werk: |
volume:5 ; year:2015 ; number:7 ; pages:077162-077162-7 |
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DOI / URN: |
10.1063/1.4927509 |
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Katalog-ID: |
DOAJ018822614 |
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10.1063/1.4927509 doi (DE-627)DOAJ018822614 (DE-599)DOAJ5c0e2663df9449ffba50b7d43bd2b447 DE-627 ger DE-627 rakwb eng QC1-999 L. Yang verfasserin aut Size-dependent deformation mechanisms in hollow silicon nanoparticles 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavior of hollow Si NPs. Three distinct failure mechanisms of hollow NPs are uncovered, and their strength and deformability are analyzed quantitatively. For extra-thick-walled NPs, dislocations will nucleate below the contact area and cut through the particles till failure. For mid-thick-walled NPs, however, dislocations will emit from the inner surface and slip towards the outer surface. For thin-walled NPs, elastic buckling is the cause of failure. Compared to solid NPs, hollow NPs with wall thickness being around half of its outer radius can achieve significant improvement in both strength and deformability. Physics J. J. Bian verfasserin aut H. Zhang verfasserin aut X. R. Niu verfasserin aut G. F. Wang verfasserin aut In AIP Advances AIP Publishing LLC, 2011 5(2015), 7, Seite 077162-077162-7 (DE-627)641391706 (DE-600)2583909-3 21583226 nnns volume:5 year:2015 number:7 pages:077162-077162-7 https://doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/article/5c0e2663df9449ffba50b7d43bd2b447 kostenfrei http://dx.doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/toc/2158-3226 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2015 7 077162-077162-7 |
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10.1063/1.4927509 doi (DE-627)DOAJ018822614 (DE-599)DOAJ5c0e2663df9449ffba50b7d43bd2b447 DE-627 ger DE-627 rakwb eng QC1-999 L. Yang verfasserin aut Size-dependent deformation mechanisms in hollow silicon nanoparticles 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavior of hollow Si NPs. Three distinct failure mechanisms of hollow NPs are uncovered, and their strength and deformability are analyzed quantitatively. For extra-thick-walled NPs, dislocations will nucleate below the contact area and cut through the particles till failure. For mid-thick-walled NPs, however, dislocations will emit from the inner surface and slip towards the outer surface. For thin-walled NPs, elastic buckling is the cause of failure. Compared to solid NPs, hollow NPs with wall thickness being around half of its outer radius can achieve significant improvement in both strength and deformability. Physics J. J. Bian verfasserin aut H. Zhang verfasserin aut X. R. Niu verfasserin aut G. F. Wang verfasserin aut In AIP Advances AIP Publishing LLC, 2011 5(2015), 7, Seite 077162-077162-7 (DE-627)641391706 (DE-600)2583909-3 21583226 nnns volume:5 year:2015 number:7 pages:077162-077162-7 https://doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/article/5c0e2663df9449ffba50b7d43bd2b447 kostenfrei http://dx.doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/toc/2158-3226 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2015 7 077162-077162-7 |
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10.1063/1.4927509 doi (DE-627)DOAJ018822614 (DE-599)DOAJ5c0e2663df9449ffba50b7d43bd2b447 DE-627 ger DE-627 rakwb eng QC1-999 L. Yang verfasserin aut Size-dependent deformation mechanisms in hollow silicon nanoparticles 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavior of hollow Si NPs. Three distinct failure mechanisms of hollow NPs are uncovered, and their strength and deformability are analyzed quantitatively. For extra-thick-walled NPs, dislocations will nucleate below the contact area and cut through the particles till failure. For mid-thick-walled NPs, however, dislocations will emit from the inner surface and slip towards the outer surface. For thin-walled NPs, elastic buckling is the cause of failure. Compared to solid NPs, hollow NPs with wall thickness being around half of its outer radius can achieve significant improvement in both strength and deformability. Physics J. J. Bian verfasserin aut H. Zhang verfasserin aut X. R. Niu verfasserin aut G. F. Wang verfasserin aut In AIP Advances AIP Publishing LLC, 2011 5(2015), 7, Seite 077162-077162-7 (DE-627)641391706 (DE-600)2583909-3 21583226 nnns volume:5 year:2015 number:7 pages:077162-077162-7 https://doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/article/5c0e2663df9449ffba50b7d43bd2b447 kostenfrei http://dx.doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/toc/2158-3226 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2015 7 077162-077162-7 |
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10.1063/1.4927509 doi (DE-627)DOAJ018822614 (DE-599)DOAJ5c0e2663df9449ffba50b7d43bd2b447 DE-627 ger DE-627 rakwb eng QC1-999 L. Yang verfasserin aut Size-dependent deformation mechanisms in hollow silicon nanoparticles 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavior of hollow Si NPs. Three distinct failure mechanisms of hollow NPs are uncovered, and their strength and deformability are analyzed quantitatively. For extra-thick-walled NPs, dislocations will nucleate below the contact area and cut through the particles till failure. For mid-thick-walled NPs, however, dislocations will emit from the inner surface and slip towards the outer surface. For thin-walled NPs, elastic buckling is the cause of failure. Compared to solid NPs, hollow NPs with wall thickness being around half of its outer radius can achieve significant improvement in both strength and deformability. Physics J. J. Bian verfasserin aut H. Zhang verfasserin aut X. R. Niu verfasserin aut G. F. Wang verfasserin aut In AIP Advances AIP Publishing LLC, 2011 5(2015), 7, Seite 077162-077162-7 (DE-627)641391706 (DE-600)2583909-3 21583226 nnns volume:5 year:2015 number:7 pages:077162-077162-7 https://doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/article/5c0e2663df9449ffba50b7d43bd2b447 kostenfrei http://dx.doi.org/10.1063/1.4927509 kostenfrei https://doaj.org/toc/2158-3226 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2015 7 077162-077162-7 |
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Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavior of hollow Si NPs. Three distinct failure mechanisms of hollow NPs are uncovered, and their strength and deformability are analyzed quantitatively. For extra-thick-walled NPs, dislocations will nucleate below the contact area and cut through the particles till failure. For mid-thick-walled NPs, however, dislocations will emit from the inner surface and slip towards the outer surface. For thin-walled NPs, elastic buckling is the cause of failure. Compared to solid NPs, hollow NPs with wall thickness being around half of its outer radius can achieve significant improvement in both strength and deformability. |
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Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavior of hollow Si NPs. Three distinct failure mechanisms of hollow NPs are uncovered, and their strength and deformability are analyzed quantitatively. For extra-thick-walled NPs, dislocations will nucleate below the contact area and cut through the particles till failure. For mid-thick-walled NPs, however, dislocations will emit from the inner surface and slip towards the outer surface. For thin-walled NPs, elastic buckling is the cause of failure. Compared to solid NPs, hollow NPs with wall thickness being around half of its outer radius can achieve significant improvement in both strength and deformability. |
abstract_unstemmed |
Even inherently brittle hollow silicon nanoparticles (NPs) can withstand larger strain to failure than solid NPs. However, the influence of wall thickness on the mechanical behavior of hollow Si NPs is not fully understood. Using molecular dynamics simulations, we investigate the compressive behavior of hollow Si NPs. Three distinct failure mechanisms of hollow NPs are uncovered, and their strength and deformability are analyzed quantitatively. For extra-thick-walled NPs, dislocations will nucleate below the contact area and cut through the particles till failure. For mid-thick-walled NPs, however, dislocations will emit from the inner surface and slip towards the outer surface. For thin-walled NPs, elastic buckling is the cause of failure. Compared to solid NPs, hollow NPs with wall thickness being around half of its outer radius can achieve significant improvement in both strength and deformability. |
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