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DC Field | Value | Language |
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dc.contributor.author | Daneshian, B | - |
dc.contributor.author | Gaertner, F | - |
dc.contributor.author | Assadi, H | - |
dc.contributor.author | Hoeche, D | - |
dc.contributor.author | Weber, W | - |
dc.contributor.author | Klassen, T | - |
dc.date.accessioned | 2021-12-02T14:21:12Z | - |
dc.date.available | 2021-12-02T14:21:12Z | - |
dc.date.issued | 2021-02-05 | - |
dc.identifier.citation | Daneshian, B., Gaertner, F., Assadi, H., Hoeche, D., Weber, W. and Klassen, T. (2021) 'Size Effects of Brittle Particles in Aerosol Deposition—Molecular Dynamics Simulation', Journal of Thermal Spray Technology, 2021, 30 (3), pp. 503 - 522. doi: 10.1007/s11666-020-01149-9. | en_US |
dc.identifier.issn | 1059-9630 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/23665 | - |
dc.description.abstract | Copyright © The Author(s) 2021. Up to now, the role of particle sizes on the impact behavior of ceramic particles in aerosol deposition not yet fully understood. Hence, with the aim to supply a more general understanding, modeling series of low strain rate compression and high-speed impact were performed by molecular dynamics on single-crystalline particles in sizes of 10-300 nm that are tuned to match mechanical properties of TiO2-anatase. The modeling results reveal that particles with original diameter of 25-75 nm exhibit three different impact behaviors that could be distinguished as (i) rebounding, (ii) bonding and (iii) fragmentation, depending on their initial impact velocity. In contrast, particles larger than 75 nm do not exhibit the bonding behavior. Detailed stress and strain field distributions reveal that combination of “localized inelastic deformation” along the slip systems and “shear localization” cause bonding of the small and large particles to the substrate. The analyses of associated temperature rise by the inelastic deformation revealed that heat diffusion at these small scales depend on size. Whereas small particles could reach a rather homogeneous temperature distribution, the evolved heat in the larger ones keeps rather localized to areas of highest deformation and may support deformation and the formation of dense layers in aerosol deposition. | en_US |
dc.description.sponsorship | young investigator research group FOCUS H2 (BMBF EnMat-514-211). | en_US |
dc.format.extent | 503 - 522 | - |
dc.format.medium | Print-Electronic | - |
dc.language | English | - |
dc.language.iso | en_US | en_US |
dc.publisher | Springer Nature | en_US |
dc.rights | Copyright © The Author(s) 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/. | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | aerosol deposition | en_US |
dc.subject | molecular dynamics | en_US |
dc.subject | nanoparticle | en_US |
dc.subject | size effect | en_US |
dc.subject | TiO2 | en_US |
dc.title | Size Effects of Brittle Particles in Aerosol Deposition—Molecular Dynamics Simulation | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.1007/s11666-020-01149-9 | - |
dc.relation.isPartOf | Journal of Thermal Spray Technology | - |
pubs.issue | 3 | - |
pubs.publication-status | Published | - |
pubs.volume | 30 | - |
dc.identifier.eissn | 1544-1016 | - |
Appears in Collections: | Brunel Centre for Advanced Solidification Technology (BCAST) |
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