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Título: | Universal deformation pathways and flexural hardening of nanoscale 2D-material standing folds. |
Autor(es): | Chacham, Helio Barboza, Ana Paula Moreira Oliveira, Alan Barros de Oliveira, Camilla Karla Brites Queiroz Martins de Batista, Ronaldo Junio Campos Neves, Bernardo Ruegger Almeida |
Palavras-chave: | 2D materials Scanning probe microscopy Molecular dynamics |
Data do documento: | 2018 |
Referência: | CHACHAM, H. et al. Universal deformation pathways and flexural hardening of nanoscale 2D-material standing folds. Nanotechnology, v. 29, n. 9, p. 095704, 2018. Disponível em: <http://iopscience.iop.org/article/10.1088/1361-6528/aaa51e/meta>. Acesso em: 16 jun. 2018. |
Resumo: | In the present work, we use atomic force microscopy nanomanipulation of 2D-material standing folds to investigate their mechanical deformation. Using graphene, h-BN and talc nanoscale wrinkles as testbeds, universal force–strain pathways are clearly uncovered and well-accounted for by an analytical model. Such universality further enables the investigation of each fold bending stiffness κ as a function of its characteristic height h 0. We observe a more than tenfold increase of κ as h 0 increases in the 10–100 nm range, with power-law behaviors of κ versus h 0 with exponents larger than unity for the three materials. This implies anomalous scaling of the mechanical responses of nano-objects made from these materials. |
URI: | http://www.repositorio.ufop.br/handle/123456789/10450 |
Link para o artigo: | http://iopscience.iop.org/article/10.1088/1361-6528/aaa51e/meta |
ISSN: | 13616528 |
Aparece nas coleções: | DEFIS - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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ARTIGO_UniversalDeformationPathways.pdf Restricted Access | 1,45 MB | Adobe PDF | Visualizar/Abrir |
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