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Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites

The effect of the size of nickel nanoparticles on the fabrication of a Ni–graphene composite by hydrostatic pressure at 0 K followed by annealing at 1000 and 2000 K is studied by molecular dynamics simulation. Crumpled graphene, consisting of crumpled graphene flakes interconnected by van der Waals...

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Detalles Bibliográficos
Autores principales: Krylova, Karina A., Safina, Liliya R., Murzaev, Ramil T., Baimova, Julia A., Mulyukov, Radik R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8201006/
https://www.ncbi.nlm.nih.gov/pubmed/34200067
http://dx.doi.org/10.3390/ma14113087
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author Krylova, Karina A.
Safina, Liliya R.
Murzaev, Ramil T.
Baimova, Julia A.
Mulyukov, Radik R.
author_facet Krylova, Karina A.
Safina, Liliya R.
Murzaev, Ramil T.
Baimova, Julia A.
Mulyukov, Radik R.
author_sort Krylova, Karina A.
collection PubMed
description The effect of the size of nickel nanoparticles on the fabrication of a Ni–graphene composite by hydrostatic pressure at 0 K followed by annealing at 1000 and 2000 K is studied by molecular dynamics simulation. Crumpled graphene, consisting of crumpled graphene flakes interconnected by van der Waals forces is chosen as the matrix for the composite and filled with nickel nanoparticles composed of 21 and 47 atoms. It is found that the main factors that affect composite fabrication are nanoparticle size, the orientation of the structural units, and temperature of the fabrication process. The best stress–strain behavior is achieved for the Ni/graphene composite with Ni [Formula: see text] nanoparticle after annealing at 2000 K. However, all of the composites obtained had strength property anisotropy due to the inhomogeneous distribution of pores in the material volume.
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spelling pubmed-82010062021-06-15 Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites Krylova, Karina A. Safina, Liliya R. Murzaev, Ramil T. Baimova, Julia A. Mulyukov, Radik R. Materials (Basel) Article The effect of the size of nickel nanoparticles on the fabrication of a Ni–graphene composite by hydrostatic pressure at 0 K followed by annealing at 1000 and 2000 K is studied by molecular dynamics simulation. Crumpled graphene, consisting of crumpled graphene flakes interconnected by van der Waals forces is chosen as the matrix for the composite and filled with nickel nanoparticles composed of 21 and 47 atoms. It is found that the main factors that affect composite fabrication are nanoparticle size, the orientation of the structural units, and temperature of the fabrication process. The best stress–strain behavior is achieved for the Ni/graphene composite with Ni [Formula: see text] nanoparticle after annealing at 2000 K. However, all of the composites obtained had strength property anisotropy due to the inhomogeneous distribution of pores in the material volume. MDPI 2021-06-04 /pmc/articles/PMC8201006/ /pubmed/34200067 http://dx.doi.org/10.3390/ma14113087 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Krylova, Karina A.
Safina, Liliya R.
Murzaev, Ramil T.
Baimova, Julia A.
Mulyukov, Radik R.
Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites
title Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites
title_full Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites
title_fullStr Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites
title_full_unstemmed Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites
title_short Effect of Nanoparticle Size on the Mechanical Strength of Ni–Graphene Composites
title_sort effect of nanoparticle size on the mechanical strength of ni–graphene composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8201006/
https://www.ncbi.nlm.nih.gov/pubmed/34200067
http://dx.doi.org/10.3390/ma14113087
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