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Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids

Mechanisms of the formation of nanoparticles of some B2 shape memory intermetallic compounds, glass-forming Zr-based alloy, and pure Ti obtained by spark erosion method in liquid nitrogen and argon are considered. One of peculiarity is a foam-like structure, which covers the surface of micron-sized...

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Autor principal: Monastyrsky, Gennady
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4695476/
https://www.ncbi.nlm.nih.gov/pubmed/26714865
http://dx.doi.org/10.1186/s11671-015-1212-9
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author Monastyrsky, Gennady
author_facet Monastyrsky, Gennady
author_sort Monastyrsky, Gennady
collection PubMed
description Mechanisms of the formation of nanoparticles of some B2 shape memory intermetallic compounds, glass-forming Zr-based alloy, and pure Ti obtained by spark erosion method in liquid nitrogen and argon are considered. One of peculiarity is a foam-like structure, which covers the surface of micron-sized particles that appear during spark erosion. Such morphology is related to the nanosized particles gathered in agglomerates. Detailed examination of those particles allows proposed several mechanisms of their formation. The mechanisms explains two kinds of nanosized particles: particles of several tens and even hundreds of nanometers are formed due to explosion of molten droplets while the smaller particles having in turn a different structure and morphology are formed as a result of condensation of evaporated constituents under different conditions. The latter have the composition usually different from the target composition while the composition of the former is very close to the target (master alloy) composition.
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spelling pubmed-46954762016-01-08 Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids Monastyrsky, Gennady Nanoscale Res Lett Nano Express Mechanisms of the formation of nanoparticles of some B2 shape memory intermetallic compounds, glass-forming Zr-based alloy, and pure Ti obtained by spark erosion method in liquid nitrogen and argon are considered. One of peculiarity is a foam-like structure, which covers the surface of micron-sized particles that appear during spark erosion. Such morphology is related to the nanosized particles gathered in agglomerates. Detailed examination of those particles allows proposed several mechanisms of their formation. The mechanisms explains two kinds of nanosized particles: particles of several tens and even hundreds of nanometers are formed due to explosion of molten droplets while the smaller particles having in turn a different structure and morphology are formed as a result of condensation of evaporated constituents under different conditions. The latter have the composition usually different from the target composition while the composition of the former is very close to the target (master alloy) composition. Springer US 2015-12-29 /pmc/articles/PMC4695476/ /pubmed/26714865 http://dx.doi.org/10.1186/s11671-015-1212-9 Text en © Monastyrsky. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Monastyrsky, Gennady
Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids
title Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids
title_full Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids
title_fullStr Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids
title_full_unstemmed Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids
title_short Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids
title_sort nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquids
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4695476/
https://www.ncbi.nlm.nih.gov/pubmed/26714865
http://dx.doi.org/10.1186/s11671-015-1212-9
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