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Teplofizika vysokikh temperatur, 2016, Volume 54, Issue 6, Pages 960–962
DOI: https://doi.org/10.7868/S0040364416060077
(Mi tvt9074)
 

This article is cited in 7 scientific papers (total in 7 papers)

Short Communications

Anomalous behavior of optical density of iron nanoparticles heated behind shock waves

E. V. Gurentsov, A. V. Eremin, E. Yu. Mikheeva, S. A. Musikhin

Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow
Full-text PDF (275 kB) Citations (7)
References:
Abstract: Nonmonotonous variation of the optical properties of iron nanoparticles with a temperature increase during heating behind reflected shock waves is discovered. Iron nanoparticles, within $12$ nm in size, were formed at $0.5$$1\%\,\rm Fe(CO)_5$ pyrolysis in argon behind the incident shock waves. Using a laser extinction method, a variation of the volume fraction of the condensed phase was registered at the main wavelength of $633$ nm and, in several experiments, at the additional wavelengths of $405$, $520$, and $850$ nm. At the second heating of the produced nanoparticles behind the reflected shock waves within the temperature range $800$$1500$ K, the function of the complex refractive index, $E(m)$, decreased at all the wavelengths. Within the temperature range of $1500$$2250$ K, it increased with the temperature increase behind the reflected shock wave almost up to the values that we observed behind the incident shock wave. At the temperatures above $2250$ K, due to the essential evaporation of the iron nanoparticle material, the optical properties were not measured. The iron nanoparticle $E(m)$ variations within the temperature range $800$$2250$ K are possibly related to their structure variations.
Funding agency Grant number
Russian Science Foundation 14-50-00124
The work is supported by the Russian Science Foundation, project no 14-50-00124.
Received: 12.10.2015
Accepted: 22.12.2015
English version:
High Temperature, 2016, Volume 54, Issue 6, Pages 902–904
DOI: https://doi.org/10.1134/S0018151X16060079
Bibliographic databases:
Document Type: Article
UDC: 538.958
PACS: 36.40.Vz
Language: Russian
Citation: E. V. Gurentsov, A. V. Eremin, E. Yu. Mikheeva, S. A. Musikhin, “Anomalous behavior of optical density of iron nanoparticles heated behind shock waves”, TVT, 54:6 (2016), 960–962; High Temperature, 54:6 (2016), 902–904
Citation in format AMSBIB
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  • This publication is cited in the following 7 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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