Influence of the Amount of Fe2O3Modifier on the Oxidation Rate of ASD-4 Micron-Sized Powder

V. G. Shevchenko; V. N. Krasil’nikov; D. A. Eselevich; A. V. Konyukova; Z. S. Vinokurov; A. I. Ancharov; B. P. Tolochko

doi:10.1134/S0010508220020069

Influence of the Amount of Fe₂O₃Modifier on the Oxidation Rate of ASD-4 Micron-Sized Powder

V. G. Shevchenko, V. N. Krasil’nikov, D. A. Eselevich, A. V. Konyukova, Z. S. Vinokurov, A. I. Ancharov, B. P. Tolochko

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of the modification of ASD-4 micron-sized aluminum powder by iron oxide on its oxidation in air was investigated. The metal particle surface was modified by coating with a gel based on Fe(OH)(HCOO)₂ and ethylene glycol monomethyl ether, CH₃OC₂H₄OH, with subsequent heat treatment in air. It was found that the presence of iron oxide generally had a positive effect on the oxidation dynamics of ASD-4 powder under heating in air. The oxidation rate of modified powders increases with increasing content of iron oxide in them. X-ray diffraction analysis using a synchrotron radiation source under heating to 1000°C showed the presence of only the basic phases of γ-Al₂O₃and α-Al₂O₃, γ-Fe₂O₃, and α-Fe₂O₃in the samples, and other iron oxides or intermetallic compounds were not detected. At a mass concentration of 10% Fe, an earlier appearance of the α-Al₂O₃phase was observed and the exothermic heat release peak was shifted to lower temperatures (893°C) compared to the unmodified ASD-4 powder (1045°C).

Original language	English
Pages (from-to)	156-162
Number of pages	7
Journal	Combustion, Explosion and Shock Waves
Volume	56
Issue number	2
DOIs	https://doi.org/10.1134/S0010508220020069
Publication status	Published - 1 Mar 2020

Keywords

aluminum
basic iron formate
iron oxides
modification
oxidation
phase analysis
powder

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10.1134/S0010508220020069

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@article{6a1cc0d70efd4dc7b11fe5d653a02928,

title = "Influence of the Amount of Fe2O3Modifier on the Oxidation Rate of ASD-4 Micron-Sized Powder",

abstract = "The effect of the modification of ASD-4 micron-sized aluminum powder by iron oxide on its oxidation in air was investigated. The metal particle surface was modified by coating with a gel based on Fe(OH)(HCOO)2 and ethylene glycol monomethyl ether, CH3OC2H4OH, with subsequent heat treatment in air. It was found that the presence of iron oxide generally had a positive effect on the oxidation dynamics of ASD-4 powder under heating in air. The oxidation rate of modified powders increases with increasing content of iron oxide in them. X-ray diffraction analysis using a synchrotron radiation source under heating to 1000°C showed the presence of only the basic phases of γ-Al2O3and α-Al2O3, γ-Fe2O3, and α-Fe2O3in the samples, and other iron oxides or intermetallic compounds were not detected. At a mass concentration of 10% Fe, an earlier appearance of the α-Al2O3phase was observed and the exothermic heat release peak was shifted to lower temperatures (893°C) compared to the unmodified ASD-4 powder (1045°C).",

keywords = "aluminum, basic iron formate, iron oxides, modification, oxidation, phase analysis, powder",

author = "Shevchenko, {V. G.} and Krasil{\textquoteright}nikov, {V. N.} and Eselevich, {D. A.} and Konyukova, {A. V.} and Vinokurov, {Z. S.} and Ancharov, {A. I.} and Tolochko, {B. P.}",

year = "2020",

month = mar,

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journal = "Combustion, Explosion and Shock Waves",

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publisher = "Springer New York",

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}

Influence of the Amount of Fe₂O₃Modifier on the Oxidation Rate of ASD-4 Micron-Sized Powder. / Shevchenko, V. G.; Krasil’nikov, V. N.; Eselevich, D. A.; Konyukova, A. V.; Vinokurov, Z. S.; Ancharov, A. I.; Tolochko, B. P.

In: Combustion, Explosion and Shock Waves, Vol. 56, No. 2, 01.03.2020, p. 156-162.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Influence of the Amount of Fe2O3Modifier on the Oxidation Rate of ASD-4 Micron-Sized Powder

AU - Shevchenko, V. G.

AU - Krasil’nikov, V. N.

AU - Eselevich, D. A.

AU - Konyukova, A. V.

AU - Vinokurov, Z. S.

AU - Ancharov, A. I.

AU - Tolochko, B. P.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - The effect of the modification of ASD-4 micron-sized aluminum powder by iron oxide on its oxidation in air was investigated. The metal particle surface was modified by coating with a gel based on Fe(OH)(HCOO)2 and ethylene glycol monomethyl ether, CH3OC2H4OH, with subsequent heat treatment in air. It was found that the presence of iron oxide generally had a positive effect on the oxidation dynamics of ASD-4 powder under heating in air. The oxidation rate of modified powders increases with increasing content of iron oxide in them. X-ray diffraction analysis using a synchrotron radiation source under heating to 1000°C showed the presence of only the basic phases of γ-Al2O3and α-Al2O3, γ-Fe2O3, and α-Fe2O3in the samples, and other iron oxides or intermetallic compounds were not detected. At a mass concentration of 10% Fe, an earlier appearance of the α-Al2O3phase was observed and the exothermic heat release peak was shifted to lower temperatures (893°C) compared to the unmodified ASD-4 powder (1045°C).

AB - The effect of the modification of ASD-4 micron-sized aluminum powder by iron oxide on its oxidation in air was investigated. The metal particle surface was modified by coating with a gel based on Fe(OH)(HCOO)2 and ethylene glycol monomethyl ether, CH3OC2H4OH, with subsequent heat treatment in air. It was found that the presence of iron oxide generally had a positive effect on the oxidation dynamics of ASD-4 powder under heating in air. The oxidation rate of modified powders increases with increasing content of iron oxide in them. X-ray diffraction analysis using a synchrotron radiation source under heating to 1000°C showed the presence of only the basic phases of γ-Al2O3and α-Al2O3, γ-Fe2O3, and α-Fe2O3in the samples, and other iron oxides or intermetallic compounds were not detected. At a mass concentration of 10% Fe, an earlier appearance of the α-Al2O3phase was observed and the exothermic heat release peak was shifted to lower temperatures (893°C) compared to the unmodified ASD-4 powder (1045°C).

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KW - basic iron formate

KW - iron oxides

KW - modification

KW - oxidation

KW - phase analysis

KW - powder

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