Effect of Heating Rate of the Original ASD-4 Powder and the ASD-4 Powder Modified by the V2O5 Oxide on the Phase Composition of Oxidation Products
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Combustion, Explosion, and Shock Waves
ISSN: 0010-5082
, E-ISSN: 1573-8345
|
| Output data |
Year: 2019,
Volume: 55,
Number: 3,
Pages: 289-294
Pages count
: 6
DOI:
10.1134/S0010508219030067
|
| Tags |
aluminum; heating rate; modification; oxidation; phase analysis; powder; vanadium pentoxide |
| Authors |
Shevchenko V.G.
1
,
Eselevich D.A.
1
,
Vinokurov Z.S.
2,3
,
Konyukova A.V.
1
|
| Affiliations |
| 1 |
Institute of Solid State Chemistry, Urals Branch, Russian Academy of Sciences, Ekaterinburg, 620990, Russian Federation
|
| 2 |
Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
|
| 3 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
|
|
Funding (2)
|
1
|
Russian Foundation for Basic Research
|
16-32-00061
|
|
2
|
Federal Agency for Scientific Organizations
|
0397-2015-0026 (АААА-А16-116122810219-4)
|
X-ray diffraction with the help of synchrotron radiation is used to analyze a sequence of phase formation in the oxidation of original and modified Al powders in the case of heating in oxidizing gaseous media with rates of 10 and 100 K/min. It is established that an increase in the heating rate of the modified ASD-4 powder leads to an active growth of metastable phase (θ- and δ′-Al2O3) of aluminum oxide except for the γ-Al2O3 phase. Assumptions about the forms of existence of vanadium in the interaction products are given. It is shown that diffusion limitations in the core—shell system (Al-Al2O3) can be removed under the action of an oxidizing aluminum particle on physicochemical processes at interphase boundaries. © 2019, Pleiades Publishing, Ltd.