Porous Al2O3/Al Metal Ceramics Prepared by the Oxidation of Aluminum Powder under Hydrothermal Conditions Followed by Thermal Dehydration: III. The Reactivity of Aluminum, the Reaction Mechanism of Its Oxidation with Water Vapor, and the Microtexture of Cermets Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2003, Volume: 44, Number: 2, Pages: 297-308 Pages count : 12 DOI: 10.1023/A:1023373016664 | ||
| Tags | Aluminum; Water Vapor; Dehydration; Vapor Pressure; Oxidation Reaction | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 99-03-32853 |
| 2 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | YSF-00-199 |
Abstract:
The macrokinetics of aluminum oxidation under hydrothermal conditions at 150–250°C and water vapor pressures of ∼0.5–4.5 MPa was studied. The apparent kinetic characteristics of the process were determined. The diffusion of water through the layer of a hydrated product was found to be a rate-limiting step. It was found that diffusion coefficients for various aluminum samples differed by almost two orders of magnitude; the main reaction steps were revealed. Changes in the texture of aluminum oxide in cermets in the course of the hydrothermal oxidation reaction were analyzed. This texture was found to depend on the ratio between the specific rate of the oxidation reaction and the rate of aging of the oxidation products under hydrothermal conditions.
Cite:
Tikhov S.F.
, Potapova Y.V.
, Sadykov V.A.
, Fenelonov V.B.
, Tsybulya S.V.
, Salanov A.N.
, Ivanov V.P.
, Kolomiichuk V.N.
Porous Al2O3/Al Metal Ceramics Prepared by the Oxidation of Aluminum Powder under Hydrothermal Conditions Followed by Thermal Dehydration: III. The Reactivity of Aluminum, the Reaction Mechanism of Its Oxidation with Water Vapor, and the Microtexture of Cermets
Kinetics and Catalysis. 2003. V.44. N2. P.297-308. DOI: 10.1023/A:1023373016664 WOS Scopus РИНЦ ANCAN OpenAlex
Porous Al2O3/Al Metal Ceramics Prepared by the Oxidation of Aluminum Powder under Hydrothermal Conditions Followed by Thermal Dehydration: III. The Reactivity of Aluminum, the Reaction Mechanism of Its Oxidation with Water Vapor, and the Microtexture of Cermets
Kinetics and Catalysis. 2003. V.44. N2. P.297-308. DOI: 10.1023/A:1023373016664 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Тихов С.Ф.
, Потапова Ю.В.
, Садыков В.А.
, Фенелонов В.Б.
, Цыбуля С.В.
, Саланов А.Н.
, Иванов В.П.
, Коломийчук В.Н.
Пористая металлокерамика Аl2O3/Аl, полученная окислением порошкообразного алюминия в гидротермальных условиях с последующей термической дегидратацией. III. Реакционная способность алюминия, особенности механизма реакции его окисления водяным паром и микротекстура керметов
Кинетика и катализ. 2003. Т.44. №2. С.322-334. РИНЦ
Пористая металлокерамика Аl2O3/Аl, полученная окислением порошкообразного алюминия в гидротермальных условиях с последующей термической дегидратацией. III. Реакционная способность алюминия, особенности механизма реакции его окисления водяным паром и микротекстура керметов
Кинетика и катализ. 2003. Т.44. №2. С.322-334. РИНЦ
Dates:
| Submitted: | Aug 13, 2002 |
| Published print: | Mar 1, 2003 |
Identifiers:
| Web of science: | WOS:000182774300017 |
| Scopus: | 2-s2.0-0038170504 |
| Elibrary: | 13423723 |
| Chemical Abstracts: | 2003:290173 |
| Chemical Abstracts (print): | 139:104421 |
| OpenAlex: | W322334444 |