Influence of Dispersivity of Micron-Sized Aluminum Powders on their Resistance to Water Vapor

Sergey V. Zmanovskiy; Valentina V. Smirnova; Andrey V. Korshunov; Alexander P. Ilyin

doi:10.4028/www.scientific.net/KEM.712.251

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 712Influence of Dispersivity of Micron-Sized Aluminum...

Influence of Dispersivity of Micron-Sized Aluminum Powders on their Resistance to Water Vapor

Abstract:

The influence of dispersivity of micron-sized industrial Al powders with interval of the particles diameter of 0.18-11.0 μm on their resistance to oxidation in the saturated water vapor atmosphere at its different partial pressures has been studied. It was experimentally shown the effect of increasing the stability of powders with a higher proportion of submicron particles to oxidation when exposed to water vapor, which consists in reducing the degree of oxidation with increasing dispersivity of Al powders under the same exposure conditions to water vapor. Enhancing the stability of submicron and nanoparticles of Alto oxidation with water vapor was explained by the formation on the particle surface a special charge state of the oxide film (double electric layer) which slows the diffusion of oxidant to the metal core of particles.

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Periodical:

Key Engineering Materials (Volume 712)

Pages:

251-255

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.712.251

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Online since:

September 2016

Authors:

Sergey V. Zmanovskiy, Valentina V. Smirnova*, Andrey V. Korshunov, Alexander P. Ilyin

Keywords:

Aluminium, Interaction with Water Vapor, Micron Powders, Number-Size Mean Diameter, Surface-Size Mean Diameter

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References

[1] F. A. Kroger, The Chemistry of imperfect Crystals, Int. Publ. (1964) 654.

Google Scholar

[2] P. Kofstad, M. Tomellini, D. Gozzi, High temperature oxidation of metals under time-dependent gas pressyre, Ox. of Met. 26 (1986) 305-314.

DOI: 10.1007/bf00659338

Google Scholar

[3] K. Hauffe, Oxidation of metals, Plenum Press, New York. (1965).

Google Scholar

[4] L. K. Lepine Questions oxidation of metals in water and aqueous solutions, Math. AS Latv. SSR, Chem. 1 (1981) 12–25.

Google Scholar

[5] F.H. Chung, Quantitative interpretation of X-ray diffraction patterns. I. Matrix flushing method of quantitative multicomponent analisys, J. Appl. Crystallography. 7 (1974) 519–525.

DOI: 10.1107/s0021889874010375

Google Scholar

[6] A. Ilyin, A. Gromov, V. An, F. Faubert, C. de Izarra, A. Espagnacq, L. Brunet, Characterization of Aluminum Powders: I. Parameters of Reactivity of Aluminum Powders, Prop., Explos., Pyrotech. 27 (2002) 361-364.

DOI: 10.1002/prep.200290006

Google Scholar