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Characterization of Aluminum Powders I. Parameters of Reactivity of Aluminum Powders
Author(s) -
Ilyin Alexander,
Gromov Alexander,
An Vladimir,
Faubert François,
de Izarra Charles,
Espagnacq André,
Brunet Luc
Publication year - 2002
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.200290006
Subject(s) - reactivity (psychology) , aluminium , isothermal process , materials science , degree (music) , characterization (materials science) , metallurgy , grain size , chemical engineering , thermodynamics , nanotechnology , medicine , alternative medicine , physics , pathology , acoustics , engineering
For testing the determination of the reactivity of aluminum powders it is proposed to use the following parameters: temperature of the beginning of oxidation, maximal oxidation rate, degree of transformation (degree of oxidation) of aluminum, relative thermal effect. Parameters for an evaluation of the reactivity of powders were chosen following the analysis of results of a non‐isothermal oxidation of powders of different grain size under conditions of programmed heating (the oxidizer being air). According to the proposed method of testing, the sample of ultrafine powder UFAP‐4 produced by the electrical explosion of wires has the highest reactivity among the studied powders.