Publicou 6 edições por ano
ISSN Imprimir: 2150-766X
ISSN On-line: 2150-7678
Indexed in
'ACTIVATED' ALUMINUM AS A STORED ENERGY SOURCE FOR PROPELLANTS
RESUMO
The process of electro-explosion of metal wires, which has been known for more than 200 years, has been adapted to the preparation of activated aluminum, called Alex. The process produces metallic particles of approximately 50−100 nanometers in size. X-ray diffraction studies both in Russia and the U.S.A. confirm the crystallites are aluminum, although one study shows a minor amount of an unknown phase, that is presumed to be oxide. The surface phase appears to be semiconductive in nature. The most unusual characteristic of this aluminum is the stored energy that is released upon reaching a threshold temperature. While this heat generation has been confirmed by other researchers, no one, including the authors has a proven theory for the source of this energy. Nevertheless, this material is suggested for use as a fuel in pyrotechnics, explosives and propellants.
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