Process For The Preparation Of Metallic Wools With A Controlled Degree Of Surface Oxidation And Fibres Deriving From Them: Products Obtained, And Their Use As Supports To Obtain Metaalic Core Composite Materials For A Variety Of Applications
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United States of America Patent
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Issued Date -
Apr 24, 2008
app pub date -
Oct 13, 2005
filing date -
Oct 15, 2004
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Abandoned
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Abstract
A process for the production of surface-oxidized metallic wools or fibres involves dry scraping, with a set of grooved knives or equivalent tools, of a taut metallic wire which is made to slide between two rollers. The process includes regulation of the wire scraping temperature or subsequent heat treatment of the wire after cutting, to obtain controlled surface oxidation of the wool. The products obtained are useful as basic materials to prepare supports for catalysts and materials for various applications, such as sensors, catalysts or friction materials. Examples of coating of metallic wools and fibres with oxides, in particular ceramic oxides, for the creation of catalytic composite materials with a metallic core, are disclosed for this type of use.
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