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Process for the thermal treatment of a material under magnetic field

Référence

02736-01

Statut des brevets

French patent application FR955380 filed on July 31, 2009 and entitled “Procédé et dispositif de traitement  d’un matériau sous l’effet d’un champ magnétique”

Inventeurs

Thomas GARCIN
Sophie RIVOIRARD
Eric BEAUGON
Pierre-Frédéric SIBEUD

 

Statut commercial

Research agreement, exclusive or non exclusive licenses

Laboratoire

Laboratory Consortium de Recherche pour l’Emergence de Technologies Avancées – CRETA- (UPS 2070) Grenobles , France, http://creta.grenoble.cnrs.fr/english/une1.htm”

Description

CONTEXT

Magnetic field processing have been investigated to influence the microstructure and thus the characteristics of a material, in alternative to thermomechanical treatments largely known in metalurgy. Indeed phase transformations in material, morphology and kinetics can be modified by applying a magnetic field during the fabrication process.

TECHNICAL DESCRIPTION

This invention deals with a thermomechanical  treatment process and equipment under an intense static magnetic field (up to several tesla). After heating the material one can apply a thermal shock and/or a thermomechanical and/or chemical treatment. During the aforementioned stages of the treatment, the material is subjected to the magnetic field of constant intensity and remains fixed in and relatively to the magnetic field. Contrary to the state of the art techniques the material does not move in the magnetic field to reach the quenching/cooling zone. Other treatments as solution treatments, surface treatments can also be applied .

BENEFITS

Adaptable whatever the magnetic field source (permanent magnets, an electromagnet, a supraconducting coil…) ; thermomechanical or chemical or thermal treatment may be conducted ; no displacement of material in the magnetic field (risk of destroying the magnet) ; magnetic field and temperature may vary during the process; material properties may be continuously measured during the treatment

INDUSTRIAL APPLICATIONS

Metallurgical treatment from the laboratory scale (material development) to industrial application on semifinished or finished product.

For further information, please contact us (Ref 02736-01)

 


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