Patents Assigned to Association pour la Recherche et Developpement des Methodes et Processus Industriels (ARMINES)
  • Method of manufacturing nitrided silicon parts
    Patent number: 4346147
    Abstract: A method of manufacturing nitrided silicon parts which retain their mechanical properties after hot oxidation, said method consisting of sintering silicon powder in an atmosphere which is rich in nitrogen. 1% to 10% by weight of aluminium powder is added to the silicon before sintering thereof and preliminary hot oxidation is effected in conditions which allow acicular mullite to form by the direct action of the aluminium and of a complement of oxygen molecules supplied by the outside medium on the silicon formed.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: August 24, 1982
    Assignee: Association pour la Recherche et Developpement des Methodes et Processus Industriels (ARMINES)
    Inventors: Pernette Barlier, Jean-Paul Torre