Patents Assigned to Swiss Aluminum Limited
  • Foaming of metal by the catalyzed and controlled decomposition of zirconium hydride and titanium hydride
    Patent number: 3981720
    Abstract: A process of foaming metal and particularly aluminum and its alloys by catalyzing and controlling the solid state decomposition of a material which releases a gas at elevated temperatures comprising mixing a discrete particulate material containing a major proportion of aluminum with zirconium hydride or titanium hydride, heating the resultant compact at a temperature of 850.degree. to 900.degree.F for at least 5 minutes and then adding said compact to a molten metal melt.
    Type: Grant
    Filed: February 7, 1972
    Date of Patent: September 21, 1976
    Assignee: Swiss Aluminum Limited
    Inventor: Sidney E. Speed