Patents Assigned to METCO Incorporated
  • Hollow sphere ceramic particles for abradable coatings
    Patent number: 4450184
    Abstract: A hollow sphere ceramic flame spray powder is disclosed. The desired constituents are first formed into agglomerated particles in a spray drier. Then the agglomerated particles are introduced into a plasma flame which is adjusted so that the particles collected are substantially hollow. The hollow sphere ceramic particles are suitable for flame spraying a porous and abradable coating. The hollow particles may be selected from the group consisting of zirconium oxide and magnesium zirconate.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: May 22, 1984
    Assignee: METCO Incorporated
    Inventors: Frank N. Longo, Nicholas F. Bader, III, Mitchell R. Dorfman