Patents Assigned to Electrofuel Manufacturing Company
  • Ceramic compositions for wear resistant applications
    Patent number: 5326731
    Abstract: A composition for hard, sintered, tough and wear resistant ceramic articles is described. The composition is comprised of alumina, titanium carbonitride and filaments of titanium diboride or titanium nitride. The ceramic articles made of this composition are isostatically hot pressed or sintered at high temperature in inert gas. The density of the ceramic articles is usually in excess of 99% theoretical density and the hardness is greater than 20 GPa. The process was applied to manufacture ceramic cutting inserts of the above composition.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: July 5, 1994
    Assignee: Electrofuel Manufacturing Company
    Inventors: Rakesh Bhola, Sankar Dasgupta, James K. Jacobs