Patents Examined by Ann Marie Bosco
  • Silicon carbide-alpha prime sialon beta prime sialon
    Patent number: 4826791
    Abstract: A ceramic composite is provided possessing a combination of high fracture toughness, high hardness and high wear resistance. The composite contains SiC particles dispersed in a ceramic matrix of mainly sialon. The sialon is composed of about 10 to 67 weight percent alpha prime sialon, with the remainder, being beta prime sialon.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: May 2, 1989
    Assignee: Kennametal Inc.
    Inventors: Pankaj K. Mehrotra, Klaus-Markus Peters, Joyce L. Swiokla