公开(公告)号：CA1068178A

公开(公告)日：1979-12-18

申请号：CA255381

申请日：1976-06-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： GOWARD GEORGE W ,  GREY DELTON A ,  KRUTENAT RICHARD C

IPC: C22C19/00 ,  B32B15/04 ,  C04B35/71 ,  C04B37/02 ,  C22C19/05 ,  C22C27/06 ,  C22C30/00 ,  C22C38/00 ,  C23C4/02 ,  C23C4/04 ,  C23C4/06 ,  C23C4/08 ,  C23C4/10 ,  C23C24/08 ,  C23C28/00 ,  C23C30/00 ,  C23D17/00 ,  F01D5/28 ,  F01D25/00 ,  F02C7/24

Abstract: THERMAL BARRIER COATING FOR NICKEL BASE SUPER ALLOYS Adherent, thermal shock-resistant protective coatings for nickel base super alloys are obtained by applying to the base metal a thin bond coat of an alloy of chromium, aluminum and yttrium with materials selected from the group consisting of iron, cobalt, nickel and nickel-cobalt and applying thereover a continuously graded mixture of this material with a zirconiabased ceramic, the concentration of zirconia-based ceramic increasing from the bond coat to the outer layer. The zirconia ceramic may be stabilized by the addition thereto of amounts of magnesium oxide or other materials.