公开(公告)号：JP2000192256A

公开(公告)日：2000-07-11

申请号：JP32930699

申请日：1999-11-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BURNS STEVEN M ,  MEEHAN ROBERT J

IPC: F02C7/00 ,  C23C14/02 ,  C23C14/08 ,  C23C28/00

Abstract: PROBLEM TO BE SOLVED: To provide a coating method of a heat shield film having durability. SOLUTION: For coating a heat shield film 4, at first, a metallic bonding film 6 composed of MCrAlY with Fe, Ni, Co or a mixture of Ni and Co as M is laminated on a substrate of a superalloy. Unrequired oxides and contaminants in the metallic bonding film composed of MCrAlY are removed by an ionized gas flow cleaning method such as reverse plasma arc cleaning. After the formation of an aluminum oxide thin film 8 having adhesive properties on the metallic bonding film composed of MCrAlY, a ceramic layer 10 is formed on the aluminum oxide thin film by a physical vapor deposition method, and its structure is formed into the columnar one.

公开(公告)号：CA2290236A1

公开(公告)日：2000-06-15

申请号：CA2290236

申请日：1999-11-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MEEHAN ROBERT J ,  BURNS STEVEN M

IPC: F02C7/00 ,  C23C14/02 ,  C23C14/08 ,  C23C28/00 ,  C23C4/04 ,  C23C14/06 ,  C23C4/18 ,  C23C14/22

Abstract: A thermal barrier coating may be applied by depositing a MCrAlY bond coat onto a superalloy substrate, wherein M stands for Ni, Co, Fe, or a mixture of Ni and Co. Undesired oxides and contaminants are removed from the MCrAlY bond coat with an ionized gas stream cleaning process, such as a reverse transfer arc process. An adherent aluminum oxide scale is formed on the MCrAlY bond coat and a ceramic layer is deposited on the aluminum oxide scale by physical vapor deposition to form a columnar structure.