公开(公告)号：DE69407811D1

公开(公告)日：1998-02-12

申请号：DE69407811

申请日：1994-10-28

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SILEO GERARD A ,  APPLEBY JOHN W ,  NARSAVAGE STEPHEN T ,  ALENT FRANCIS X ,  DAVIS CHARLES G

IPC: F01D11/02 ,  C23C4/02 ,  C23C4/10 ,  C23C30/00 ,  F01D11/08 ,  F01D11/12 ,  F02C7/28

Abstract: A gas turbine abradable seal is prepared by plasma spraying an oxidation resistant metallic material and boron nitride. The resultant structure comprises a metallic matrix encompassing a lubricating amount of boron nitride, with porosity of less than about 15 percent and a fabricated surface roughness of less than about 600 microinches. The reduced surface roughness and substantially reduced permeability of this seal provide substantially enhanced engine efficiency, and improved durability.

公开(公告)号：DE69407811T2

公开(公告)日：1998-04-23

申请号：DE69407811

申请日：1994-10-28

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SILEO GERARD A ,  APPLEBY JOHN W ,  NARSAVAGE STEPHEN T ,  ALENT FRANCIS X ,  DAVIS CHARLES G

IPC: F01D11/02 ,  C23C4/02 ,  C23C4/10 ,  C23C30/00 ,  F01D11/08 ,  F01D11/12 ,  F02C7/28

Abstract: A gas turbine abradable seal is prepared by plasma spraying an oxidation resistant metallic material and boron nitride. The resultant structure comprises a metallic matrix encompassing a lubricating amount of boron nitride, with porosity of less than about 15 percent and a fabricated surface roughness of less than about 600 microinches. The reduced surface roughness and substantially reduced permeability of this seal provide substantially enhanced engine efficiency, and improved durability.

公开(公告)号：NO865100D0

公开(公告)日：1986-12-17

申请号：NO865100

申请日：1986-12-17

Applicant: UNITED TECHNOLOGIES CORP

Inventor： NARSAVAGE STEPHEN T ,  HECHT RALPH J

IPC: C23C20060101 ,  C23C