公开(公告)号：WO1995012004A1

公开(公告)日：1995-05-04

申请号：PCT/US1994012431

申请日：1994-10-28

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  SILEO, Gerard, A. ,  APPLEBY, John, W. ,  NARSAVAGE, Stephen, T. ,  ALENT, Francis, X. ,  DAVIS, Charles, G.

IPC: C23C04/02

CPC classification number: C23C4/02 ,  F01D11/122 ,  Y02T50/672 ,  Y10S277/94 ,  Y10S428/937 ,  Y10T428/12479 ,  Y10T428/12944

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.

Abstract translation: 通过等离子喷涂耐氧化金属材料和氮化硼制备燃气轮胎可磨损密封件。 所得结构包括包含润滑量的氮化硼的金属基体，孔隙率小于约15％，制造的表面粗糙度小于约600微英寸。 该密封件的减小的表面粗糙度和显着降低的渗透性提供了显着增强的发动机效率和改进的耐久性。