Method for applying abrasive layers to blade surfaces

Details Method for applying abrasive layers to blade surfaces Method for applying abrasive layers to blade surfaces

1990-07-16

1992-04-14

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

416224, 416229A, 295272, 295274, 298897, B63H 702, F01D 514

Patent

active

051042932

ABSTRACT:
This invention relates to abrasive layers for use in the gas turbine industry. The preferred embodiment of the invention comprises nickel coated, yttria doped silicon nitride particulates dispersed within a nickel base superalloy matrix which is substantially free of oxides. The layer is formed using low pressure plasma spray processes.

REFERENCES:
patent: 3607343 (1971-09-01), Longo
patent: 4101715 (1978-07-01), Rairden
patent: 4275090 (1981-06-01), McComas et al.
patent: 4291089 (1981-09-01), Adamovic
patent: 4370789 (1983-02-01), Schilke et al.
patent: 4386112 (1983-05-01), Eaton et al.
patent: 4449989 (1984-05-01), Sarin et al.
patent: 4469489 (1984-09-01), Sarin et al.
patent: 4550063 (1985-10-01), Galasso et al.
patent: 4576828 (1986-03-01), Walker, Jr.
patent: 4610698 (1986-09-01), Eaton et al.
patent: 4629707 (1986-12-01), Wolfe
patent: 4670024 (1987-06-01), Bhat et al.
patent: 4741973 (1988-05-01), Condit et al.
patent: 4744725 (1988-05-01), Matarese et al.
patent: 4802828 (1989-02-01), Rutz et al.
patent: 4851188 (1989-07-01), Schaefer et al.
patent: 4884820 (1989-12-01), Jackson et al.
H. E. Eaton and R. C. Novak "Coating Strength of Plasma Sprayed Stainless Steel"-Surface & Coatings Technology, 27, (Sep. 1986) 197-202.
Alan Arias "Effect of Yttria Additives On Properties of Pressureless-Sintered Silicon Nitride" NASA Technical Paper May 1989.
Gerald Q. Weaver & John W. Lucek "Optimization of Hot-Pressed Silicon Nitride Yttria Materials"-Ceramic Bulletin, vol. 57, #12 (Oct. 1978).
R. K. Govila "Strength Characterization of Yttria/Alumina-Doped Sintered Silicon Nitride"-57-Ceramics, vol. 108, Jun. 1988 (108: 117447r).

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