Method of producing a superalloy article

Details Method of producing a superalloy article Method of producing a superalloy article

1995-12-15

1997-04-29

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Chemical vapor deposition

427237, 427238, 427239, 427250, 4272553, 427295, 427405, B05D 724

Patent

active

056247214

ABSTRACT:
A thermal barrier coating for superalloy turbine engine vanes and blades that are exposed to high temperature gas is disclosed. The coating includes a ceramic layer applied to an aluminide or MCrAlY bond coat by electron beam physical vapor deposition. The ceramic layer has a first portion having unstabilized porosity, a second portion, overlying the first portion, with stabilized porosity, and an outer portion wherein the pores are coated with a noble metal. The stabilized porosity portion along with the noble metal coating reduce the thermal conductivity of the ceramic layer. Stabilizing the porosity renders it more resistant to sintering densification at high temperatures.

REFERENCES:
patent: 2927043 (1960-03-01), Stetson
patent: 3415672 (1968-12-01), Levinstein et al.
patent: 3489537 (1970-01-01), Cook
patent: 3849865 (1974-11-01), Gedwill et al.
patent: 3869779 (1975-03-01), Gedwill et al.
patent: 3940569 (1976-02-01), Schonbrun et al.
patent: 3955935 (1976-05-01), Shockley et al.
patent: 3978251 (1976-08-01), Stetson et al.
patent: 3979534 (1976-09-01), Rairden, III
patent: 3996021 (1976-12-01), Chang et al.
patent: 4005989 (1977-02-01), Preston
patent: 4080486 (1978-03-01), Walker et al.
patent: 4269903 (1981-05-01), Clingman et al.
patent: 4321310 (1982-03-01), Ulion et al.
patent: 4321311 (1982-03-01), Strangman
patent: 4335190 (1982-06-01), Bill et al.
patent: 4374183 (1983-02-01), Deadmore et al.
patent: 4399199 (1983-08-01), McGill et al.
patent: 4401697 (1983-08-01), Strangman
patent: 4405659 (1983-09-01), Strangman
patent: 4405660 (1983-09-01), Ulion et al.
patent: 4414249 (1983-11-01), Ulion et al.
patent: 4447503 (1984-05-01), Dardi et al.
patent: 4576874 (1986-03-01), Spengler
patent: 4639399 (1987-01-01), Aprigliano
patent: 4676994 (1987-06-01), Demaray
patent: 4880614 (1989-11-01), Strangman et al.
patent: 4916022 (1990-04-01), Solfest et al.
patent: 5015502 (1991-05-01), Strangman et al.
patent: 5238752 (1993-08-01), Duderstadt et al.
patent: 5350599 (1994-09-01), Rigney et al.
"Deposition of Tungsten-Alumina Composite Films by Oxide Evaporation" Freller, et al., vol. 63, No. 2, Thin Solid Films, pp. 377-381, Nov. 1979.
"Thermal Barrier Coating Life Prediction Model Development", S.M. Meier, et al., NASA Contractor Report No. 18911, Jul. 1991, pp. 20 & 180.
"Oxidation of Low Sulfur Single Crystal Nickel-Base Superalloys", McVay et al., Superalloys 1992, pp. 807-816 (No month available).
"Allison Engine Testing CMSC-4 Single Crystal Turbine Blade and Vanes", Burkholder, et al., Apr. 25-27, 1995.

Affiliated with

Also associated with

Rating

Method of producing a superalloy article does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing a superalloy article, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a superalloy article will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-704307