Low coefficient of expansion alloys having a thermal barrier

Details Low coefficient of expansion alloys having a thermal barrier Low coefficient of expansion alloys having a thermal barrier

1988-04-19

1990-02-13

Rutledge, L. DeWayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428678, 428685, B32B 1504

Patent

active

049006401

ABSTRACT:
A low coefficient of expansion alloy is coated with a thermal barrier coating having a low coefficient of expansion compatible with the alloy. The alloy, preferably a 900 series iron-base alloy, includes an oxidation resistant intermediate bond coating and a zirconia containing thermal barrier. An article of manufacture made from this material could be utilized in heat engines where close tolerances are mandated.

REFERENCES:
patent: 4055705 (1977-10-01), Stecura et al.
patent: 4248940 (1981-02-01), Goward et al.
patent: 4255495 (1981-03-01), Levine et al.
patent: 4335190 (1982-08-01), Bill et al.
patent: 4485151 (1984-11-01), Stecura
patent: 4535033 (1985-08-01), Stecura
patent: 4576874 (1986-03-01), Spengler et al.
McKee, D W. et al., "Resistance of Thermal Barrier Ceramic Coatings to Hot Salt Corrosion", Thin Solid Films, 73 (1980), pp. 439-445.
"Thermal Barrier Coatings for Engine Applications" by J. A. Colwell, Battelle Columbus Division, MCIC-86-C2, Aug. 1986.
"Effect of Thermal Cycling On ZrO.sub.2 -Y.sub.2 O.sub.3 Thermal Barrier Coatings" by G. McDonald and R. C. Hendricks, NASA Technical Memorandum 81480, Apr. 21-25, 1980 Conference.
"Failure Mechanisms of Thermal Barrier Coatings Exposed to Elevated Temperatures" by R. A. Miller and C. E. Lowell, Thin Solid Films, 95 (1982), pp. 265-273, Apr. 5-8, 1982.
"Optimization of the NiCrAl-Y/ZrO.sub.2 -Y.sub.2 O.sub.3 Thermal Barrier System" by S. Stecura, NASA TM-86905, May 5-9, 1985.
"Ceramic-Coated Metals can Survive Contact with Hot Working Fluid" by S. R. Levine and R. A. Miller, Research and Development, Mar. 1984, 122-125 (pp. 279-282).
"Practical Aspects of Ultra-Thick Thermal Barrier Coatings" by D. H. Harris, Journal of Materials for Energy Systems, vol. 8, No. 3, Dec. 1986, pp. 267-272.

Affiliated with

Also associated with

Rating

Low coefficient of expansion alloys having a thermal barrier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low coefficient of expansion alloys having a thermal barrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low coefficient of expansion alloys having a thermal barrier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1167447