Patent US4471017A successfully refreshed from Google Patents.
US4471017A
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US
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High-temperature and thermal-shock-resistant thermally insulating coatings on the basis of ceramic materials
Assignee: Battelle-Institut
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Filing: 1982-09-21
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Granted: 1984-09-11
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Expires: 2002-09-21
Abstract
Abstract A high-temperature and thermal-shock-resistant thermal insulating coating based upon flame- or plasma-sprayed ceramic materials. The coating consists of several layer sequences essentially of the same materials. Each layer sequence contains at least one ceramic and one cermet layer, and/or one ceramic and one metal layer, and/or one cermet and one metal layer.
Inventors
- 👤 Eva Poeschel
- 👤 Guido Weibel
- 👤 Wolfgang Schw/a/ mmlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:08
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0085; F02F7/0087; C; C23; C23C; C23C4/00; C23C4/02; F02B; F02B77/00; F02B77/11; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
50 words
A high-temperature and thermal-shock-resistant thermal insulating coating, formed of flame- or plasma-sprayed ceramic materials, consisting of several layer sequences essentially of the same materials, each layer sequence containing at least one ceramic and one cermet layer and/or one ceramic and one metal layer and/or one cermet and one metal layer.
Claim 2
Dependent Claim
50 words
A high-temperature and thermal-shock-resistant thermal insulating coating, formed of flame- or plasma-sprayed ceramic materials, consisting of several layer sequences essentially of the same materials, each layer sequence containing at least one ceramic and one cermet layer and/or one ceramic and one metal layer and/or one cermet and one metal layer.
Claim 3
Dependent Claim
29 words
Coating as claimed in claim 1 wherein the coating thickness is at least 200 μm and that the individual layers each have a thickness of 6 to 1000 μm.
Claim 4
Dependent Claim
14 words
Coating as claimed in claim 1 or 2 where the layers have different thicknesses.
Claim 5
Dependent Claim
28 words
Coating as claimed in claim 3 wherein the metal and cermet layers have the same thickness, and the thicknesses of the ceramic layers increase toward the surface layer.
Claim 6
Dependent Claim
28 words
Coating as claimed in claim 3 wherein the ceramic layers have the same thickness and the thicknesses of the metal and cermet layers decrease toward the surface layer.
Claim 7
Dependent Claim
32 words
Coating as claimed in claim 3 wherein the thicknesses of the ceramic layers increase toward the surface layer, and the thicknesses of the metal and cermet layers decrease toward the surface layer.
Claim 8
Dependent Claim
23 words
Coating as claimed in claim 3 wherein the concentration of the metallic component in the cermet layers gradually decreases toward the surface layer.
Claim 9
Dependent Claim
14 words
Coating as claimed in claim 3 wherein the layers are wear and corrosion resistant.
Claim 10
Dependent Claim
33 words
Coating as claimed in claim 3 wherein the cermet layers consist of a metal, and stabilized zirconium dioxide and/or zirconium silicate, and the ceramic layers consist of stabilized zirconium dioxide and/or zirconium silicate.
Claim 11
Dependent Claim
20 words
Coating as claimed in claim 3 wherein the surface layer subject to load consists of zirconium dioxide and/or zirconium silicate.
Claim 12
Dependent Claim
36 words
Coating as claimed in claim 3 wherein the coating is removably attached to the substrate and has an outer layer of a metallic material by means of which the coating is connected with a metallic component.
Claim 13
Dependent Claim
29 words
Coating as claimed in claim 1 wherein the its thickness is at least 200 μm and that the individual layers each have a thickness of 50 to 200 μm.
Claim 14
Dependent Claim
34 words
Coating as claimed in claim 1 wherein the cermet layers consist of nickel-aluminum or nickel-chromium-aluminum, and stabilized zirconium dioxide and/or zirconium silicate, and the ceramic layers consist of stabilized zirconium dioxide and/or zirconium silicate.
Claim 15
Dependent Claim
29 words
Coating as claimed in claim 1 wherein the surface layer subject to load consists of zirconium dioxide and/or zirconium silicate and has a higher thickness than the other layers.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |