EP0005632A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Plasma spray coating composition, method of coating articles and articles coated with the composition.
Assignee: Ford-Werke GmbH
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Filing: 1979-05-17
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Granted: —
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Expires: 1999-05-17
Abstract
Abstract A coating composition which may be plasma sprayed onto the surface of an article to protect the article from heat, wear, corrosion or radiation comprises a mixture of finely divided silicon carbide and finely divided silicon. This coating composition is applied to a substrate by plasma spraying. The resulting coating, consisting essentially of beta silicon carbide and silicon, is tightly adherent to the substrate. The substrate may be any material, either metallic or non-metallic, to which the coating adheres. Examples of possible substrates are machining tools, valve seats and rocket nozzles.
Inventors
- 👤 Leslie Laszlo Terner
- 👤 David Moskowitz
- 👤 Roy Leonard Van Alsten
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 17:37
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; B; B23; B23B; B23B27/00; B23B27/14; B23B27/148; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/5053; C04B41/5057; C04B41/5059; C23C4/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
17 words
A coating composition suitable for arc plasma spraying comprising finely-divided silicon in admixture with finely-divided silicon carbide.
Claim 2
Dependent Claim
17 words
A coating composition suitable for arc plasma spraying comprising finely-divided silicon in admixture with finely-divided silicon carbide.
Claim 3
Dependent Claim
26 words
A composition according to claim 1 wherein the finely-divided silicon carbide has a particle size of from 100 mesh (149 microns) to 325 mesh (44 microns).
Claim 4
Dependent Claim
28 words
A composition according to claim 1 or claim 2 wherein the finely-divided silicon has a particle size of from 180 mesh (85microns) to 325 mesh (4 4 microns).
Claim 5
Dependent Claim
25 words
A composition according to any one of claims 1 to 3 wherein the silicon carbide is in the form of microballoons of beta silicon carbide.
Claim 6
Dependent Claim
19 words
A composition according to claim 4 wherein the microballoons have a particle size of from 5 to 120 microns.
Claim 7
Dependent Claim
30 words
A composition according to any one of claims 1 to 5 wherein the silicon carbide forms from 70 to 90% by volume of the mixture of silicon and silicon carbide.
Claim 8
Dependent Claim
21 words
A composition according to claim 6 wherein the silicon carbide forms from 80 to 85% by volume of the said mixture.
Claim 9
Independent Claim
25 words
A method of coating an article which comprises applying a coating composition according to any one of. claims 1 to 7 thereto by plasma spraying.
Claim 10
Dependent Claim
11 words
A coated article produced by a method according to claim 8.
Claim 11
Dependent Claim
14 words
An article having carrying an adherent coating composed of beta silicon carbide and silicon.
Claim 12
Dependent Claim
14 words
An article having carrying an adherent coating composed of beta silicon carbide and silicon.
Claim 13
Dependent Claim
22 words
An article according to claim 9 or claim 10 wherein the coating contains from 15 to 70% by volume of silicon carbide.
Claim 14
Dependent Claim
24 words
An article according to any one of claims 9 to 11 wherein the coating contains from 30 to 60% by volume of silicon carbide.
References Cited (Backward Citations)
No citation records indexed.
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