US4552784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating a substrate with a rapidly solidified metal
Assignee: National Aeronautics and Space Administration
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Filing: 1984-03-19
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Granted: 1985-11-12
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Expires: 2004-03-19
Abstract
Abstract A method for coating a substrate with rapidly solidified metal which comprises spraying a mixture of rapidly solidified metal powder and small peening particles at high velocity against the substrate, said velocity being sufficient for the rapidly solidified metal powder and peening particles to impact the substrate and simultaneously bond the metal powder to the substrate. If the substrate is metallic, the method may provide the simultaneous mechanical working of the substrate surface.
Inventors
- 👤 Huai-Pu Chu
- 👤 Charles L. Staugaitis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:32
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/02; C23C24/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
69 words
A process for coating a substrate comprising; providing a mixture of rapidly solidified metal powder and peening particles; and spraying said mixture at said substrate by ejection at a velocity which is sufficient to cause said rapidly solidified metal powder and said peening particles to impact said substrate and simultaneously bond said rapidly solidified metal powder to the surface of said substrate in the form of a metal coating.
Claim 2
Dependent Claim
69 words
A process for coating a substrate comprising; providing a mixture of rapidly solidified metal powder and peening particles; and spraying said mixture at said substrate by ejection at a velocity which is sufficient to cause said rapidly solidified metal powder and said peening particles to impact said substrate and simultaneously bond said rapidly solidified metal powder to the surface of said substrate in the form of a metal coating.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein said rapidly solidified metal powder and peening particles are mixed prior to ejection.
Claim 4
Dependent Claim
21 words
The process of claim 1 wherein said rapidly solidified metal powder and peening particles are mixed at the point of ejection.
Claim 5
Dependent Claim
27 words
The process of claim 1 wherein said rapidly solidified metal powder is selected from the group consisting of aluminum, titanium, nickel, iron, copper, zinc and their alloys.
Claim 6
Dependent Claim
12 words
The process of claim 1 wherein said peening particles are glass beads.
Claim 7
Dependent Claim
17 words
The process of claim 1 wherein said rapidly solidified metal powder includes at least two different metals.
Claim 8
Dependent Claim
27 words
The process of claim 1 wherein the size of said rapidly solidified metal powder is no larger than about one half the size of said peening particles.
Claim 9
Dependent Claim
18 words
The process of claim 5 wherein said glass beads have a diameter from about 0.0098 to 0.0165 inches.
Claim 10
Dependent Claim
25 words
The process of claim 1 wherein said rapidly solidified metal powder is a tin alloy with a powder diameter from about 0.0003 to 0.0005 inch.
Claim 11
Dependent Claim
32 words
The process of claim 1 wherein said rapidly solidified metal powder is a tin alloy powder and said peening particles are glass beads which are mixed in about equal proportions by volume.
Claim 12
Dependent Claim
21 words
The process of claim 1 wherein said rapidly solidified metal powder is aluminum with a powder diameter of about 0.0015 inch.
Claim 13
Dependent Claim
29 words
The process of claim 1 wherein said rapidly solidified metal powder is aluminum and said peening particles are glass beads which are mixed in about equal proportions by volume.
Claim 14
Dependent Claim
37 words
The process of claim 1 wherein said rapidly solidified metal powder is aluminum and said peening particles are glass beads, wherein said aluminum is mixed with said beads to constitute about 30% of said mixture by volume.
Claim 15
Dependent Claim
68 words
The process of claim 1 wherein said rapidly solidified metal powder is a tin alloy with a powder diameter of from about 0.0003 to 0.0005 inch, said peening particles are glass beads with a diameter from about 0.0098 to 0.0165 inch, the powder and beads are mixed in about equal proportions by volume, and said spraying is accomplished by using compressed air with a pressure of 60 psig.
Claim 16
Dependent Claim
63 words
The process of claim 1 wherein said rapidly solidified metal powder is aluminum with a powder diameter of about 0.0015 inch, said peening particles are glass beads with a diameter from about 0.0098 to 0.0165 inch, the powder and beads being mixed in about equal proportions by volume, and said spraying is accomplished by using compressed air with a pressure of 60 psig.
Claim 17
Dependent Claim
67 words
The process of claim 1 wherein said rapidly solidified metal powder is aluminum with a powder diameter of about 0.0015 inch, said peening particles are glass beads with a diameter from about 0.0098 to 0.0165 inch, and aluminum being mixed with said beads to constitute about 30% of said mixture by volume, and said spraying is accomplished by using compressed air with a pressure of 60 psig.
Claim 18
Dependent Claim
20 words
The process of claim 1 wherein said spraying is accomplished by using compressed air with a pressure of 60 psig.
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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) | 1988-11-11 | 1989-05-13 | 1989-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-11 | 1993-05-13 | 1993-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-11 | 1997-05-13 | 1997-11-12 | $7700.00 | Window Closed / Lapsed |