US3778261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacturing composite articles
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1971-05-03
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Granted: 1973-12-11
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Expires: 1991-05-03
Abstract
Abstract A method of manufacturing a composite article comprises forming a metal matrix which includes a suitable carbide forming constituent contacting the matrix with a carbonaceous material to be incorporated in the matrix, and heating the matrix to a predetermined temperature below the melting point of the matrix for a sufficient length of time to induce the carbide forming constituent to diffuse through the matrix to the interface between the carbonaceous material and the matrix and react with the carbonaceous material to form a bonding carbide layer between the matrix and the carbonaceous material.
Inventors
- 👤 M Nicholas
- 👤 I Macpahil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:33
CPC Classifications
C; C22; C22C; C22C47/00; C22C1/00; C22C1/10; C22C1/1036
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
14 words
A method according to claim 1 wherein said solid carbonaceous material is tungsten carbide.
Claim 2
Dependent Claim
14 words
A method according to claim 1 wherein said solid carbonaceous material is titanium carbide.
Claim 3
Dependent Claim
14 words
A method according to claim 1 wherein said metal body is a copper-based alloy.
Claim 4
Dependent Claim
14 words
A method according to claim 1 wherein said metal body is an aluminum-based alloy.
Claim 5
Dependent Claim
14 words
A method according to claim 1 wherein said metal body is a tin-based alloy.
Claim 6
Dependent Claim
22 words
A method according to claim 1 wherein the metal carbide forming constituent is implanted into the metal body by an ion-implantation process.
Claim 7
Dependent Claim
22 words
A meThod according to claim 1 wherein the metal carbide forming constituent is implanted into the metal body by a sputtering process.
References Cited (Backward Citations)
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US2068848A
Cited
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Cited
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Cited
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Cited
US3377696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |