US5120612A
Expired / Lapsed
US
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Incorporation of ceramic particles into a copper base matrix to form a composite material
Assignee: Olin Corp
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Filing: 1990-09-04
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Granted: 1992-06-09
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Expires: 2010-09-04
Abstract
Abstract A method of casting a copper based composite which includes a second phase ceramic particles. A copper or copper based alloy containing a eutectic reactive element is spray cast with the ceramic particles being injected into the spray cast stream of material prior to its being deposited onto the moving substrate. The eutectic reactive element diffuses into the ceramic particles and provides a good bond between the copper based matrix and the second phase ceramic particles. The ceramic particles may be selected from the group consisting of oxides, borides, nitrides, carbides and mixtures thereof. The eutectic reactive materials may include zirconium, chromium, titanium, aluminum and magnesium.
Inventors
- 👤 Sankaranarayanan Ashok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:24
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1036; C22C1/1042; C23; C23C; C23C4/00; C23C4/12; C23C4/123; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
67 words
A method of casting a copper based composite containing a ceramic material comprising atomizing a molten stream of copper or copper based alloy containing a eutectic reactive element capable of diffusing into ceramic particles, introducing solid ceramic particles into said atomized stream, and depositing said stream onto a moving substrate to solidify said deposit to form a copper based alloy containing a second phase of ceramic particles.
Claim 2
Independent Claim
67 words
A method of casting a copper based composite containing a ceramic material comprising atomizing a molten stream of copper or copper based alloy containing a eutectic reactive element capable of diffusing into ceramic particles, introducing solid ceramic particles into said atomized stream, and depositing said stream onto a moving substrate to solidify said deposit to form a copper based alloy containing a second phase of ceramic particles.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein said eutectic reacting material is selected from the group consisting of zirconium, chromium, titanium, aluminum, magnesium and mixtures thereof.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein said eutectic reacting material is selected from the group consisting of zirconium, chromium, titanium and mixtures thereof.
Claim 5
Dependent Claim
23 words
The method of claim 2 wherein said ceramic material is selected from the group consisting of oxides, borides, nitrides, carbides and mixtures thereof.
Claim 6
Dependent Claim
30 words
The method of claim 2 wherein said eutectic material is present in said copper or copper based alloy in the amount of from about 0.01 to about 5.0 weight percent.
Claim 7
Dependent Claim
30 words
The method of claim 2 wherein said eutectic material is present in said copper or copper based alloy in the amount of from about 0.01 to about 1.0 weight percent.
Claim 8
Dependent Claim
25 words
The method of claim 4 wherein said ceramic material is selected from the group consisting of titanium oxide, titanium nitride, silicon carbide and aluminum oxide.
Claim 9
Dependent Claim
55 words
A spray cast copper based composite comprising a copper or copper based alloy containing a eutectic reactive element and ceramic particles, said ceramic particles having said reactive element diffused therein and forming a second phase with said copper or copper based alloy as a matrix and being bonded to said copper or copper based alloy.
Claim 10
Dependent Claim
55 words
A spray cast copper based composite comprising a copper or copper based alloy containing a eutectic reactive element and ceramic particles, said ceramic particles having said reactive element diffused therein and forming a second phase with said copper or copper based alloy as a matrix and being bonded to said copper or copper based alloy.
Claim 11
Dependent Claim
25 words
The composite of claim 8 wherein said eutectic reactive element is selected from the group consisting of zirconium, chromium, titanium, aluminum, magnesium and mixtures thereof.
Claim 12
Dependent Claim
23 words
The composite of claim 8 wherein the ceramic material is selected from the group consisting of oxides, borides, nitrides, carbides and mixtures thereof.
Claim 13
Dependent Claim
23 words
The composite of claim 9 wherein said eutectic reactive element is selected from the group consisting of zirconium, chromium, titanium and mixtures thereof.
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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) | 1995-06-09 | 1995-12-09 | 1996-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-09 | 1999-12-09 | 2000-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-09 | 2003-12-09 | 2004-06-09 | $7700.00 | Window Closed / Lapsed |