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Patent US4649083A successfully refreshed from Google Patents.
US4649083A
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Electrical component forming process
Assignee: Olin Corp
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Filing: 1984-09-19
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Granted: 1987-03-10
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Expires: 2004-09-19
Abstract
Abstract The process of forming a composite with an alloy having an alloy component of about 0.5 to 12% aluminum and a matrix selected from a material of the group consisting of copper, iron or nickel. The alloy is heated in an oxygen-rich atmosphere to form a material oxide-rich layer on a surface of the alloy. The alloy is then heated in a reducing atmosphere to reduce the material oxide-rich layer to form an aluminum oxide on the surface of the alloy and a material-rich layer on the aluminum oxide layer.
Inventors
- 👤 Julius C. Fister
- 👤 John F. Breedis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:43
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/01; H10W70/02; C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/05; H05K1/053; H05K1/0306; H05K2203/00; H05K2203/03; H05K2203/0315; H05K2203/0323; H05K3/00; H05K3/10; H05K3/105; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49144; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12736; Y10T428/1275
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
121 words
An article of manufacture performed by the process of: (a) providing an alloy comprising a first alloy component of about 0.5 to 12% aluminum and the balance being selected from a material from the group consisting of copper and iron; (b) heating said alloy at a temperature below about 350° C. in an oxygen-rich atmosphere to form a oxide layer of said material on a surface of said alloy; and (c) heating said alloy at a temperature between approximately 500° to 850° C. in a reducing atmosphere to reduce said oxygen layer of said material into a layer of said material and to simultaneously form an aluminum oxide layer between said layer of said material and the surface of said alloy.
Claim 2
Dependent Claim
121 words
An article of manufacture performed by the process of: (a) providing an alloy comprising a first alloy component of about 0.5 to 12% aluminum and the balance being selected from a material from the group consisting of copper and iron; (b) heating said alloy at a temperature below about 350° C. in an oxygen-rich atmosphere to form a oxide layer of said material on a surface of said alloy; and (c) heating said alloy at a temperature between approximately 500° to 850° C. in a reducing atmosphere to reduce said oxygen layer of said material into a layer of said material and to simultaneously form an aluminum oxide layer between said layer of said material and the surface of said alloy.
Claim 3
Dependent Claim
10 words
The article of claim 1 wherein said material is copper.
Claim 4
Dependent Claim
119 words
An article of manufacture formed by the steps of: (a) providing an alloy comprising a first alloy component of about 0.5 to 12% aluminum and the balance being selected from a material from the group consisting of copper and iron; (b) heating said alloy at a temperature below about 350° C. in an oxygen-rich atmosphere to form an oxide layer of said material on a surface of said alloy; and (c) heating said alloy at a temperature above about 500° C. in a reducing atmosphere to reduce said oxygen layer of said material into a layer of said material and to simultaneously form an aluminum oxide layer between said layer of said material and the surface of said alloy.
Claim 5
Dependent Claim
119 words
An article of manufacture formed by the steps of: (a) providing an alloy comprising a first alloy component of about 0.5 to 12% aluminum and the balance being selected from a material from the group consisting of copper and iron; (b) heating said alloy at a temperature below about 350° C. in an oxygen-rich atmosphere to form an oxide layer of said material on a surface of said alloy; and (c) heating said alloy at a temperature above about 500° C. in a reducing atmosphere to reduce said oxygen layer of said material into a layer of said material and to simultaneously form an aluminum oxide layer between said layer of said material and the surface of said alloy.
Claim 6
Dependent Claim
50 words
A composite comprising: a first alloy component of about 0.5 to 12% aluminum and the balance selected from a material of the group consisting of copper and iron; a second component comprising a layer of said material; and an aluminum oxide layer between said first component and said second component.
Claim 7
Dependent Claim
50 words
A composite comprising: a first alloy component of about 0.5 to 12% aluminum and the balance selected from a material of the group consisting of copper and iron; a second component comprising a layer of said material; and an aluminum oxide layer between said first component and said second component.
Claim 8
Dependent Claim
22 words
The composite of claim 4 wherein said first alloy component further includes a second alloy component comprising about 0.001 to 6% silicon.
Claim 9
Dependent Claim
10 words
The composite of claim 5 wherein said material is copper.
Claim 10
Dependent Claim
25 words
The composite of claim 6 wherein said first alloy component comprises 2.5 to 3.1% aluminum and said second alloy component comprises 1.5 to 2.1% silicon.
Claim 11
Dependent Claim
10 words
The composite of claim 4 wherein said material is iron.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-03-09 | 1990-09-08 | 1991-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-09 | 1994-09-08 | 1995-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-09 | 1998-09-08 | 1999-03-10 | $7700.00 | Window Closed / Lapsed |