US4336065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacture of a composite material by powder metallurgy
Assignee: Individual
•
Filing: 1980-02-26
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Granted: 1982-06-22
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Expires: 2000-02-26
Abstract
Abstract A method for manufacturing a composite material by powder metallurgy wherein a starting material comprised of at least one body-centered cubic metal powder component, and contaminated by oxygen in its bulk or on its surface is mixed with a less noble supplemental component having a greater binding enthalpy for oxygen in powder form or as an alloy whereby the oxygen contaminant becomes bound to the supplemental component by internal solid-state reduction. The composite mixture is then deformed in at least one dimension to form ribbons or fibers thereof.
Inventors
- 👤 Hans Bergmann
- 👤 Rudiger Bormann
- 👤 Herbert C. Freyhardt
- 👤 Barry L. Mordike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:27
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/045; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/807; Y10S505/815; Y10S505/823
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
A method for manufacturing a composite material by powder metallurgy, comprising the steps of: (a) forming a mixture of: (1) a starting material comprised of at least one body-centered cubic metal powder component, said starting material being contaminated within or on its surface with oxygen or an oxygen compound; and (2) at least one additive component which is an unoxidized metal having in powder form or as an alloy a greater binding enthalpy for oxygen than said starting material; and (b) processing said mixture to form a composite wherein the presence of said additive component results in the binding therewith by internal solid-state reduction of the oxygen contaminating said starting material; and (c) deforming said composite in at least one dimension.
Claim 2
Independent Claim
121 words
A method for manufacturing a composite material by powder metallurgy, comprising the steps of: (a) forming a mixture of: (1) a starting material comprised of at least one body-centered cubic metal powder component, said starting material being contaminated within or on its surface with oxygen or an oxygen compound; and (2) at least one additive component which is an unoxidized metal having in powder form or as an alloy a greater binding enthalpy for oxygen than said starting material; and (b) processing said mixture to form a composite wherein the presence of said additive component results in the binding therewith by internal solid-state reduction of the oxygen contaminating said starting material; and (c) deforming said composite in at least one dimension.
Claim 3
Dependent Claim
39 words
The method according to claim 1 wherein said starting material is comprised of at least one body-centered cubic metal powder contaminated within or on its surface with oxygen or an oxygen compound and at least one additional powdered component.
Claim 4
Dependent Claim
16 words
The method according to claim 2 wherein said starting material comprises body-centered cubic niobium and copper.
Claim 5
Dependent Claim
27 words
The method according to claim 3 wherein said additive component is present in an amount of from about 0.5 to 2.0% by weight of the starting material.
Claim 6
Dependent Claim
13 words
The method according to claim 4 wherein said additive component is aluminum powder.
Claim 7
Dependent Claim
16 words
The method according to claim 2 wherein said starting material comprises body-centered cubic vanadium and copper.
Claim 8
Dependent Claim
27 words
The method according to claim 6 wherein said additive component is present in an amount of from about 2.0 to 10% by weight of the starting material.
Claim 9
Dependent Claim
13 words
The method according to claim 7 wherein said additive component is copper-calcium powder.
Claim 10
Dependent Claim
33 words
The method according to claim 1 wherein said additive component is at least one component selected from the group consisting of lanthanum, a lanthanide, calcium, beryllium, magnesium, lithium, hafnium, titanium, zirconium and aluminum.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |