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US4425318A
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Hydriding body-centered cubic phase alloys at room temperature
Assignee: Honeywell International Inc
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Filing: 1982-04-05
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Granted: 1984-01-10
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Expires: 2002-04-05
Abstract
Abstract Solid solution of niobium or tantalum and a second metal react rapidly with hydrogen under mild conditions, eliminating the need for a high temperature induction process. Suitable second metals include Al, Co, Cr, Fe, Mn, Mo, Ni, Cu, V, Si, Ge and Ga.
Inventors
- 👤 Arnulf J. Maeland
- 👤 George G. Libowitz
- 👤 George Rak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:38
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; C01B3/50; C01B3/508; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
135 words
A method of producing metal hydride which comprises reacting hydrogen gas at a temperature between about 0° C. and about 100° C. with a solid solution having a body-centered cubic phase structure comprising: (a) a first metal forming a body-centered cubic phase structure selected from the group consisting of niobium, tantalum and mixtures thereof; and (b) dissolved in said body-centered cubic phase structure at least about 0.5 atom percent of a second metal selected from the group consisting of aluminum, cobalt, chromium, iron, manganese, molybdenum, nickel, copper, vanadium, silicon, germanium, gallium and mixtures thereof; and wherein the reaction rate of said solid solution having said body-centered cubic phase structure with hydrogen at said temperature is at least about twice the reaction rate of said first metal with hydrogen at said temperature and identical hydrogen pressures.
Claim 2
Independent Claim
135 words
A method of producing metal hydride which comprises reacting hydrogen gas at a temperature between about 0° C. and about 100° C. with a solid solution having a body-centered cubic phase structure comprising: (a) a first metal forming a body-centered cubic phase structure selected from the group consisting of niobium, tantalum and mixtures thereof; and (b) dissolved in said body-centered cubic phase structure at least about 0.5 atom percent of a second metal selected from the group consisting of aluminum, cobalt, chromium, iron, manganese, molybdenum, nickel, copper, vanadium, silicon, germanium, gallium and mixtures thereof; and wherein the reaction rate of said solid solution having said body-centered cubic phase structure with hydrogen at said temperature is at least about twice the reaction rate of said first metal with hydrogen at said temperature and identical hydrogen pressures.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said first metal is niobium.
Claim 4
Dependent Claim
13 words
The method of claim 1 or 2 wherein the second metal is vanadium.
Claim 5
Dependent Claim
63 words
The method of claim 1 or 2 wherein the said solid solution further comprises between about 5 and about 70 atom percent of at least one additional metal selected from the group consisting of zirconium and titanium, the amounts of said additional metal and said second metal being sufficiently small to be jointly soluble in and still maintain said body-centered cubic phase structure.
Claim 6
Dependent Claim
25 words
The method of claim 1 or 2 wherein said second metal is selected from the group consisting of aluminum, silicon, germanium, gallium and mixtures thereof.
Claim 7
Dependent Claim
11 words
The method of claim 5 wherein said second metal is silicon.
Claim 8
Dependent Claim
22 words
The method of claim 5 wherein said second metal is present in an amount between about 1 and about 10 atom percent.
Claim 9
Dependent Claim
22 words
The method of claim 1 wherein said second metal is present in an amount between about 1 and about 10 atom percent.
Claim 10
Dependent Claim
17 words
The method of claim 1 wherein said temperature is between about 0° C. and about 50° C.
Claim 11
Dependent Claim
22 words
The method of claim 1 wherein said solid solution is in bulk form having a particle size greater than about 1000 micrometers.
Claim 12
Dependent Claim
19 words
The method of claim 1 wherein hydrogen gas is present in a mixture with at least one inert gas.
Claim 13
Dependent Claim
33 words
The method of claim 1 wherein hydrogen gas is present in a gas mixture comprising hydrogen, inert gases and minor amounts of carbon monoxide, which mixture is substantially free of hydride poisoning gases.
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) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |