Patent US4590936A successfully refreshed from Google Patents.
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Patent US5277933A successfully refreshed from Google Patents.
US5277933A
Expired / Lapsed
US
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Method for forming a self-supporting body using vapor-phase parent metals and solid oxidants
Assignee: Lanxide Technology Co LP
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Filing: 1991-12-23
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Granted: 1994-01-11
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Expires: 2011-12-23
Abstract
Abstract This invention relates generally to a novel directed metal oxidation process which is utilized to produce self-supporting bodies. In some of the more specific aspects of the invention, a parent metal (e.g., a parent metal vapor) is induced to react with at least one solid oxidant-containing material to result in the directed growth of a reaction product which is formed from a reaction between the parent metal and the solid oxidant-containing material. The inventive process can be utilized to form bodies having substantially homogeneous compositions, graded compositions, and macrocomposite bodies.
Inventors
- 👤 Terry D. Claar
- 👤 Vilupanur A. Ravi
- 👤 Philip J. Roach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:16
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/80; C04B41/81; C04B41/85; C04B41/87; C04B35/00; C04B35/622; C04B35/64; C04B35/65; C04B35/652; C04B41/45; C04B41/50; C04B41/5053; C04B41/5057; C23; C23C; C23C10/00; C23C10/06; C23C10/08; C23C10/16
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
102 words
A method for forming a self-supporting body comprising: providing at least one solid oxidant-containing material; providing at least one vapor-phase parent metal, heating said at least one vapor-phase parent metal and said at least one solid oxidant-containing material to substantially the same temperature; contacting at least a portion of said solid oxidant-containing material with said at least one vapor-phase parent metal; and permitting said at least one vapor-phase parent metal and said at least a portion of said solid oxidant-containing material to form at lest one reaction product on said at least a portion of said at least one solid oxidant-containing material.
Claim 2
Independent Claim
102 words
A method for forming a self-supporting body comprising: providing at least one solid oxidant-containing material; providing at least one vapor-phase parent metal, heating said at least one vapor-phase parent metal and said at least one solid oxidant-containing material to substantially the same temperature; contacting at least a portion of said solid oxidant-containing material with said at least one vapor-phase parent metal; and permitting said at least one vapor-phase parent metal and said at least a portion of said solid oxidant-containing material to form at lest one reaction product on said at least a portion of said at least one solid oxidant-containing material.
Claim 3
Dependent Claim
30 words
The method of claim 1, wherein said at least one vapor-phase parent metal comprises at least one metal selected from the group consisting of titanium, zirconium, hafnium, silicon and niobium.
Claim 4
Dependent Claim
21 words
The method of claim 1, wherein said at least one solid oxidant-containing material comprises a carbonaceous material or a molybdenum-containing material.
Claim 5
Dependent Claim
31 words
The method of claim 1, wherein said at least one reaction product is formed primarily as a coating on at least one surface of said at least one solid oxidant-containing material.
Claim 6
Dependent Claim
29 words
The method of claim 1, wherein said at least one reaction product is formed as a coating on substantially all surfaces of said at least one solid oxidant-containing material.
Claim 7
Dependent Claim
22 words
The method of claim 1, wherein said at least one solid oxidant-containing material comprises a coating on at least one substrate material.
Claim 8
Dependent Claim
21 words
The method of claim 6, wherein said coating is present on at least one surface of said at least one substrate.
Claim 9
Dependent Claim
20 words
The method of claim 6, wherein said coating is located on substantially all surfaces of said at least one substrate.
Claim 10
Dependent Claim
24 words
The method of claim 1, wherein said at least one solid oxidant-containing material is substantially completely converted to said at least one reaction product.
Claim 11
Dependent Claim
20 words
The method of claim 1, wherein said at least one solid oxidant-containing material comprises a material having a complex geometry.
Claim 12
Dependent Claim
17 words
The method of claim 1, wherein said at least one solid oxidant-containing material comprises a carbon-carbon substrate.
Claim 13
Dependent Claim
34 words
The method of claim 1, wherein said at least one reaction product comprises at least one material selected from the group consisting of titanium carbide, zirconium carbide, hafnium carbide, niobium carbide and molybdenum disilicide.
Claim 14
Dependent Claim
14 words
The method of claim 1, wherein at least two vapor-phase parent metals are utilized.
Claim 15
Independent Claim
181 words
A method for forming a self-supporting body comprising: providing a reaction chamber; placing at least one solid parent metal in at least a portion of said reaction chamber; placing at least a portion of at least one solid oxidant-containing material in said reaction chamber; heating said reaction chamber, said at least one parent metal, and said at least one solid oxidant containing material to a temperature so as to achieve an adequate vapor pressure of said parent metal within said reaction chamber, wherein said adequate vapor pressure of said parent metal comprises an amount of vapor parent metal so as to substantially completely surround said at least a portion of said at least one solid oxidant-containing material or substantially fill said reaction chamber; maintaining said reaction chamber, said at least one parent metal, and said at least one solid oxidant-containing material at substantially the same temperature; and permitting said at least one vapor-phase parent metal and said solid oxidant-containing material to form at least one reaction product on said at least a portion of said at least one solid oxidant-containing material.
Claim 16
Independent Claim
181 words
A method for forming a self-supporting body comprising: providing a reaction chamber; placing at least one solid parent metal in at least a portion of said reaction chamber; placing at least a portion of at least one solid oxidant-containing material in said reaction chamber; heating said reaction chamber, said at least one parent metal, and said at least one solid oxidant containing material to a temperature so as to achieve an adequate vapor pressure of said parent metal within said reaction chamber, wherein said adequate vapor pressure of said parent metal comprises an amount of vapor parent metal so as to substantially completely surround said at least a portion of said at least one solid oxidant-containing material or substantially fill said reaction chamber; maintaining said reaction chamber, said at least one parent metal, and said at least one solid oxidant-containing material at substantially the same temperature; and permitting said at least one vapor-phase parent metal and said solid oxidant-containing material to form at least one reaction product on said at least a portion of said at least one solid oxidant-containing material.
Claim 17
Dependent Claim
29 words
The method of claim 14, wherein said at least one parent metal comprises at least one metal selected from the group consisting of titanium, zirconium, hafnium, silicon and niobium.
Claim 18
Dependent Claim
21 words
The method of claim 14, wherein said at least one solid oxidant-containing material comprises a carbonaceous material or a molybdenum-containing material.
Claim 19
Dependent Claim
17 words
The method of claim 14, wherein said at least one solid oxidant-containing material comprises a carbon-carbon substrate.
Claim 20
Dependent Claim
34 words
The method of claim 14, wherein said at least one reaction product comprises at least one material selected from the group consisting of titanium carbide, zirconium carbide, hafnium carbide, niobium carbide and molybdenum disilicide.
Claim 21
Dependent Claim
14 words
The method of claim 14, wherein at least two vapor-phase parent metals are utilized.
Claim 22
Independent Claim
171 words
A method for forming a self-supporting body comprising: providing a reaction system comprising (1) a reaction chamber; (2) at least one solid oxidant-containing material, and (3) at least one vapor-phase parent metal source, wherein said at least one parent metal vapor-source and at least a portion of said at least one solid oxidant containing material are contained within said reaction chamber thereby forming a reaction system; heating said reaction system to a temperature to achieve a vapor pressure of said vapor-phase parent metal to create a parent metal cloud within said reaction system, wherein said parent metal cloud substantially completely surrounds said at least a portion of said at least one solid oxidant-containing material; maintaining said at least one vapor-phase parent metal source and said at least one solid oxidant-containing material at substantially the same temperature; and permitting said parent metal cloud and said at least one solid oxidant-containing material to form at least one reaction product on said at least a portion of said at least one solid oxidant-containing material.
Claim 23
Independent Claim
171 words
A method for forming a self-supporting body comprising: providing a reaction system comprising (1) a reaction chamber; (2) at least one solid oxidant-containing material, and (3) at least one vapor-phase parent metal source, wherein said at least one parent metal vapor-source and at least a portion of said at least one solid oxidant containing material are contained within said reaction chamber thereby forming a reaction system; heating said reaction system to a temperature to achieve a vapor pressure of said vapor-phase parent metal to create a parent metal cloud within said reaction system, wherein said parent metal cloud substantially completely surrounds said at least a portion of said at least one solid oxidant-containing material; maintaining said at least one vapor-phase parent metal source and said at least one solid oxidant-containing material at substantially the same temperature; and permitting said parent metal cloud and said at least one solid oxidant-containing material to form at least one reaction product on said at least a portion of said at least one solid oxidant-containing material.
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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) | 1997-01-10 | 1997-07-12 | 1998-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-10 | 2001-07-12 | 2002-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-10 | 2005-07-12 | 2006-01-11 | $7700.00 | Window Closed / Lapsed |