US3864154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic-metal systems by infiltration
Assignee: United States Department of the Army
•
Filing: 1972-11-09
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Granted: 1975-02-04
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Expires: 1992-11-09
Abstract
Abstract This invention covers ceramic-metal compositions fabricated by infiltrating a porous ceramic compact with a molten metal impregnant. A cold pressed compact of silicon boride, aluminum boride, boron, and (aluminum boride-boron) were each positioned between powdered aluminum in a vacuum furnace which enabled the molten aluminum to infiltrate into the porous ceramic by capillary action. In addition, a porous ceramic compact of aluminum boride was similarly infiltrated with silicon.
Inventors
- 👤 George E Gazza
- 👤 Michael W Lindley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:51
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/5805; C04B35/01; C04B35/10; C04B35/111; C04B35/117; C04B35/622; C04B35/64; C04B35/65; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/80; C04B41/81; C04B41/85; C04B41/88; C22; C22C; C22C1/00; C22C1/10; C22C1/1036; C22C29/00; C22C29/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
20 words
A CERAMIC-METAL COMPOSITION CONSISTING OF A METAL IMPREGNATED INTO POROUS CERAMIC COMPACT BY INFILTRATION, SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
20 words
A CERAMIC-METAL COMPOSITION CONSISTING OF A METAL IMPREGNATED INTO POROUS CERAMIC COMPACT BY INFILTRATION, SELECTED FROM THE GROUP CONSISTING OF:
Claim 3
Dependent Claim
13 words
A material in accordance with claim 1 wherein the ceramic-metal material is SiB6-Al.
Claim 4
Dependent Claim
13 words
A material in accordance with claim 1 wherein the ceramic-metal material is AlB12Si.
Claim 5
Dependent Claim
13 words
A material in accordance with claim 1 wherein the ceramic-metal material is B-Al.
Claim 6
Dependent Claim
13 words
A material in accordance with claim 1 wherein the ceramic-metal material is AlB12-B-Al.
Claim 7
Dependent Claim
14 words
A ceramic-metal composition in accordance with claim 1 wherein the ceramic-metal composition is AlB12-Al.
References Cited (Backward Citations)
US1913373A
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US2612443A
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US2581252A
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US2581253A
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US2672426A
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US3457051A
Cited
US3725015A
Cited
US3718441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |