US4415632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon carbide body having pores filled with steel or steel alloys
Assignee: Forschungszentrum Jülich
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Filing: 1983-03-07
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Granted: 1983-11-15
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Expires: 2003-03-07
Abstract
Abstract A molded porous silicon carbide body in the shape of an armor plate, made by coking a mixture of carbon and silicon powder coated with an organic binder to which some silicon carbide powder may be added, and then rapidly raising the temperature to a level at which silicon carbide is formed, is impregnated so that its pores are filled with steel or a steel alloy to produce a plate that has the hardness and stiffness of silicon carbide and the toughness of metal. The plate has superior resistance to hollow or shaped explosive charges. The lower density provided by the silicon carbide favors its use in armored vehicles.
Inventors
- 👤 Hartmut Luhleich
- 👤 Francisco J. Dias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:01
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; C04B41/45; C04B41/50; C04B41/51; C04B41/80; C04B41/81; C04B41/85; C04B41/88; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0421; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
Armor plate resistant to bending, shear and crushing forces and consisting of composite material consisting of a porous silicon carbide body in a molded armor plate shape, having through-penetrating pores filled with a metallic material selected from the group consisting of steel and steel alloys, whereby the composite material has hardness and stiffness due to the silicon carbide and toughness due to the metallic material in a combination sufficiently stress-resistant to provide resistance to explosive impact.
Claim 2
Dependent Claim
76 words
Armor plate resistant to bending, shear and crushing forces and consisting of composite material consisting of a porous silicon carbide body in a molded armor plate shape, having through-penetrating pores filled with a metallic material selected from the group consisting of steel and steel alloys, whereby the composite material has hardness and stiffness due to the silicon carbide and toughness due to the metallic material in a combination sufficiently stress-resistant to provide resistance to explosive impact.
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) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |