Claims
- 1. A high-strength, high-modulus, bulk carbon article comprising a plurality of carbon fibers in a carbon matrix, said matrix being formed from polyacrylonitrile precursor fibers, said article having a modulus of elasticity of at least 40.times.10.sup.6 psi, a tensile strength of at least 20.times.10.sup.3 psi, having an internal molecular orientation similar to that of preoxidized polyacrylonitrile fiber, and having an interlayer C-spacing substantially not greater than 3.383.ANG..
- 2. A bulk carbon article as defined in claim 1 wherein said carbon is substantially graphitic.
- 3. A bulk carbon article as defined in claim 1 wherein said carbon fibers are formed from said polyacylonitrile precursor fibers.
Parent Case Info
This application is a divisional application of our copending application Ser. No. 899,022, filed Aug. 22, 1986, for High Carbon Composite which is a continuation-in-part of application Ser. No. 714,925 now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4178413 |
De Munda |
Dec 1979 |
|
4350672 |
Layden, Jr. et al. |
Sep 1982 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
899022 |
Aug 1986 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
714925 |
Mar 1985 |
|