Claims
- 1. A process for treating carbon fiber surfaces which increases the surface area with a total weight loss of less than 2%, comprising the steps of depositing onto the carbon fiber surface a single coating capable of catalyzing carbon gasification and in an amount to cause either pitting or channeling upon heating in air, said coating selected from the oxides or metals of the group consisting of Pt, Ni, Ir, Re, V, Pb, W, Pd, Co, Fe, Mo, Cu, Cd, Cr, Mn, Ru, Ag, Au, and mixtures thereof; applying air to the carbon fiber surface while heating the surface to a temperature at which the coating promotes localized oxidation to cause pitting or channeling and heating to increase the surface area, removing substantially all of said coating remaining after heating and cooling the carbon fiber.
- 2. A process as defined in claim 1, said process further including the step of cleaning the fiber surface before deposition.
- 3. A process as defined in claim 1 further including repeating at least once the same steps to additionally increase the total surface area.
- 4. A process as defined in claim 1 wherein said metal is silver.
- 5. A process as defined in claim 1 wherein said heating is at a rate less than about 10.degree. C./second.
- 6. A process as defined in claim 5, wherein the coating is Ag and the temperature is 450.degree. C. to 550.degree. C.
Parent Case Info
This application is a continuation of application Ser. No. 07/407,594, filed Sep. 15, 1989, now abandoned.
STATEMENT OF GOVERNMENT INTEREST
The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment of any royalty thereon.
US Referenced Citations (11)
Foreign Referenced Citations (1)
Number |
Date |
Country |
55-3347 |
Jan 1980 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Baker, Chemistry & Industry Sep. 18, 1982 pp. 698-702. |
Continuations (1)
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Number |
Date |
Country |
Parent |
407594 |
Sep 1989 |
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