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United States Patent 5,424,054
Bethune, et. al.Jun. 13, 1995

Carbon fibers and method for their production

Inventors: Bethune; Donald S. (San Jose, CA); Beyers; Robert B. (San Jose, CA); Kiang; Ching-Hwa (San Jose, CA).
Assignee: International Business Machines Corporation (Armonk, NY).
Appl. No.: 065,821
Filed: May 21, 1993

Intl. Cl.:D01F 9/12;
U.S. Cl.:423/447.2; 423/447.3;
Field of Search:447.3;447.2;445 B

References Cited

U.S. Patent Documents
4,663,230May, 1987Tennent 428/367
5,102,647Apr., 1992Yamada et al. 423/447 .3

Other References

Primary Examiner: Lewis; Michael
Assistant Examiner: Hendrickson; Stuart L.

Abstract

The present invention relates to hollow carbon fibers having a cylindrical wall comprising a single layer of carbon atoms and a process for the production of these fibers.

3 Claims, 4 Drawing Figures


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