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Effects of milling brominated P-100 graphite fibers

Published online by Cambridge University Press:  31 January 2011

James R. Gaier ,
Michael E. Dillehay  and
Paul D. Hambourger
James R. Gaier
Affiliation:
National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135
Michael E. Dillehay
Affiliation:
Cleveland State University, Cleveland, Ohio 44115
Paul D. Hambourger
Affiliation:
Cleveland State University, Cleveland, Ohio 44115
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Abstract

Preliminary procedures have been developed for the ball milling of pristine and brominated P-100 graphite fibers. Because of the lubricative properties of graphite, large ball loads (50% by volume) are required. Use of 2-propanol as a milling medium enhances the efficiency of the process. The fibers, when allowed to settle from the milling medium, tend to be preferentially aligned with rather few fibers standing up. Milled, brominated P-100 fibers have resistivities that are indistinguishable from their pristine counterparts, apparently because of loss of bromine. This suggests that bromine would not be the intercalate of choice in applications where milled fibers of this type are required. It was found that brominated graphite fibers are stable in a wide variety of organic solvents.

Type
Articles
Information
Journal of Materials Research , Volume 2 , Issue 2 , April 1987 , pp. 195 - 200
Copyright
Copyright © Materials Research Society 1987

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References

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