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Process Dependence of Orientation of Ribbon-Like Aromatic Molecules in Glassy Carbon

Published online by Cambridge University Press:  22 February 2011

H. Maleki ,
D. Ila ,
L. R. Holland ,
R. L. Zimmerman  and
G. M. Jenkins
H. Maleki
Affiliation:
Center for Irradiation of Materials, Alabama A&M University, P.O. Box 1447, Normal, AL. 35762-1447, U.S.A.
D. Ila
Affiliation:
Center for Irradiation of Materials, Alabama A&M University, P.O. Box 1447, Normal, AL. 35762-1447, U.S.A.
L. R. Holland
Affiliation:
Center for Irradiation of Materials, Alabama A&M University, P.O. Box 1447, Normal, AL. 35762-1447, U.S.A.
R. L. Zimmerman
Affiliation:
Center for Irradiation of Materials, Alabama A&M University, P.O. Box 1447, Normal, AL. 35762-1447, U.S.A.
G. M. Jenkins
Affiliation:
Center for Irradiation of Materials, Alabama A&M University, P.O. Box 1447, Normal, AL. 35762-1447, U.S.A.
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Abstract

Flat glassy polymeric carbon samples were prepared from phenolic resin by three techniques: spray coating, spin coating and molding. Cured at 110°C-180°C and pyrolyzed in argon at 600°C or at 1000°C, samples then were studied by RBS for trace impurities, by ESCA for surface oxidation and contamination and by Raman microprobe of the top surface and perpendicular to that for preferred orientation of aromatic ribbons. An increase of 13% to 24% in the relative area under the corresponding Raman peaks indicates increased orientation of the ribbon-like aromatic molecules in the sprayed and spin coated samples as compared with the molded sample.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 349: Symposium T – Novel Forms of Carbon II , 1994 , 15
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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