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In situ observation of structural alteration process of filmy quenched carbonaceous composite

Published online by Cambridge University Press:  01 February 2008

Akihito Kumamoto ,
Yuki Kimura ,
Chihiro Kaito  and
Setsuko Wada
Akihito Kumamoto
Affiliation:
Laboratory for Nano-structure Science, Ritsumeikan University, Japan email: [email protected]
Yuki Kimura
Affiliation:
Laboratory for Nano-structure Science, Ritsumeikan University, Japan email: [email protected]
Chihiro Kaito
Affiliation:
Laboratory for Nano-structure Science, Ritsumeikan University, Japan email: [email protected]
Setsuko Wada
Affiliation:
Department of Applied Physics & Chemistry, Univ. of Electro-Communications, Japan
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Abstract

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The thermal alteration process of filmy quenched carbonaceous composite (filmy QCC) has been studied in situ by high-resolution transmission electron microscopy (HRTEM). HRTEM images of the as-prepared filmy QCC showed the typical amorphous carbon film structure. By heating above 300 °C, the structural alteration takes place. Curled graphene structure started to appear at 300 °C. Distorted onion-like structure similar to dark QCC appeared above 500 to 700 °C. The distorted onion-like structure that appears at 700 °C after heating for 30 minutes also appeared by heating at 450 °C for 2 hours.

Keywords

Methods: laboratorydustplasmas
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S251: Organic Matter in Space , February 2008 , pp. 433 - 434
Copyright
Copyright © International Astronomical Union 2008

References

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