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The influence of deposition mechanism on the microstructure of pyrolytic carbon deposited in a tumbling bed

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Abstract

The factors influencing the size of the microstructure of isotropic carbon are suggested. Scanning electron micrographs of pyrolytic carbons deposited in a low RPM (below 2.4 rpm) tumbling bed are examined. The growth of surface carbon on the deposited droplets, which causes the increase in the size of the microstructure, occurs in two ways: (1) an increase in the period of static state of the substrate and a decrease in the tumbling factor (e.g. by decreasing the rpm) after the gas-borne droplets are deposited on the substrate; (2) the gas-recirculation existing in a dynamic bed before the gas-borne droplets are deposited onto the substrate.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, P. O. Box 150, Cheongryang, Seoul, Korea

    J. H. Je & Jai Young Lee

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  1. J. H. Je
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  2. Jai Young Lee
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Je, J.H., Lee, J.Y. The influence of deposition mechanism on the microstructure of pyrolytic carbon deposited in a tumbling bed. J Mater Sci 20, 839–844 (1985). https://doi.org/10.1007/BF00585724

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  • DOI: https://doi.org/10.1007/BF00585724

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