Self-sinterability of mesocarbon microbeads (MCMB) for preparation of high-density isotropic carbon View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2003-05

AUTHORS

Yan Gao, Huaihe Song, Xiaohong Chen

ABSTRACT

In this paper, self-sinterability of MCMB derived from a refined petroleum residue was studied in detail. Green pieces were prepared from the MCMB by hot pressing and further heat treatment in the range of 300°C to 1100°C under argon atmosphere. The properties of carbon blocks such as weight loss, volume shrinkage, conductivity during heat-treatment were measured after each step. Thermalgravimetric analysis (TGA) of green pieces with different β resin content as well as Scanning Electron Microscopy (SEM) morphology of fracture surfaces of carbon blocks were also determined. From the results above, it is indicated that below 1100°C the process of carbonization shows two distinct stages: plastic sintering below 550°C and solid carbonization at higher temperature than 550°C. Different reactions took place in the interior of the carbon blocks during the two different stages, of which the plastic sintering stage was more important to the properties of carbon blocks. Accordingly, the model of self-sinterability of MCMB during heat treatment was proposed. More... »

PAGES

2209-2213

References to SciGraph publications

  • 2002-07. Preparation of C/C composite using mesocarbon microbeads as matrix in JOURNAL OF MATERIALS SCIENCE LETTERS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1023/a:1023740517269

    DOI

    http://dx.doi.org/10.1023/a:1023740517269

    DIMENSIONS

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