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Degradation analysis of SiC fiber at elevated temperature for dust filtering applications

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2017, 27(1), pp.28-33
  • DOI : 10.6111/JKCGCT.2017.27.1.028
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : November 25, 2016
  • Accepted : January 26, 2017
  • Published : February 28, 2017

Young Jun Joo 1 Cheong Ho Park 1 Khos-Erdene Khishigbayar 2 Cheol-Jin Kim 1

1경상대학교
2한국세라믹기술원

Accredited

ABSTRACT

SiC fiber can be used up to 1800 o C in both inert and air atmosphere without any problems such as melting and oxidation. SiC fibers can be applied to dust filtering processes as a bag filter at a high temperature above 700 o C, which is far beyond the temperature range of currently available industrial bag filter. However the studies for the degradation of SiC fibers were still lacked in the harsh environment of steel industries and thermoelectric power plants. In this study, SiC fibers were reacted with steel dust and thermal power plant dust at a high temperature of 500 o C or higher, and the degraded shape of the fiber surface was observed by SEM. Also the degree of oxygen diffusion on the surface and inside of SiC fiber was analyzed by EDS.

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