Fabrication of electrospun SiC fibers web/phenol resin composites for the application to high thermal conducting substrate

Tae Eon Kim, Jin Chul Bae, Kwang Yeon Cho, Yong Gun Shul, Chang Yeoul Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Polycabosilane (PCS) could be spun to form fiber web by electrospinning PCS solution in 30% dimethylformide (DMF)/toluene solvent at 25 kV. The electrospun web is stabilized at 200 °C for 1 hour to connect fibers by softening PCS webs and pyrolysed to synthesize silicon carbide (SiC) webs at 1800 °C. The pyrolysis at 1800 °C increased the SiC crystal size to 45 nm from 3 nm at 1300 °C. However, the pyrolysis at 1800 °C forms pores on the surface of SiC fibers due to oxygen evaporation generated during thermals curing. SiC/phenol composite webs could be fabricated by infiltration of phenol resin and hot pressing. The thermal conductivity measurement indicates that higher SiC fibers filler contents increase the thermal conductivity up to 1.9 W/mK for 40% fraction of filler contents from 0.5 W/mK for 20% fraction of filler.

Original languageEnglish
Pages (from-to)3307-3312
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume13
Issue number5
DOIs
Publication statusPublished - 2013 May

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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