Preceramic polymer blends as precursors for boron-carbide/silicon-carbide composite ceramics and ceramic fibers

Marta M. Guron, Xiaolan Wei, Daniel Welna, Nicholas Krogman, Myung Jong Kim, Harry R. Allcock, Larry G. Sneddon

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Simple blends of the poly(norbornenyldecaborane)(PND) boron-carbide preceramic polymer with either of the commercial poly(methylcarbosilane)(PMCS)or allylhydridopolycarbosilane (AHPCS) siliconcarbide preceramic polymers have been found to provide excellent processable precursors to boroncarbide/silicon- carbide ceramic composite materials. The blends exhibited good char yields with tunable ceramic compositions. Certain compositions of the PND/AHPCS derived ceramics also exhibited significant oxidation resistance. Nonwoven mats of PND/PMCS polymer composite fibers were readily obtained by the electrostatic spinning of polymer blend solutions. The pyrolytic ceramic conversion reactions of the PND/PMCS polymer fibers then produced mats of micro-and nanodiameter boron-carbide/silicon-carbide ceramic composite fibers.

Original languageEnglish (US)
Pages (from-to)1708-1715
Number of pages8
JournalChemistry of Materials
Volume21
Issue number8
DOIs
StatePublished - Apr 28 2009

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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