Densification and characterization of rapid carbothermal synthesized boron carbide

Muhammet Fatih Toksoy, William Rafaniello, Kelvin Yu Xie, Luoning Ma, Kevin Jude Hemker, Richard Alan Haber

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9 Scopus citations


Submicrometer boron carbide powders were synthesized using rapid carbothermal reduction (RCR) method. Synthesized boron carbide powders had smaller particle size, lower free carbon, and high density of twins compared to commercial samples. Powders were sintered using spark plasma sintering at different temperatures and dwell times to compare sintering behavior. Synthesized boron carbide powders reached >99% TD at lower temperature and shorter dwell times compared to commercial powders. Improved microhardness observed in the densified RCR samples was likely caused by the combination of higher purity, better stoichiometry control, finer grain size, and a higher density of twin boundaries.

Original languageEnglish (US)
Pages (from-to)443-453
Number of pages11
JournalInternational Journal of Applied Ceramic Technology
Issue number3
StatePublished - May 1 2017

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry


  • boron carbide
  • spark plasma sintering
  • synthesis
  • twinning


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