Screening of silicon precursors for incorporation into boron carbide

Anthony Etzold, Richard Haber, William Rafaniello

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Boron carbide is known to suffer from a loss in compressive strength in high pressure events due to amorphization. DFT simulations indicate that the introduction of silicon into the boron carbide lattice could mitigate this amorphization. Using rapid carbothermal reduction (RCR), within a temperature range of 1800-2000°C, the production of boron carbide powders lacking free carbon is possible. Using this method, incorporating silicon into the boron carbide lattice without the immediate production of silicon carbide becomes feasible. This incorporation is done via the addition of silicon from multiple sources, ranging from fumed silica to borosilicate xerogels, into the boron carbide precursor. The prepared powders are analyzed through x-ray diffraction, carbon analyses, and boron titration in order to determine their phases and stoichiometries, while bonding is analyzed via Raman spectroscopy. This will show that the incorporation of silicon possible and in agreement with the computational modeling, the addition will work to improve the performance of the boron carbide.

Original languageEnglish (US)
Title of host publicationAdvances in Ceramic Armor XI - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites
EditorsJerry C. LaSalvia
PublisherAmerican Ceramic Society
Pages93-97
Number of pages5
Edition4
ISBN (Print)9781119040439
StatePublished - 2016
Event13th Armor Ceramics Symposium - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015 - Daytona Beach, United States
Duration: Jan 25 2015Jan 30 2015

Publication series

NameCeramic Engineering and Science Proceedings
Number4
Volume36
ISSN (Print)0196-6219

Other

Other13th Armor Ceramics Symposium - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015
Country/TerritoryUnited States
CityDaytona Beach
Period1/25/151/30/15

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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