Densification and characterization of rapid carbothermal synthesized boron carbide
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 13, 2017
- Source ID
- 10.1111/ijac.12654
Entities
People
- Kelvin Yu Xie
- Kevin Jude Hemker
- Luoning Ma
- Muhammet Fatih Toksoy
- Richard Alan Haber
- William Rafaniello
Organizations
- Defense Advanced Research Projects Agency
- Johns Hopkins University
- National Science Foundation
- Rutgers University
- United States Army Research Laboratory
- İzmir Institute of Technology