Abstract
Sintering of nanocrystalline boron carbide synthesized by the B2O3-sucrose precursor method was carried out using spark plasma sintering and hot-pressing techniques. High-density boron carbide was obtained at 1700 °C by spark plasma sintering method. Spark plasma sintering of commercially available B4C was also carried out at 1700 °C to compare the densification with nanocrystalline B4C. Density of spark plasma sintered nanocrystalline and commercial B4C under the same sintering conditions was 95% and 90% of the theoretical density, respectively. Hot-pressing of nanocrystalline boron carbide was also carried out to compare the densification with spark plasma sintering.
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