The effect of carbon source on the microstructure and the mechanical properties of reaction bonded boron carbide Academic Article uri icon

abstract

  • ABSTRACT The present communication is concerned with the effect of the carbon source on the rnicrostructure and mechanical properties of reaction bonded boron carbide composites. The composites were fabricated by molten Si-infiltration of partially sintered boron carbide preforms with 20, 30, or 40 vol.% porosity with and without free carbon addition. The infiltrated composites consist of four phases namely the original boron carbide particles, the ternary B12 (B, C, Si) 3 compound, formed in the course of the infiltration process,[3-SiC …

publication date

  • February 4, 2010