Phase Transitions of Boron Carbide : Pair Interaction Model of High Carbon Limit

@inproceedings{Yao2016PhaseTO,
  title={Phase Transitions of Boron Carbide : Pair Interaction Model of High Carbon Limit},
  author={S. Z. Yao and William P. Huhn},
  year={2016}
}
Boron Carbide exhibits a broad composition range, implying a degree of intrinsic substitutional disorder. While the observed phase has rhombohedral symmetry (space group R3̄m), the enthalpy minimizing structure has lower, monoclinic, symmetry (space group Cm). The crystallographic primitive cell consists of a 12-atom icosahedron placed at the vertex of a rhombohedral lattice, together with a 3-atom chain along the 3-fold axis. In the limit of high carbon content, approaching 20% carbon, the… CONTINUE READING