Tungsten Carbide (WC, $B_{h}$) Structure: AB_hP2_187_a_d-001
| Prototype | CW |
| AFLOW prototype label | AB_hP2_187_a_d-001 |
| Strukturbericht designation | $B_{h}$ |
| ICSD | 15406 |
| Pearson symbol | hP2 |
| Space group number | 187 |
| Space group symbol | $P\overline{6}m2$ |
| AFLOW prototype command |
aflow --proto=AB_hP2_187_a_d-001
--params=$a, \allowbreak c/a$ |
Other compounds with this structure
AlSn, BIr, MoC, MoP, NbS, OsC, RuC, TaS, TeZr, TiS, WN
\[ \begin{array}{ccc}
\mathbf{a_{1}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}- \frac{\sqrt{3}}{2}a \,\mathbf{\hat{y}}\\\mathbf{a_{2}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{\sqrt{3}}{2}a \,\mathbf{\hat{y}}\\\mathbf{a_{3}}&=&c \,\mathbf{\hat{z}}
\end{array}\]
Basis vectors
| Lattice coordinates | Cartesian coordinates | Wyckoff position | Atom type | |||
|---|---|---|---|---|---|---|
| $\mathbf{B_{1}}$ | = | $0$ | = | $0$ | (1a) | C I |
| $\mathbf{B_{2}}$ | = | $\frac{1}{3} \, \mathbf{a}_{1}+\frac{2}{3} \, \mathbf{a}_{2}+\frac{1}{2} \, \mathbf{a}_{3}$ | = | $\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{\sqrt{3}}{6}a \,\mathbf{\hat{y}}+\frac{1}{2}c \,\mathbf{\hat{z}}$ | (1d) | W I |
References
- J. Leciejewicz, A note on the structure of tungsten carbide, Acta Cryst. 14, 200 (1961), doi:10.1107/S0365110X6100067X.
Found in
- W. B. Pearson, The Crystal Chemistry and Physics of Metals and Alloys (Wiley Interscience, New York, London, Sydney, Tornoto, 1972).
Prototype Generator
aflow --proto=AB_hP2_187_a_d --params=$a,c/a$