Data
Character table：
| TiN | ZrN | |
|---|---|---|
| Nitrogen content[%] | 22.63 | 13.31 |
| Crystal structure | Cubic | Cubic |
| Lattice periods,kx. a | 4.249 | 4.537 |
| c | ||
| c/a | ||
| Density[g/cm3] calculated |
5.44 | 7.35 |
| experimental | 5.43 | 7.09 |
| Microhardness 100g [kg/mm2] |
2050 | 1670 |
| Melting Point[℃] | 2950 | 2980 |
| Heat of formation ΔH°(298）[Kcal/mol] |
-80.4 | -87.3 |
| Entropy S°(298) [Kcal/mol・℃] |
7.24±0.1 | 9.3±0.1 |
| Specific electrical resistance[μΩ・cm] at 20℃ |
40 | 18 |
| Point of transition to superconductivity °K |
5.6 | 9.8 |
(Reference) Hand book refractory compounds (metallurgiya in Moscow 1976 editions)
