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Composition, grain size, hardness and fracture toughness of the tested materials
| Specimen | Composition (wt%) | Grain size (μm) | Hardness (HV0.5) | Fracture toughness KIC (MPa m1/2) |
|---|---|---|---|---|
| MoB [184] | 94WC, 6Mo2O | 0.25 | 2400 | 8.4 |
| TiB1 [184] | 94.6WC, 3TiC, 2TaC, 0.2Cr3C2, 0.2VC | 0.6 | 2300 | 7.9 |
| TiB2 [188] | 95WC, 3TiC, 2TaC | 2.0 | 1900 | 7.9 |
| CC [188] | 94WC, 6Co | 7 | 1200 | 15 |
| Al2O3 [188] | 96.95Al2O3, 0.25MgO, 2.8ZrO2 | 1.9 | 1820 | 5.4 |
