Samples | Chemical composition (wt %) |
| ||
C | O | Hf | 化学式 | |
PHCO-1000 | 14.18 | 14.17 | 71.65 | C2.9O2.2Hf |
PHCO-1200 | 11.15 | 10.68 | 78.17 | C2.1O1.5Hf |
PHCO-1200-V | 9.24 | 8.78 | 81.98 | C1.7O1.2Hf |
PHCO-1400 | 3.35 | 3.82 | 92.83 | C0.5O0.4Hf |
PHCO-1400-V | 4.89 | 2.77 | 92.34 | C0.8O0.3Hf |
PHCO-1600 | 3.58 | 3.60 | 92.82 | C0.6O0.4Hf |
PHCO-1600-V | 4.59 | 1.89 | 93.52 | C0.7O0.2Hf |