PURE TUNGSTEN | ||||||||
Compaction Pressure (MPa) | % Porosity | Pore volume fraction, φ | 1 − φ | initial pore vol. fraction of vibrated powder, φ0 |
| σp (Montes Theory) (% IACS) | σp = σef Maxwell-Garnett (% IACS) | σp = σef Bruggeman (% IACS) |
100 | 49.5 | 0.495 | 0.505 | 0.854 | 0.580 | 10.78 | 12.50 | 7.95 |
150 | 45.0 | 0.450 | 0.550 | 0.854 | 0.527 | 12.57 | 13.86 | 10.03 |
200 | 41.0 | 0.410 | 0.590 | 0.854 | 0.480 | 14.12 | 15.11 | 11.88 |
250 | 37.5 | 0.375 | 0.625 | 0.854 | 0.439 | 15.55 | 16.24 | 13.50 |
300 | 32.0 | 0.320 | 0.680 | 0.854 | 0.375 | 17.74 | 18.10 | 16.04 |
PURE MOLYBDENUM | ||||||||
100 | 42.0 | 0.420 | 0.580 | 0.70 | 0.600 | 8.51 | 14.80 | 11.42 |
150 | 37.0 | 0.370 | 0.630 | 0.70 | 0.529 | 10.87 | 16.41 | 13.73 |
200 | 34.0 | 0.340 | 0.660 | 0.70 | 0.486 | 12.34 | 17.41 | 15.12 |
250 | 28.0 | 0.280 | 0.720 | 0.70 | 0.400 | 15.43 | 19.49 | 17.90 |
300 | 25.0 | 0.250 | 0.750 | 0.70 | 0.357 | 17.00 | 20.57 | 19.29 |