| GRADE |
DFP-1 |
TRA-1 |
CZR-1 |
| Avg. Density (gms/cm^3) |
1.82 |
1.74 |
1.65 |
| Strength (RT) |
|
|
|
|
Compressive (psi) |
22,000 |
18,000 |
15,000 |
| Flexural (psi) |
13,000 |
9,500 |
7,500 |
| Tensile (psi) |
10,000 |
7,000 |
5,000 |
| Hardness (Scleroscope C-2) |
77 |
73 |
69 |
| Avg. Pore Sz (microns) |
0.8 |
0.7 |
0.6 |
| Typical Particle Sz (microns) |
<4 |
<5 |
<6 |
| Electrical Resistivity (70'F) |
|
|
|
| (ohm inches) |
530 |
630 |
750 |
| (ohm cm) |
1350 |
1600 |
1900 |
| Thermal Conductivity (70'F) |
|
|
|
| (btu-ft./hr.-ft. 2-'C) |
70 |
60 |
44 |
| (Cal-cm/sec-cm^2-'C) |
0.29 |
0.25 |
0.18 |
| Coefficient of Thermal Expansion |
|
|
|
| inch/ inch/ 'F x 10^-6 |
4.7 |
4.6 |
4.3 |
| inch/ inch/ 'C x 10^-6 |
8.4 |
8.2 |
7.8 |
| Oxidation Threshold ('C) |
460 |
450 |
430 |
| Avg. Purity (ppm-total ash) |
700 |
700 |
700 |
| N/A |
GRADE |
HPD-1 |
SFG-1 |
DFP-1C |
| Avg. Density (gms/cm^3) |
1.82 |
1.81 |
3.05 |
| Strength (RT) |
|
|
|
| Compressive (psi) |
24,000 |
28,000 |
30,000 |
| Flexural (psi) |
14,000 |
18,000 |
16,500 |
| Tensile (psi) |
10,000 |
13,000 |
N/A |
| Hardness (Scleroscope C-2) |
84 |
90 |
67 |
| Avg. Pore Sz (microns) |
0.8 |
0.2 |
N/A |
| Typical Particle Sz (microns) |
<4 |
<1 |
<4 |
| Electrical Resistivity (70'F) |
|
|
|
| (ohm inches) |
730 |
690 |
120 |
| (ohm cm) |
1850 |
1750 |
300 |
| Thermal Conductivity (70'F) |
|
|
|
| (btu-ft./hr.-ft. 2-'C) |
60 |
70 |
102 |
| (Cal-cm/sec-cm^2-'C) |
0.25 |
0.29 |
0.42 |
| Coefficient of Thermal Expansion |
|
|
|
| inch/ inch/ 'F x 10^-6 |
4.7 |
4.3 |
4.8 |
| inch/ inch/ 'C x 10^-6 |
8.4 |
7.7 |
8.6 |
| Oxidation Threshold ('C) |
410 |
460 |
N/A |
| Avg. Purity (ppm-total ash) |
1000 |
700 |
N/A |