| Diameter[直径] |
1mm |
| Grade[等级] |
Graphite |
| Length[长度] |
50 mm - 100 mm |
| Particle Size[粒径] |
Ultrafine 1-5 Microns |
| Purity[纯度] |
99.95% |
| Typical Analysis(典型分析) |
| Al |
5 PPM |
| Ba |
1 PPM |
| Ca |
50 PPM |
| Co |
<5 PPM |
| Cr |
<5 PPM |
| Cu |
<5 PPM |
| Fe |
5 PPM |
| Ni |
50 PPM |
| Si |
<5 PPM |
| Ti |
30 PPM |
| V |
100 PPM |
| Zr |
<20 PPM |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
0.600 - 4.300 @0-100℃ |
| Melting point ( C ) |
3650.00 |
| Specific heat ( J K?? kg?? ) |
712.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
80.00 - 240.00 @0-100℃ |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Diamond ) |
542.0 |
| Bulk modulus ( GPa ) ( Graphite ) |
33.0 |
| Hardness - Mohs ( Diamond ) |
10.00 |
| Hardness - Mohs ( Graphite ) |
0.50 - 1.00 |
| Material condition |
Diamond |
| Material condition |
Graphite |
| Tensile modulus ( GPa ) ( Graphite ) |
4.80 |
| Atomic Properties(原子属性) |
| Atomic number |
6 |
| Atomic weight ( amu ) |
12.01100 |
| Crystal structure |
Hexagonal/Diamond |
| Electronic structure |
He2s?2p? |
| Ionisation potential ( No./eV ) |
6 / 490 |
| Ionisation potential ( No./eV ) |
4 / 64.5 |
| Ionisation potential ( No./eV ) |
1 / 11.26 |
| Ionisation potential ( No./eV ) |
3 / 47.9 |
| Ionisation potential ( No./eV ) |
2 / 24.38 |
| Ionisation potential ( No./eV ) |
5 / 392 |
| Natural isotope distribution ( Mass No./% ) |
12 / 98.89 |
| Natural isotope distribution ( Mass No./% ) |
13 / 1.11 |
| Photo-electric work function ( eV ) |
4.80 |
| Thermal neutron absorption cross-section ( Barns ) |
0.0034 |
| Valences shown |
2 , 3, 4 |
| Physical Properties(物理性质) |
| Boiling point ( C ) |
5000 |
| Density ( g cm?? ) |
2.250 @20℃ |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) |
1375@0℃ |
| Thermal emf against Pt (cold 0C - hot 100C) ( mV ) |
0.70 |
