Polycrystalline Diamond
Polycrystalline Diamond is formed in high pressures and high temperatures. By using accelerant of cobalt, grains are connected upon Tungsten Carbide or inside of Tungsten Carbide. After sintering, it becomes a composite. PCD shows no sequence, no aspect, and even hardness.
- Polycrystalline Diamond
- Hardness：HV6,500~HV8,000
- Characteristics：High Abrasion resistance and Heat conduction; low coefficients of friction and hot expending.
- Functions：Precision cutting, Heavy cutting, Rough cutting, and Non-successive cutting, etc.
- Worked materials： Non-Ferrous Metal & Non-Metal Material.
- Aluminum alloys
- Copper alloys
- Plastic complex materials
- Graphite, etc.
Mechanical & Thermal Properties Of Polycrystalline Diamond
| Property | Polycrystalline Diamond |
| Density (g/cm3) | 4.44 |
| Bulk Modulus (GPa) | 378 |
| Fracture Toughness(MPa.m 1/2) | 8.17 |
| Young’s Modulus (GPa) | 901 |
| Poisson’s Ratio | 0.102 |
| Shear modulus (GPa) | 409 |
| Speed of sound-(long.) (m/s) | 14408 |
| Speed of sound-(trans.) (m/s) | 9589 |
| Transverse Rupture Strength (MPa) | 1560 |