13.10/2023
POLEMA presented at the“BIOTECHMED” its innovative medical products
11.07/2023
POLEMA at INNOPROM in Ekaterinburg
Certificate ISO 9001:2015 (0.564 мб)
Nickel-manganese powder for diamond synthesis
Use
Fast-quenched powder of the nickel-manganese alloy AP-MnNi40 in flake form is widely used in producing synthesized diamonds of various sizes.
The powder is used as a catalyst in a reaction mixture with pure graphite.
Chemical composition
| Brand | Nominal composition, % | ||
| Mn | Ni | C | |
| AP-MnNi40 grade A1 | base | 40 | ≤ 0,3 |
| AP-MnNi40 grade A2 | base | 40 | ≤ 0,3 |
| AP-MnNi40 grade B1 | base | 40 | 0,8-1,5 |
| AP-MnNi40 grade B2 | base | 40 | 0,8-1,5 |
| AP-MnNi40 grade C1 | base | 40 | 1,5-2,5 |
| AP-MnNi40 grade C2 | base | 40 | 1,5-2,5 |
Powder classes by particle size
| Powder class | Base fraction, microns | Packed density, g/cm3 |
| 1 | ≤ 100 | 3,7-4,5 |
| 2 | 50-315 | 2,0-3,0 |
| 3 | 100-400 | 1,8-2,5 |
| 3А | 100-400 | 2,5-3,0 |
| 4 | 315-800 | 1,4-2,0 |
| 5 | 400-1250 | 1,0-1,3 |
| 6 | 400-1250 | 1,4-1,6 |
| 7 | 400-1250 | 1,65-2,0 |
Key technological advantages of the catalyst:
- high homogeneity of the reaction mixture with dispersive graphite;
- the ability to vary the packed density of the reaction mixture;
- the structure's high homogeneity and grain fineness;
- minimal content of impurities in the alloy;
- good plasticity and shapability ensure a wide field of contact between the catalyst and the graphite;
- the catalyst boosts the level of graphite transmutation and the hardness and sizes of the diamonds.
