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

Grade	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
3A	100-400	1,8-2,5
4	100-400	2,5-3,0
5	315-800	1,4-2,0
6	400-1250	1,0-1,3
7	400-1250	1,4-1,6
8	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.