Catalysts: NiMn powder for Diamond Synthesis

01

Description

POLEMA produces metal powders and granules for non-coated catalysts used in various chemical processes.

NiMn alloy powder used as a catalyst in diamond synthesis contributes to an increase in the degree of graphite conversion and the size of synthetic diamonds due to its fine flaky structure.

02

specifications

Rapid quenched nickel-manganese alloy powder of a flaky shape is widely applied in various-sized synthetic diamonds production.

This powder is used as a catalyst in a reaction mix with pure graphite.

Chemical composition:

*Name*	*Nominal composition, %*
*Name*	Mn	Ni	C
AP-MnNi40N1	base	40	≤ 0.3
AP-MnNi40N2	base	40	≤ 0.3
AP-MnNi40Nb1	base	40	0.8-1.5
AP-MnNi40Nb2	base	40	0.8-1.5
AP-MnNi40Si1	base	40	1.5-2.5
AP-MnNi40Si2	base	40	1.5-2.5

Particle Size Powder Classes:

*Powder class*	*Main cut, micron*	*Bulk density, g/ccm*
1	≤100	3.7-4.5
2	50-315	2-3
3	100-400	1.8-2.5
3А	100-400	2.5-3
4	315-800	1.4-2
5	400-1250	1-1.3
6	400-1250	1.4-1.6
7	400-1250	1.65-2

03

advantages

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High homogeneity of the reaction mix with dispersed graphite

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Varying of the reaction mix with bulk density

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Good plasticity and formability ensure a large contact area between the catalyst and graphite

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High uniformity and fine-grained structure

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Min impurity content in the alloy

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The catalyst increases the degree of graphite conversion, the hardness, and the size of the diamond

04

Product names

Below are examples of product names:

AP-MnNi40N1,
AP-MnNi40N2,
AP-MnNi40Nb1,
AP-MnNi40Nb2,
AP-MnNi40Si1,
AP-MnNi40Si2

You can contact our sales managers for more details at:

export_polema@metholding.com,

tel.: +7(4872)25-06-76.

05

chemical composition

*Name*	*Nominal composition, %*
*Name*	Mn	Ni	C
AP-MnNi40N1	base	40	≤ 0.3
AP-MnNi40N2	base	40	≤ 0.3
AP-MnNi40Nb1	base	40	0.8-1.5
AP-MnNi40Nb2	base	40	0.8-1.5
AP-MnNi40Si1	base	40	1.5-2.5
AP-MnNi40Si2	base	40	1.5-2.5

06

miscellaneous

Particle sizes are agreed with the customer.

07

Application areas