FIELD: process engineering.
SUBSTANCE: invention relates to production of diamonds and diamond polycrystalls. Proposed method comprises subjecting blend bearing carbon material and catalyst to pressure and temperature in the region of diamond thermodynamic stability. Catalyst represents a mix of metallic component with phosphorus, or the mix of alloys. Metallic component is selected from the group: iron, manganese, silicon. Metallic component-to-phosphorus ratio is selected so that to allow synthesis at temperature not exceeding 1450°C. Additionally, alloying metal may be added to said blend selected from the group: B, Si, Ti, Zr, Cr, Ni, Mo, Vo, or their mix, or alloy.
EFFECT: higher-strength and fraction resistance diamonds.
7 cl, 1 tbl, 4 ex
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|---|---|---|---|
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|
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