DIAMOND-CONTAINING SUBSTANCE AND A METHOD OF ITS PREPARING Russian patent published in 1995 - IPC

FIELD: composition materials. SUBSTANCE: diamond-containing substance consists of rounded particles with gaseous inclusions containing 70-90 wt.-% diamond of cubical modification and the rest roentgeno-amorphous mass of the following composition, wt.-% carbon 78-90; hydrogen 0.8-1.2; nitrogen 1.5-4.5 and oxygen the rest. The size of coherent scattering region is 2-6 nm, specific surface square is 250-450 m²/g; carboxyl, quinone, methyl, two various hydroxyl groups, carbonyl, lactone, nitrile and hydroperoxide surface functional groups occupy 10-20% diamond-containing substance surface; carbon atoms with noncompensated bonds occupy 1-2% surface. Parameter of crystal lattice of new substance is 0,3562± 0,0003 nm. Method preparing of new diamond-containing substance involves injury of explosive charge in closed volume in atmosphere 0.1-6.0 vol. oxygen and inert gas the rest, at 303-363 K, in the presence of ultradispersed diamond phase at concentration 0,01-0,15 kg/m³. New diamond-containing substance can be used in lubricant materials, for composition coating and chromatography material producing. EFFECT: enhanced reactivity of substance. 3 cl, 4 dwg, 1 tbl