DIAMOND SINTERING PROCEDURE AND DIAMOND CRYSTALS DEVELOPMENT.

摘要

The invention relates to a process for manufacturing a bonded and coherent material that includes a mass of diamond crystals in a matrix, which optionally contains another phase. The process includes other steps for creating a source of diamond crystals, providing a plurality of diamond centers defined by diamond crystals, introducing a reactive mass by bringing the source and the growth centers into contact with a solvent / catalyst. , subject the reactant mass to conditions of high temperature and pressure suitable for the growth of the crystals in the reaction zone of a high temperature / high pressure apparatus to produce the material, and remove the materials from the reaction zone. The process is characterized in that it provides the necessary supersaturation of carbon in the solvent / catalyst, at least in part and preferably predominantly, by selecting the difference in particle size between the source of crystals and that of the growth centers. The mass of diamond crystals in the matrix of the coherent agglomerated material of the invention has a high concentration of mixtures of diamond crystals.