WO2025083478 - A METHOD OF MANUFACTURING A LARGE POLYCRYSTALLINE COMPOSITE BLANK WITH A DIAMOND MATRIX

National phase entry is expected:
Publication Number WO/2025/083478
Publication Date 24.04.2025
International Application No. PCT/IB2024/057084
International Filing Date 22.07.2024
Title **
[English] A METHOD OF MANUFACTURING A LARGE POLYCRYSTALLINE COMPOSITE BLANK WITH A DIAMOND MATRIX
[French] PROCÉDÉ DE FABRICATION D'UNE ÉBAUCHE COMPOSITE POLYCRISTALLINE DE GRANDE TAILLE AVEC UNE MATRICE DE DIAMANT
Applicants **
QUANTUM CRYSTALS MANAGEMENT L.L.C
Inventors
TKATCHENKO, Valeri
GROMOVS, Aleksejs
Priority Data
23204831.4   20.10.2023   EP
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Quotation for National Phase entry

Country StagesTotal
China Filing, Examination, Granting1956
EPO Filing, Examination, Granting9194
Japan Filing, Examination, Granting1924
South Korea Filing, Examination, Granting1593
USA Filing, Examination, Granting4740
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Total: 19,407

The term for entry into the National Phase has expired. This quotation is for informational purposes only

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Abstract[English] The invention relates to sintering composite materials based on polycrystalline diamond from a homogeneous, specially prepared mixture of diamond powders with a binder material. The technical problem is to create a possibility to produce a large-sized blank that has homogeneous composition throughout its entire volume, without any free metal catalyst within its structure. A method for producing a large-sized blank made of a polycrystalline composite with a diamond matrix (PCDM) comprises: mixing previously activated with a low-temperature plasma diamond powders in the liquid inert medium, with the addition of aluminum and cobalt powders; evaporating the liquid, forming the green blank and sintering that by the НРНТ method up to formation of the large-sized blank made of PCDM which has a homogeneous composition throughout its entire volume.[French] L'invention concerne le frittage de matériaux composites à base de diamant polycristallin à partir d'un mélange homogène spécialement préparé de poudres de diamant et d'un matériau liant. Le problème technique consiste à créer une possibilité de produire une ébauche de grande taille qui présente une composition homogène sur tout son volume, sans aucun catalyseur métallique libre à l'intérieur de sa structure. Un procédé de production d'une ébauche de grande taille constituée d'un composite polycristallin avec une matrice de diamant (PCDM) consiste à : mélanger la surface des poudres de diamant précédemment activée avec des poudres de diamant à plasma basse température dans le milieu inerte liquide, avec l'ajout de poudres d'aluminium et de cobalt ; évaporer le liquide, former l'ébauche crue et fritter, au moyen du procédé НРНТ, jusqu'à la formation de l'ébauche de grande taille constituée de PCDM qui présente une composition homogène sur tout son volume.

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