A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POLYCRYSTALLINE COMPACTS INCLUDING GRAINS OF HARD MATERIAL, EARTH BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND TOOLS
Polycrystalline compacts include a polycrystalline superabrasive material comprising a first plurality of grains of superabrasive material having a first average grain size and a second plurality of grains of superabrasive material having a second average grain size smaller than the first average grain size. The first plurality of grains is dispersed within a substantially continuous matrix of the second plurality of grains. Earth-boring tools may include a body and at least one polycrystalline compact attached thereto. Methods of forming polycrystalline compacts may include coating relatively larger grains of superabrasive material with relatively smaller grains of superabrasive material, forming a green structure comprising the coated grains, and sintering the green structure. Other methods include mixing diamond grains with a catalyst and subjecting the mixture to a pressure greater than about five gigapascals (5.0 GPa) and a temperature greater than about 1,300° C. to form a polycrystalline diamond compact.
POLYCRYSTALLINE COMPACTS INCLUDING GRAINS OF HARD MATERIAL, EARTH BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND TOOLS
Polycrystalline compacts include a polycrystalline superabrasive material comprising a first plurality of grains of superabrasive material having a first average grain size and a second plurality of grains of superabrasive material having a second average grain size smaller than the first average grain size. The first plurality of grains is dispersed within a substantially continuous matrix of the second plurality of grains. Earth-boring tools may include a body and at least one polycrystalline compact attached thereto. Methods of forming polycrystalline compacts may include coating relatively larger grains of superabrasive material with relatively smaller grains of superabrasive material, forming a green structure comprising the coated grains, and sintering the green structure. Other methods include mixing diamond grains with a catalyst and subjecting the mixture to a pressure greater than about five gigapascals (5.0 GPa) and a temperature greater than about 1,300° C. to form a polycrystalline diamond compact.
POLYCRYSTALLINE COMPACTS INCLUDING GRAINS OF HARD MATERIAL, EARTH BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND TOOLS
POLYKRISTALLINE PRESSLINGE MIT KÖRNERN AUS EINEM HARTEN MATERIAL, ERDBOHRWERKZEUGE MIT SOLCHEN PRESSLINGEN SOWIE VERFAHREN ZUR FORMUNG SOLCHER PRESSLINGE UND WERKZEUGE
COMPACTS POLYCRISTALLINS COMPRENANT DES GRAINS DE MATIÈRE DURE, OUTILS DE FORAGE DU SOL COMPRENANT DE TELS COMPACTS ET PROCÉDÉS DE FORMATION DE TELS COMPACTS ET DE TELS OUTILS
SCOTT DAN E (author) / DIGIOVANNI ANTHONY A (author) / AGRAVAL GAURAV (author) / CHAKRABORTY SOMA (author)
2021-03-24
Patent
Electronic Resource
English
IPC:
B22F
Verarbeiten von Metallpulver
,
WORKING METALLIC POWDER
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B24D
TOOLS FOR GRINDING, BUFFING OR SHARPENING
,
Werkzeuge zum Schleifen, Polieren oder Schärfen
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C04B
Kalk
,
LIME
/
C22C
Legierungen
,
ALLOYS
/
E21B
EARTH OR ROCK DRILLING
,
Erd- oder Gesteinsbohren
| European Patent Office | 2017
| European Patent Office | 2016
| European Patent Office | 2019
| European Patent Office | 2019
| European Patent Office | 2015