Patent application number | Description | Published |
20080206576 | Superabrasive compact including diamond-silicon carbide composite, methods of fabrication thereof, and applications therefor - Embodiments of the present invention relate to diamond-silicon carbide composites, superabrasive compacts including such diamond-silicon carbide composites, and methods of fabricating such diamond-silicon carbide composites and superabrasive compacts. In one embodiment, a superabrasive compact includes a substrate and a superabrasive table bonded to the substrate. The superabrasive table comprises diamond-silicon carbide composite including a matrix comprising nanometer-sized silicon carbide grains and micrometer-sized diamond grains dispersed through the matrix. In another embodiment, a method of fabricating a superabrasive compact is disclosed. An assembly comprising a mixture including diamond particles and silicon is formed. The silicon comprises amorphous silicon, crystalline silicon crystallized from amorphous silicon formed by a milling process, or combinations thereof. A substrate is positioned in proximity to the mixture. The assembly is subjected to heat and pressure to form a superabrasive compact comprising a superabrasive table bonded to the substrate. The superabrasive table comprises diamond-silicon carbide composite including diamond grains dispersed through a matrix of silicon carbide grains. | 08-28-2008 |
20080215158 | Prosthetic hip joint having polycrystalline diamond articulation surfaces and at least one solid polycrystalline diamond compact - A prosthetic joint in which at least one bearing component is made from solid diamond. | 09-04-2008 |
20090046967 | BEARINGS, RACES AND COMPONENTS THEREOF HAVING DIAMOND AND OTHER SUPERHARD SURFACES - Diamond bearings and bearing components are disclosed. Some embodiments of the bearings and bearing components include polycrystalline diamond compacts sintered under high pressure and high temperature to create a diamond table chemically and mechanically bonded to a substrate, the diamond table presenting a durable and thermally stable load bearing and articulation surface. | 02-19-2009 |
20090158670 | SUPERABRASIVE ELEMENT COMPRISING ULTRA-DISPERSED DIAMOND GRAIN STRUCTURES, STRUCTURES UTILIZING SAME, AND METHODS OF MANUFACTURE - Superabrasive elements, methods of fabricating such elements, and applications utilizing such elements. In one embodiment, a superabrasive element includes a mass of polycrystalline diamond including ultra-dispersed diamond grain structures present in an amount greater than zero weight percent and less than about 75 weight percent of the mass of polycrystalline diamond. Various structures and apparatuses that utilize the superabrasive elements, such as polycrystalline diamond compacts (PDCs) and drill bits are disclosed. Methods of manufacture are also disclosed. | 06-25-2009 |
20090218287 | Solid phase extraction apparatuses and methods - Embodiments of the present invention relate to solid phase extraction (“SPE”) apparatuses that include a sintered polycrystalline diamond (“PCD”) stationary phase and methods of performing SPE using a sintered PCD stationary phase. In one embodiment, an SPE cartridge includes a housing that comprises a proximal first end including a housing inlet, a distal second end including a housing outlet, and an interior space extending between the housing inlet and the housing outlet. An SPE stationary phase may be positioned within the interior space and includes an inlet and an outlet. The SPE stationary phase comprises a mass of sintered diamond grains including a plurality of passageways extending therethrough between the inlet and the outlet. In other embodiments, an SPE apparatus may employ a sintered PCD stationary phase in the form of a disk. In yet another embodiment of the present invention, an SPE stationary phase of an SPE apparatus may comprise un-sintered diamond particles. | 09-03-2009 |
20090260895 | Polycrystalline diamond materials, methods of fabricating same, and applications using same - Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to a HPHT process, PCD materials so-formed, and PDCs including a polycrystalline diamond table comprising such PCD materials. In an embodiment, a method includes subjecting a mixture to heat and pressure sufficient to form a PCD material. The mixture comprises a plurality of diamond particles exhibiting a diamond particle size distribution characterized, in part, by a parameter θ that is less than about 1.0, where | 10-22-2009 |
20100084196 | POLYCRYSTALLINE DIAMOND, POLYCRYSTALLINE DIAMOND COMPACT, METHOD OF FABRICATING SAME, AND VARIOUS APPLICATIONS - Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteads (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm | 04-08-2010 |
20100096587 | POLYCRYSTALLINE ARTICLES FOR REAGENT DELIVERY - A reagent delivering article comprising porous sintered polycrystalline diamond where the delivering article is capable of retaining at least one chemical reagent and releasing the chemical reagent in a fluid or has reactive sites on diamond surfaces of the article. | 04-22-2010 |
20100307069 | POLYCRYSTALLINE DIAMOND COMPACT - Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteads (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm | 12-09-2010 |
20100307070 | METHOD OF FABRICATING POLYCRYSTALLINE DIAMOND AND A POLYCRYSTALLINE DIAMOND COMPACT - Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteads (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm | 12-09-2010 |
20100310855 | POLYCRYSTALLINE DIAMOND - Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteads (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm | 12-09-2010 |
20110017519 | POLYCRYSTALLINE DIAMOND COMPACTS, METHOD OF FABRICATING SAME, AND VARIOUS APPLICATIONS - Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, polycrystalline diamond compact (“PDC”) includes a PCD table having a maximum thickness. At least a portion of the PCD table includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteds (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm | 01-27-2011 |
20110189468 | POLYCRYSTALLINE DIAMOND COMPACT AND METHOD OF FABRICATING SAME - Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteads or more and a specific magnetic saturation of about 15 Gauss·cm | 08-04-2011 |
20110210056 | GAS PHASE APPROACH TO IN-SITU/EX-SITU FUNCTIONALIZATION OF POROUS GRAPHITIC CARBON VIA RADICAL-GENERATED MOLECULES - Embodiments disclosed herein include graphitic stationary phase materials functionalized through a gas-phase functionalization reaction, as well as and methods for making and using these materials, including the use of these materials in separation technologies such as, but not limited to, chromatography and solid phase extraction. In an embodiment, a functionalized graphitic stationary phase material may be prepared from high surface area porous graphitic carbon and a radical forming volatilized functionalizing agent. The radical forming volatilized functionalizing agent produces an intermediate that forms a covalent bond with the surface of the porous graphitic material and imparts desired properties to the surface of the graphitic carbon. | 09-01-2011 |
20110225896 | METHODS OF FABRICATING POLYCRYSTALLINE DIAMOND ELEMENTS AND COMPACTS USING SP2-CARBON-CONTAINING PARTICLES - Methods of fabricating polycrystalline diamond elements and compacts using sp | 09-22-2011 |
20110258937 | METHODS OF FABRICATING A SUPERABRASIVE COMPACT INCLUDING A DIAMOND-SILICON CARBIDE COMPOSITE TABLE - Embodiments relate to superabrasive compacts including a diamond-silicon carbide composite table, and methods of fabricating such superabrasive compacts. In an embodiment, a method of fabricating a superabrasive compact is disclosed. An assembly comprising a mixture including diamond particles and silicon is formed. The silicon comprises amorphous silicon, crystalline silicon crystallized from amorphous silicon formed by a milling process, or combinations thereof. A substrate is positioned in proximity to the mixture. The assembly is subjected to a high-pressure/high-temperature process to form a superabrasive compact comprising a superabrasive table bonded to the substrate. The superabrasive table comprises diamond-silicon carbide composite including diamond grains dispersed through a matrix of silicon carbide grains. | 10-27-2011 |
20120011779 | POLYCRYSTALLINE DIAMOND MATERIALS AND RELATED PRODUCTS - Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to an HPHT process, PCD materials so-formed, and PDCs including a polycrystalline diamond table comprising such PCD materials. In an embodiment, a PCD material includes a plurality of bonded diamond grains that exhibit a substantially unimodal diamond grain size distribution characterized, at least in part, by a parameter θ that is less than about 1.0. | 01-19-2012 |
20120181090 | ROTARY DRILL BIT INCLUDING AT LEAST ONE SUPERABRASIVE CUTTING ELEMENT HAVING A DIAMOND-SILICON CARBIDE COMPOSITE TABLE - Embodiments relate to rotary drill bits that employ superabrasive cutting elements including a diamond-silicon carbide composite table. In an embodiment, a rotary drill bit includes a bit body configured to engage a subterranean formation. The bit body includes a plurality of blades. The rotary drill bit further includes a plurality of superabrasive cutting elements. Each of the superabrasive cutting elements is attached to a corresponding one of the cutting blades. At least one of the superabrasive cutting elements includes a substrate and a superabrasive table bonded to the substrate. The superabrasive table comprises diamond-silicon carbide composite including a matrix comprising nanometer-sized silicon carbide grains and micrometer-sized diamond grains dispersed through the matrix. | 07-19-2012 |
20120228037 | SUPERABRASIVE ELEMENTS, METHODS OF MANUFACTURING, AND DRILL BITS INCLUDING SAME - Methods of manufacturing a superabrasive element and/or compact are disclosed. In one embodiment, a superabrasive volume including a tungsten carbide layer may be formed. Polycrystalline diamond elements and/or compacts are disclosed. Rotary drill bits for drilling a subterranean formation and including at least one superabrasive element and/or compact are also disclosed. | 09-13-2012 |
20120241226 | POLYCRYSTALLINE DIAMOND, POLYCRYSTALLINE DIAMOND COMPACTS, METHODS OF MAKING SAME, AND APPLICATIONS - Embodiments of the invention relate to polycrystalline diamond compacts (“PDC”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, a PDC includes a polycrystalline diamond (“PCD”) table bonded to a substrate. At least a portion of the PCD table includes a plurality of diamond grains defining a plurality of interstitial regions. The plurality of interstitial regions includes a metal-solvent catalyst. The plurality of diamond grains exhibit an average grain size of about 30 μm or less. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit an average electrical conductivity of less than about 1200 S/m. Other embodiments are directed to PCD, employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies. | 09-27-2012 |
20120267174 | METHODS OF FABRICATING POLYCRYSTALLINE DIAMOND ELEMENTS AND COMPACTS USING SP2-CARBON-CONTAINING PARTICLES - In an embodiment, a polycrystalline diamond compact includes a polycrystalline diamond table having nanocrystalline diamond present in an amount greater than zero weight percent to about 5 weight percent of the polycrystalline diamond table. The polycrystalline diamond table including a catalyst material distributed throughout at least a portion thereof. The polycrystalline diamond compact includes a substrate bonded to the polycrystalline diamond table. | 10-25-2012 |
20130015001 | POLYCRYSTALLINE DIAMOND COMPACTS, METHOD OF FABRICATING SAME, AND VARIOUS APPLICATIONS - Embodiments of the invention relate to a polycrystalline diamond compact. In an embodiment, the polycrystalline diamond compact includes a substrate and a polycrystalline diamond table including a first polycrystalline diamond layer bonded to the substrate and at least a second polycrystalline diamond layer. At least an un-leached portion of the polycrystalline diamond table includes a plurality of diamond grains defining a plurality of interstitial regions and a metal-solvent catalyst occupying at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oe or more and a specific magnetic saturation of about 15 G·cm | 01-17-2013 |
20130043078 | POLYCRYSTALLINE DIAMOND COMPACT INCLUDING A CARBONATE-CATALYZED POLYCRYSTALLINE DIAMOND TABLE AND APPLICATIONS THEREFOR - In an embodiment, a polycrystalline diamond compact includes a substrate and a preformed polycrystalline diamond table bonded to the substrate. The table includes bonded diamond grains defining interstitial regions. The table includes an upper surface, a back surface bonded to the substrate, and at least one lateral surface extending therebetween. The table includes a first region extending inwardly from the upper surface and the lateral surface. The first region exhibits a first interstitial region concentration and includes at least one interstitial constituent disposed therein, which may be present in at least a residual amount and includes at least one metal carbonate and/or at least one metal oxide. The table includes a second bonding region adjacent to the substrate that extends inwardly from the back surface. The second bonding region exhibits a second interstitial region concentration that is greater than the first interstitial region concentration and includes a metallic infiltrant therein. | 02-21-2013 |
20130056401 | GAS PHASE APPROACH TO IN-SITU/EX-SITU FUNCTIONALIZATION OF POROUS GRAPHITIC CARBON VIA RADICAL-GENERATED MOLECULES - Embodiments disclosed herein include graphitic stationary phase materials functionalized through a gas-phase functionalization reaction, as well as and methods for making and using these materials, including the use of these materials in separation technologies such as, but not limited to, chromatography and solid phase extraction. In an embodiment, a functionalized graphitic stationary phase material may be prepared from high surface area porous graphitic carbon and a radical forming volatilized functionalizing agent. The radical forming volatilized functionalizing agent produces an intermediate that forms a covalent bond with the surface of the porous graphitic material and imparts desired properties to the surface of the graphitic carbon. | 03-07-2013 |
20130105232 | ROTARY DRILL BIT INCLUDING POLYCRYSTALLINE DIAMOND CUTTING ELEMENTS | 05-02-2013 |
20130205677 | METHODS OF FABRICATING A POLYCRYSTALLINE DIAMOND COMPACT - In an embodiment, a method of fabricating a polycrystalline diamond compact is disclosed. The method includes sintering a plurality of diamond particles in the presence of a metal-solvent catalyst to form a polycrystalline diamond body; leaching the polycrystalline diamond body to at least partially remove the metal-solvent catalyst therefrom, thereby forming an at least partially leached polycrystalline diamond body; and subjecting an assembly of the at least partially leached polycrystalline diamond body and a cemented carbide substrate to a high-pressure/high-temperature process at a pressure to infiltrate the at least partially leached polycrystalline diamond body with an infiltrant. The pressure of the high-pressure/high-temperature process is less than that employed in the act of sintering of the plurality of diamond particles. | 08-15-2013 |
20130269263 | METHODS OF FABRICATING ABRASIVE ELEMENTS USING SP2-CARBON-CONTAINING PARTICLES - In an embodiment, a method of forming an abrasive element is disclosed. The method includes sintering a powder mixture including a plurality of superabrasive particles, a plurality of sp | 10-17-2013 |