WO2001079583A2 - Diamants et trepans a diamant a durabilite accrue - Google Patents

Diamants et trepans a diamant a durabilite accrue Download PDF

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Publication number
WO2001079583A2
WO2001079583A2 PCT/US2001/012241 US0112241W WO0179583A2 WO 2001079583 A2 WO2001079583 A2 WO 2001079583A2 US 0112241 W US0112241 W US 0112241W WO 0179583 A2 WO0179583 A2 WO 0179583A2
Authority
WO
WIPO (PCT)
Prior art keywords
diamond
ions
titanium
nickel
diamonds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2001/012241
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English (en)
Other versions
WO2001079583A3 (fr
Inventor
Robert Radtke
James R. Treglio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technology International Inc
Original Assignee
Technology International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technology International Inc filed Critical Technology International Inc
Priority to AU2001255388A priority Critical patent/AU2001255388A1/en
Publication of WO2001079583A2 publication Critical patent/WO2001079583A2/fr
Publication of WO2001079583A3 publication Critical patent/WO2001079583A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/0027—Ion-implantation, ion-irradiation or ion-injection
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/0072—Heat treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/48—Ion implantation

Definitions

  • the present invention is directed to a diamond tool and diamond cutter having an improved durability and to the process for providing the improved mechanical properties.
  • Diamond types include natural diamonds, which are either single crystal or polycrystalline; synthetic polycrystalline diamond compacts commonly called PDC; synthetic polycrystalline composite diamonds commonly referred to as PCD; synthetic thermally-stable diamond compacts commonly referred to as TSP; plasma vapor-deposited diamonds commonly referred to as PVD; and chemically vapor-deposited diamonds.
  • cubic-boron nitride which is a diamond-like material and is called CBN, can also be used for a cutter in some instances.
  • Cubic carbon nitride known as CN forms a diamond-like coating for cutting tools.
  • Diamond types have different shapes and sizes naturally occurring and engineered for specific applications. Diamond types include those incorporated in drill bits and machine tools as cutters. Cutters often have substrates which provide a rigid support structure.
  • the diamond portion When attached to a substrate, the diamond portion is called a diamond table.
  • the cutting tip is the portion of the diamond table which engages the workpiece.
  • the workpiece can be a variety of materials including metals, intermetallics, ceramics, fiberglass and rock.
  • the substrate includes molybdenum, cobalt-bonded tungsten carbide, a tungsten carbide-copper alloy composite matrix or tool steel.
  • the polycrystalline composite diamond PCD and the polycrystalline diamond compacts PDC are compacts with the diamond table sintered to the cobalt-bonded tungsten carbide in situ during the manufacturing process.
  • the other types of diamonds are attached to substrates by either in situ sintering during their manufacturing, brazing or mechanical attachment methods.
  • Cutters formed with diamonds are often attached to a diamond tool, such as a drill bit head or machine tool holders and a diamond tool may be a wire drawing die attached to a holder.
  • Durability is a measure of the life of the cutter and is measured, in part, by impact strength, fracture toughness and abrasive wear resistance due to impact cutting. Mechanical tests measure the impact energy, which relates to the impact strength and fracture toughness. Fracture toughness is measured by the amount of energy required to propagate a crack or flaw in the cutter. High impact strength fracture toughness and abrasive resistance are, of course, desirable. However, it is often the case that diamond types of cutters have a low or moderate impact strength and moderate to high abrasive resistance.
  • Natural diamonds are used in hard rock drilling and in medical tools. Polycrystalline diamond compacts are used as cutters for petroleum and mining rock drilling.
  • the TSP is used for medium-hard rock drilling and wire drawing die materials.
  • the PCD, PVD, CVD and CBN cutters are used for machining abrasive materials, such as fiberglass and silicon- reinforced aluminum. PVD and CVD diamond coatings and cubic CN coatings are applied to tungsten carbide and other machine tools to increase abrasive wear resistance.
  • the PCD machine tool uses a fine-grain diamond-type with a high wear resistance and moderate impact strength/fracture toughness.
  • PDC cutters with a larger grain size have a somewhat greater impact strength and fracture toughness and moderate abrasive wear resistance.
  • the toughness in both diamond types is associated with the presence of cobalt.
  • TSP diamonds are made in different chemistries. One brand of TSP is a relatively pure diamond with no cobalt but has porosity as a result of removing cobalt by acid leeching after the process of forming the diamond.
  • PDC abrasive wear rates increase exponentially when a cutting tip temperature exceeds 350 °C.
  • Various grades of PDC material are produced by several manufacturers. These grades are tailored to provide the best combination of physical property for each application.
  • One consideration of significance to this invention is that the grain size may be varied from a small grain size of 5 ⁇ m average particle size to a medium size of 25 ⁇ m to a high or large size of 50 ⁇ m, which changes the performance.
  • the ability to vary the diamond table density by the use of diamond powder distribution of mixed sizes where the smaller diamond particles are provided to fill the gaps between the larger diamond particles.
  • Denser diamond tables have an increased abrasive resistance. Generally, small grain size distribution results in high abrasive resistance and low impact strength.
  • TSP diamond cutters Thermally stable polycrystalline known as TSP diamond cutters have relatively high abrasive resistance at temperatures that reach 1200°C.
  • the current state of the art diamond cutter attachment procedure is to furnace heat, resistance heat or induction braze the TSP diamonds to cobalt-bonded, fine-grain tungsten carbide substrates by means of a suitable brazing filler metal composition.
  • Average shear strength levels of 138MPa to 207MPa, which is 20,000-35, OOOpsi have been achieved using conventional direct resistance, induction and furnace heating methods.
  • the diamond tables can crack on cool-down. This, thus, increases the cost of preparing such cutters.
  • a major problem in developing an improved cutter is that the PDC conventional cutters cannot be used when the cutter temperature exceeds 350 °C due to the high abrasive wear rate. At about 750°C, the PDC cutters fail altogether. In comparison, a TSP diamond will graphitize and loose both strength and abrasive resistance if it is heated to more than 1200°C. In addition, a further limitation with TSP is the brittle nature of the material.
  • An object of the present invention is to provide diamond types and cutters of superior durability due to improved mechanical properties which are caused by a treatment of the diamond type.
  • a diamond-type tool such as a diamond-type cutter which has means for increasing the impact strength and fracture toughness of the diamond cutter. This means is by implantation of ions into the surface of the diamond member or cutter.
  • the object can also be obtained by relieving stresses by utilizing a microwave stress relief of the synthetic polycrystalline diamond types, diamond PVD and CVD coatings, naturally occurring diamonds, synthetic diamond grit, cubic boron nitride and cubic carbon nitride coatings.
  • the tool Before treating the tool to improve the durability, it is subjected to a testing to determine any flaws or cracks. This is by inducing stresses by rapid microwave heating and cooling.
  • the present inventions is also directed to a process or method of improving the durability of a diamond-type tool, such as a diamond cutter, by providing the diamond-type tool and treating the surfaces of the diamond-type tool to increase the impact strength and fracture toughness. This treatment is by implanting ions into the surface of the diamond-type tool.
  • BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an improved diamond cutter in accordance with the present invention
  • Fig. 2 is a schematic illustration of a direct ion implantation system with cathode arc ion sources
  • Fig. 3 is a graph showing impact force versus time for different samples.
  • the principles of the present invention are particulary useful when incorporated in a PDC diamond cutter, generally indicated at 10 in Fig. 1.
  • the diamond cutter 10 has a diamond table 11 which has been sintered to a cobalt-bonded tungsten carbide substrate or base 12 by a known method.
  • the cutter or tool 10 has been placed in an ion implantation reactor, generally indicated at 13 in Fig. 2, and subjected to an ion implantation which penetrates the surfaces of the diamond table in a range of depths of 0.02 ⁇ m to 0.2 ⁇ m, with the preferred depth being 0.1 ⁇ m.
  • This ion implantation does not change the structural shape of the tool and, therefore, a tool which has been subjected to the ion implantation is visually indistinguishable from that of a tool which has not been subjected to ion implantation.
  • the reactor 13 has a stage 14 on which the tool to be implanted is placed.
  • the stage is in a chamber 15, which is connected to an ion source 16, which is a metal target on a cathode.
  • the ions are selected from a group consisting of aluminum (Al 3+ ), argon (Ar + ), boron (B 3+ ), carbon (C* + ), calcium (Ca 2+ ), chromium (Cr 3+ ), hydrogen (H + ), nitrogen (N 5 *), nickel (Ni 2+ ), oxygen (O + ), ruthenium (Ru 4+ ), silicon (Si 4+ ), tantalum (Ta 5+ ), titanium (Ti 2+ ), yttrium (Y 3+ ), zirconium (Zr 4+ ) and combinations thereof.
  • the preferred metal ions are titanium, chromium, nickel, yttrium, ruthenium and tantalum.
  • the implant dosage for the ions should be in a range of 3 x 10 16 ions/cm 2 to 10 17 ions/cm 2 . Also, it should be noted that during the ion bombardment, the temperature remains below 150°C.
  • the sizes and the mass of the implanted ions have a significant effect on the properties of the implanted material and increased impact energy (fracture toughness) of each diamond type and grain size distribution is obtained.
  • the hardness of a material is analogous of the strength measured by the tensile test.
  • Impact energy which is the energy necessary to fracture a standard test piece under an impact load, is similar analog of toughness.
  • a series of diamond tools were obtained. These tools included a Type 1308 PDC diamond cutters and a Type 2167 TSP diamonds. These tools were taken to Cutting Edge Products, Inc. in San Diego, California, where they were placed in an ion implantation reactor, such as illustrated schematically in Fig. 2, and were subjected to an ion implantation using standard energy for implantation.
  • the reactor had both a titanium and nickel target material and the chamber, after placing the samples therein, was evacuated. The dosage was 10 17 ions/cm 2 .
  • the TSP diamonds have a 13mm diameter and have a diamond structure without cobalt.
  • the thicknesses of these samples were recorded and the impact energy required to break the samples was measured using an Instron Instrument Drop Weight Tester. The impact energy was calculated as the integral of the area below the force versus time curves shown in Fig. 3.
  • the curves 21 and 22 are for samples of two different thicknesses of a TSP diamond which had not been subjected to the ion implantation, while curves 3 and 4 are for those TSP diamonds which had ion implantation with Ni 2+ and Ti 2+ at an implant dosage of 10 17 ions/cm 2 .
  • the curve 21 is for a TSP diamond having a thickness of 1.8mm
  • the curve 22 is for a TSP diamond having a thickness of 2.1mm
  • the curves 23 and 24 are for two TSP diamond samples which were subjected to the same ion implantation and have a thickness of 2.1mm. As illustrated by the curves 23 and 24, while slightly different, have a greater impact energy for the implanted samples, which energy will relate to a greater fracture toughness created by the selection of the ion implantation process.
  • the commercial PDC diamond cutters when subjected to the drop weight test, will show signs of chipping or fracture after being subjected to 10 or less hits from the 17cm drop height.
  • the operator checked the diamond holding fixture for alignment after a total of 15 strikes from the 17cm drop height. The fixture was adjusted to be sure the diamond table was not supported by the fixture, and then 20 more strikes, for a total of 35, from the 17cm drop height were applied.
  • the ion implanted PDC diamond cutter still had no abrasion, chipping or fracture.
  • the durability of the diamonds can be improved by a stress relief which uses microwave heating.
  • the microwave heating causes preferential heating of the trace elements and/or impurities of the diamonds, which appear in most of the manufactured diamonds, and act as dielectrics.
  • Certain diamonds, such as TSP, which are free of cobalt, can be doped with dielectrics, such as silicon, silicon carbide and iron metals.
  • the microwave heating for stress relief is a heating to a temperature below that which would destroy the particular diamond for a period of approximately five minutes.
  • the PDC and PCD diamonds are heated to a temperature of approximately 600 °C at a slow rate, such as 30 °C per minute, and held there for five minutes and then cooled at a slow rate, such as 30 °C per minute.
  • the other diamond-like materials such as TSP, PVD diamonds, CVD diamonds, cubic boron nitride and cubic carbon nitride coatings, are heated to a temperature of approximately 900 °C by the slow rate, such as 30°C per minute, and held for five minutes and then cooled at a slow rate, such as 30°C per minute.
  • the microwave heating causes the dielectric trace elements and impurities to soften or melt to heal micro-cracks. It should be pointed out that the ion implantation does not heal micro-cracks.
  • Microwave-induced stresses are created by microwave heating at a rapid rate, such as 1000°C per minute, to the upper limit for the particular materials, such as around 600 °C for PDC and PCD diamond materials and 900 °C for TSP and other diamond-type materials, including the cubic carbon nitride coating and the cubic boron nitride materials and natural diamonds.
  • a rapid cooling occurs, and this creates stresses which, due to the thermal gradients within the diamond structure, will cause internal flaws and micro-cracks to propagate and rupture and fracture the material.
  • the fractured or ruptured materials which have defects can be discarded. This is particularly useful when receiving a supply of diamond-type materials from a supplier and/or when utilizing used diamond-type materials.
  • microwave heating of these diamonds or diamond-like materials differs from the conventional heating, for example convective, inductive or other conventional heat treating methods. Microwaves preferentially heat only the dielectric trace and minor constituents.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

La présente invention concerne un procédé permettant d'améliorer la durabilité d'un outil de type à diamant, notamment un trépan à diamant. Ce procédé consiste à fournir un outil de type à diamant et à soumettre ses surfaces à un traitement permettant d'augmenter la résistance aux chocs et la ténacité à la rupture. Ce traitement consiste à implanter des ions dans la surface de l'outil de type à diamant.
PCT/US2001/012241 2000-04-14 2001-04-13 Diamants et trepans a diamant a durabilite accrue Ceased WO2001079583A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001255388A AU2001255388A1 (en) 2000-04-14 2001-04-13 Diamonds and diamond cutters having improved durability

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55022200A 2000-04-14 2000-04-14
US09/550,222 2000-04-14

Publications (2)

Publication Number Publication Date
WO2001079583A2 true WO2001079583A2 (fr) 2001-10-25
WO2001079583A3 WO2001079583A3 (fr) 2002-06-06

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AU (1) AU2001255388A1 (fr)
WO (1) WO2001079583A2 (fr)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7134381B2 (en) 2003-08-21 2006-11-14 Nissan Motor Co., Ltd. Refrigerant compressor and friction control process therefor
US7146956B2 (en) 2003-08-08 2006-12-12 Nissan Motor Co., Ltd. Valve train for internal combustion engine
US7228786B2 (en) 2003-06-06 2007-06-12 Nissan Motor Co., Ltd. Engine piston-pin sliding structure
US7255083B2 (en) 2002-10-16 2007-08-14 Nissan Motor Co., Ltd. Sliding structure for automotive engine
US7273655B2 (en) 1999-04-09 2007-09-25 Shojiro Miyake Slidably movable member and method of producing same
US7284525B2 (en) 2003-08-13 2007-10-23 Nissan Motor Co., Ltd. Structure for connecting piston to crankshaft
US7318514B2 (en) 2003-08-22 2008-01-15 Nissan Motor Co., Ltd. Low-friction sliding member in transmission, and transmission oil therefor
US7322749B2 (en) 2002-11-06 2008-01-29 Nissan Motor Co., Ltd. Low-friction sliding mechanism
US7406940B2 (en) 2003-05-23 2008-08-05 Nissan Motor Co., Ltd. Piston for internal combustion engine
US7458585B2 (en) 2003-08-08 2008-12-02 Nissan Motor Co., Ltd. Sliding member and production process thereof
US7500472B2 (en) 2003-04-15 2009-03-10 Nissan Motor Co., Ltd. Fuel injection valve
US7572200B2 (en) 2003-08-13 2009-08-11 Nissan Motor Co., Ltd. Chain drive system
US7771821B2 (en) 2003-08-21 2010-08-10 Nissan Motor Co., Ltd. Low-friction sliding member and low-friction sliding mechanism using same
WO2011151414A2 (fr) 2010-06-03 2011-12-08 Element Six Limited Outils en diamant
US8096205B2 (en) 2003-07-31 2012-01-17 Nissan Motor Co., Ltd. Gear
US8365846B2 (en) 2009-03-27 2013-02-05 Varel International, Ind., L.P. Polycrystalline diamond cutter with high thermal conductivity
US8662209B2 (en) 2009-03-27 2014-03-04 Varel International, Ind., L.P. Backfilled polycrystalline diamond cutter with high thermal conductivity
EP2868780A4 (fr) * 2012-06-29 2016-05-18 Sumitomo Electric Industries Monocristal de diamant et son procédé de fabrication, et outil de diamant monocristallin
WO2017023312A1 (fr) * 2015-08-05 2017-02-09 Halliburton Energy Services, Inc. Diamant polycristallin fritté par frittage flash
CN107107206A (zh) * 2014-10-29 2017-08-29 住友电气工业株式会社 复合金刚石体和复合金刚石工具
CN109112478A (zh) * 2017-06-24 2019-01-01 姜文辉 一种具有保护障碍层包覆的聚晶金刚石复合片及制备方法
US10773303B2 (en) 2015-08-05 2020-09-15 Halliburton Energy Services, Inc. Spark plasma sintered polycrystalline diamond compact
US11253925B2 (en) 2016-05-17 2022-02-22 Element Six (Uk) Limited Diamond tool piece
CN118690449A (zh) * 2024-06-05 2024-09-24 广州市市政工程设计研究总院有限公司 一种水下重锤凿岩工艺参数优选方法
CN120119218A (zh) * 2025-05-09 2025-06-10 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) 一种CVD金刚石表面高热导Ti涂层的制备方法

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Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7273655B2 (en) 1999-04-09 2007-09-25 Shojiro Miyake Slidably movable member and method of producing same
US7255083B2 (en) 2002-10-16 2007-08-14 Nissan Motor Co., Ltd. Sliding structure for automotive engine
US8152377B2 (en) 2002-11-06 2012-04-10 Nissan Motor Co., Ltd. Low-friction sliding mechanism
US7322749B2 (en) 2002-11-06 2008-01-29 Nissan Motor Co., Ltd. Low-friction sliding mechanism
US7500472B2 (en) 2003-04-15 2009-03-10 Nissan Motor Co., Ltd. Fuel injection valve
US7406940B2 (en) 2003-05-23 2008-08-05 Nissan Motor Co., Ltd. Piston for internal combustion engine
US7228786B2 (en) 2003-06-06 2007-06-12 Nissan Motor Co., Ltd. Engine piston-pin sliding structure
US8096205B2 (en) 2003-07-31 2012-01-17 Nissan Motor Co., Ltd. Gear
US7458585B2 (en) 2003-08-08 2008-12-02 Nissan Motor Co., Ltd. Sliding member and production process thereof
US7146956B2 (en) 2003-08-08 2006-12-12 Nissan Motor Co., Ltd. Valve train for internal combustion engine
US7284525B2 (en) 2003-08-13 2007-10-23 Nissan Motor Co., Ltd. Structure for connecting piston to crankshaft
US7572200B2 (en) 2003-08-13 2009-08-11 Nissan Motor Co., Ltd. Chain drive system
US7771821B2 (en) 2003-08-21 2010-08-10 Nissan Motor Co., Ltd. Low-friction sliding member and low-friction sliding mechanism using same
US7134381B2 (en) 2003-08-21 2006-11-14 Nissan Motor Co., Ltd. Refrigerant compressor and friction control process therefor
US7318514B2 (en) 2003-08-22 2008-01-15 Nissan Motor Co., Ltd. Low-friction sliding member in transmission, and transmission oil therefor
US8365846B2 (en) 2009-03-27 2013-02-05 Varel International, Ind., L.P. Polycrystalline diamond cutter with high thermal conductivity
US8662209B2 (en) 2009-03-27 2014-03-04 Varel International, Ind., L.P. Backfilled polycrystalline diamond cutter with high thermal conductivity
WO2011151415A2 (fr) 2010-06-03 2011-12-08 Element Six Limited Outils en diamant
WO2011151416A2 (fr) 2010-06-03 2011-12-08 Element Six Limited Outils en diamant
WO2011151414A2 (fr) 2010-06-03 2011-12-08 Element Six Limited Outils en diamant
JP2013527117A (ja) * 2010-06-03 2013-06-27 エレメント シックス リミテッド ダイヤモンド工具
US8884252B2 (en) 2010-06-03 2014-11-11 Element Six Limited Diamond tools
US8884251B2 (en) 2010-06-03 2014-11-11 Element Six Limited Diamond tools
US8890091B2 (en) 2010-06-03 2014-11-18 Element Six Limited Diamond tools
EP2868780A4 (fr) * 2012-06-29 2016-05-18 Sumitomo Electric Industries Monocristal de diamant et son procédé de fabrication, et outil de diamant monocristallin
US9441312B2 (en) 2012-06-29 2016-09-13 Sumitomo Electric Industries, Ltd. Diamond single crystal, method for producing the same, and single crystal diamond tool
US10280531B2 (en) 2012-06-29 2019-05-07 Sumitomo Electric Industries, Ltd. Diamond single crystal and production method thereof, and single crystal diamond tool
EP3453476A1 (fr) * 2014-10-29 2019-03-13 Sumitomo Electric Industries, Ltd. Corps en diamant composite et outil en diamant composite
US20170320144A1 (en) * 2014-10-29 2017-11-09 Sumitomo Electric Industries, Ltd. Composite diamond body and composite diamond tool
CN107107206A (zh) * 2014-10-29 2017-08-29 住友电气工业株式会社 复合金刚石体和复合金刚石工具
US10639725B2 (en) * 2014-10-29 2020-05-05 Sumitomo Electric Industries, Ltd. Composite diamond body and composite diamond tool
CN107810071A (zh) * 2015-08-05 2018-03-16 哈利伯顿能源服务公司 火花等离子体烧结的聚晶金刚石
WO2017023312A1 (fr) * 2015-08-05 2017-02-09 Halliburton Energy Services, Inc. Diamant polycristallin fritté par frittage flash
US10773303B2 (en) 2015-08-05 2020-09-15 Halliburton Energy Services, Inc. Spark plasma sintered polycrystalline diamond compact
US10843975B2 (en) 2015-08-05 2020-11-24 Halliburton Energy Services, Inc. Spark plasma sintered polycrystalline diamond
US11253925B2 (en) 2016-05-17 2022-02-22 Element Six (Uk) Limited Diamond tool piece
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CN120119218A (zh) * 2025-05-09 2025-06-10 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) 一种CVD金刚石表面高热导Ti涂层的制备方法

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