Luxembourg, Luxembourg
Luxembourg, Luxembourg

Element Six is a member of the De Beers Group of Companies, its majority shareholder. Element Six designs, develops and produces synthetic diamond supermaterials, and operates worldwide with its head office registered in Luxembourg, and primary manufacturing facilities in China, Germany, Ireland, Sweden, South Africa, U.S. and the U.K. Element Six is organized into two primary commercial divisions – Abrasives and Technologies. Element Six advanced engineering materials are used in abrasive applications such as cutting, grinding, drilling, shearing and polishing, while the extreme properties of synthetic diamond beyond hardness are applied in a wide array of industrial and technology applications such as optics, power transmission, water treatment, semi-conductors, sensors and quantum information processing. Wikipedia.

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A composite material and a method of using the composite material. The composite material consists of at least 65 volume per cent cubic boron nitride (cBN) grains (10) dispersed in a binder matrix, the binder matrix comprising a plurality of microstructures (12) bonded to the cBN grains (10) and a plurality of intermediate regions (14) between the cBN grains (10); the microstructures (12) comprising nitride or boron compound of a metal; and the intermediate regions (14) including a silicide phase containing the metal chemically bonded with silicon; in which the content of the silicide phase is 2 to 6 weight per cent of the composite material, and in which the cBN grains (10) have a mean size of 0.2 to 20m. Silicon nitride can further be contained (16). The metal can preferably be Ti, Hf, Ta or Zr.


A microwave plasma reactor for manufacturing synthetic diamond material via chemical vapour deposition, the microwave plasma reactor comprising: a plasma chamber defining a resonant cavity for supporting a primary microwave resonance mode having a primary microwave resonance mode frequency f; a plurality of microwave sources coupled to the plasma chamber for generating and feeding microwaves having a total microwave power into the plasma chamber; a gas flow system for feeding process gases into the plasma chamber and removing them therefrom; and a substrate holder disposed in the plasma chamber and comprising a supporting surface for supporting a substrate on which the synthetic diamond material is to be deposited in use, wherein the plurality of microwave sources are configured to couple at least 30% of the total microwave power into the plasma chamber in the primary microwave resonance mode frequency f, and wherein at least some of the plurality of microwave sources are solid state microwave sources.


A method and granules for coating a body. Each granule comprises silicon (Si), carbon (C), chromium (Cr) and iron group metal selected from iron (Fe), cobalt (Co) and nickel (Ni). The relative quantities of the Si, C and Cr are such that a molten phase comprising the Si, C, Cr and the iron group metal will form at a melting temperature of less than 1,300 degrees Celsius when at least a threshold quantity of the iron group metal is accessible to the Si, C and Cr; but each granule comprising substantially less than the threshold quantity of the iron group metal. A second source of the iron group metal is provided. A combination of the granules and the second source is formed such that at least the threshold quantity of the iron group metal will be accessible to the Si, C and Cr. The granules and the second source are heated to at least the melting temperature to form the molten phase in contact with the body. The heat is then removed to allow the molten phase to solidify and to provide the coated body.


Patent
Element Six | Date: 2017-04-19

An optical element comprising: synthetic diamond material; and an optical surface pattern formed directly in at least one surface of the synthetic diamond material, wherein the optical surface pattern comprises a plurality of projections separated by trenches, the projections spaced apart with a periodicity d, wherein the periodicity d is between 65 and 99% of a zeroeth order diffraction limit above which non zeroeth diffraction orders are observed at an operating wavelength wherein the optical surface pattern has a fill fraction in a range 0.1 to 0.6, the fill fraction defined as [area of projection in one periodic unit]/[area of the periodic unit],and wherein the optical element has an absorption coefficient measured at room temperature of 0.2 cm-1 at a wavelength of 10.6 m.


Patent
Element Six | Date: 2017-05-24

A method of making a super-hard article comprising a super-hard structure (14) bonded to a substrate (18), the super-hard structure comprising a sintered plurality of super-hard grains. The method includes providing raw material powder suitable for sintering the super-hard structure. The raw material powder is combined with organic binder material in a liquid medium to form paste. The content of the raw material powder is more than 60 and less than 85 mass per cent of the paste and the composition of the paste is such that it has a shear rate of at most 25 inverse second (s-1). A substrate assembly is provided, which comprises the substrate, having a formation surface area configured for forming a boundary of the super-hard structure, the substrate comprising a recess coterminous with the formation surface area. The paste is extruded into contact with the formation surface area to provide a paste assembly. The paste assembly is heat treated to remove the binder material and provide a pre-sinter assembly. The pre-sinter assembly is subjected to a pressure and temperature sufficient to sinter the raw material powder and transform it into the super-hard structure bonded to the substrate at a boundary coterminous with the formation surface area. The super-hard material is diamond or cubic boron nitride.


Patent
Element Six | Date: 2017-04-05

A thermal spray assembly (10) for transforming precursor material (60) into a layer of deposited material joined to a substrate body. A plasma torch produces a plasma jet from a plasma nozzle (28) and a feeder mechanism (30) guides the precursor material into the plasma jet in use and is capable of providing a feeder orifice when in an open condition. The feeder mechanism (30) is provided with a distribution chamber configured for guiding moving precursor material azimuthally around the plasma torch, a plurality of deflector structures (38) configured for deflecting the precursor material (60) from the distribution chamber and guiding it into a guide chamber configured for guiding the precursor material (60) to the plasma jet in use.


Patent
Baker Hughes Inc. and Element Six | Date: 2017-03-06

An earth-boring drilling tool comprises a cutting element. The cutting element comprises a substrate, a diamond table, and at least one sensing element formed from a doped diamond material disposed at least partially within the diamond table. A method for determining an at-bit measurement for an earth-boring drill bit comprises receiving an electrical signal generated within a doped diamond material disposed within a diamond table of a cutting element of the earth-boring drill bit, and correlating the electrical signal with at least one parameter during a drilling operation.


Patent
Element Six | Date: 2017-02-27

A tool component comprising a wear part covered at least in part by a connection member, the wear part having a specified hardness and the connection member being a metal or alloy, and the wear part comprising a surface that includes one or more depressions or projections therefrom, and the connection member having been pressed against that surface so that at least the surface of the connection member that faces the wear part surface follows the profile of the wear part, whereby relative movement between the wear part and connection member is substantially prevented. The metal or alloy connection member may be readily attached to a tool body for example by brazing of the like. The wear part may comprise a material that is not readily brazeable, for example a ceramic material or a cermet or a superhard material or a composite of such materials.


Patent
Element Six | Date: 2017-04-05

A thermal spray assembly (10) for transforming precursor material (60) into a layer of deposited material joined to a substrate body. A plasma torch (20) produces a plasma jet from a plasma nozzle (28). A feeder mechanism (30) guides the precursor material (60) into the plasma jet in use and provides a feeder orifice (70) when in an open condition. The feeder mechanism comprises a guide chamber (34) and a moveable guide mechanism (32), and the guide chamber is capable of guiding the precursor material to the feeder orifice, through which the precursor material can move from the guide chamber and enter the plasma jet at a variable mean distance from the plasma nozzle (28) in response to movement of the guide mechanism (32).


A sensor (1, 2, 3, 4, 5, 6, 7, 8) comprising a first diamond substrate (9) with at least one colour centre (15), the sensor (1, 2, 3, 4, 5, 6, 7, 8) further comprising a first piezomagnetic (10) or piezoelectric primary element (11), which primary element (10, 11) is arranged to interact with the colour centre(s) (15) of the first diamond substrate (9).

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