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1. 发明申请

US20090127136A1 ELECTRODE 审中-公开
标题翻译：电极
公开(公告)号：US20090127136A1
公开(公告)日：2009-05-21
申请号：US12332080
申请日：2008-12-10
申请人： Geoffrey John Davies , Raymond Albert Chapman , Anine Hester Ras , Kaveshini Naidoo
发明人： Geoffrey John Davies , Raymond Albert Chapman , Anine Hester Ras , Kaveshini Naidoo
IPC分类号： G01N27/26
CPC分类号： C23C16/56 , C12Q1/001 , G01N27/308 , G01N33/5438 , G01N33/78
摘要： A diamond electrode comprises a polycrystalline mass of diamond particles bonded together and has a porous surface, or an at least partly porous surface. The porous surface of the electrode is typically created by leaching non-diamond material, such as a second phase of a metallic material, at least in part, from the bonded polycrystalline mass of diamond particles, either before or after shaping it into an electrode. Alternatively, or additionally, the porous surface of the electrode may be created by subjecting a mass of diamond particles to conditions of elevated temperature and pressure to self-bond the particles together in the absence of a second phase.
摘要翻译：金刚石电极包括结合在一起的金刚石颗粒的多晶块，并且具有多孔表面或至少部分多孔的表面。电极的多孔表面通常通过在将其成形为电极之前或之后，将金刚石材料例如金属材料的第二相至少部分地从结合的多晶金刚石颗粒浸出而形成。或者或另外，电极的多孔表面可以通过使金刚石颗粒的质量达到升高的温度和压力的条件来产生，以在没有第二相的情况下将颗粒自粘结在一起。

2. 发明授权

US06676750B1 Growth of diamond clusters 失效
标题翻译：钻石簇的生长
公开(公告)号：US06676750B1
公开(公告)日：2004-01-13
申请号：US10089921
申请日：2002-08-01
申请人： Geoffrey John Davies , Raymond Albert Chapman , Lesley Kay Hedges , Aulette Stewart
发明人： Geoffrey John Davies , Raymond Albert Chapman , Lesley Kay Hedges , Aulette Stewart
IPC分类号： C30B2502
CPC分类号： B01J3/062 , B01J23/74 , B01J2203/062 , B01J2203/0655 , B01J2203/068 , B01J2203/0685 , C01B32/25
摘要： A diamond cluster includes a core and an overgrown region containing a plurality of diamond crystallites extending outwards from the core, the majority of the crystallites having a cross-sectional area which increases as the distance of the crystallite from the core increases. Generally, at least 80% of the crystallites have a cross-sectional area which increases as the distance of the crystallite from the core increases. Furthermore, a method of producing a plurality of the diamond clusters includes the stops of providing a source of carbon, providing a plurality of growth center particles, each comprising a bonded mass of constituent particles, producing a reaction mass by bringing the carbon source and growth center particles into contact with a solvent/catalyst, subjecting the reaction mass to conditions of elevated temperature and pressure suitable for crystal growth, and recovering a plurality of diamond clusters from the reaction mass.
摘要翻译：金刚石簇包括芯部和含有多个从芯部向外延伸的金刚石微晶的长满的区域，大部分微晶具有随着微晶与芯的距离增加而增加的横截面面积。通常，至少80％的微晶具有随微晶与芯的距离增加而增加的横截面面积。此外，制造多个金刚石簇的方法包括提供碳源的停止点，提供多个生长中心颗粒，每个生长中心颗粒包含结合质量的构成颗粒，通过使碳源和生长产生反应块中心颗粒与溶剂/催化剂接触，使反应物质经受适于晶体生长的升高温度和压力的条件，并从反应物质中回收多个金刚石簇。

3. 发明申请

US20090000208A1 Composite Material 审中-公开
标题翻译：复合材料
公开(公告)号：US20090000208A1
公开(公告)日：2009-01-01
申请号：US12206113
申请日：2008-09-08
申请人： Iakovos Sigalas , Geoffrey John Davies , Mosimanegape Stephen Masete , Raymond Albert Chapman
发明人： Iakovos Sigalas , Geoffrey John Davies , Mosimanegape Stephen Masete , Raymond Albert Chapman
IPC分类号： C09K3/14 , B24D3/28
CPC分类号： E21B10/567 , B01J3/062 , B01J3/065 , B01J2203/063 , B01J2203/066
摘要： A composite material comprises a plurality of cores of material selected from the group comprising carbides, nitrides, carbonitrides, cemented carbides, cemented nitrides, cemented carbonitrides and mixtures thereof, dispersed in a matrix. The matrix comprises the components for making an ultra-hard material, such as diamond or cBN abrasive particles, and a suitable binder. The ultra-hard material is polycrystalline in nature and is typically PCD or PcBN. The cores are typically provided as individual particles or in the form of granules. The granules may be further coated with a second coating, which may be a similar material to that of the cores or of an ultra-hard material of a different grade to that of the first coating. The composite material typically takes on a honeycomb structure of a hard material and cores within the pores of the honeycomb structure bonded to the honeycomb structure. The pores of the honeycomb structure may be ordered or random. A method of producing the composite material and a method of producing a tool component incorporating such a material are also provided.
摘要翻译：复合材料包括分散在基质中的多种选自碳化物，氮化物，碳氮化物，硬质合金，粘结氮化物，粘结碳氮化物及其混合物的材料芯。基质包括用于制造超硬材料的组分，例如金刚石或cBN研磨剂颗粒，以及合适的粘合剂。超硬材料本质上是多晶的，通常是PCD或PcBN。核心通常提供为单个颗粒或颗粒形式。颗粒可以进一步涂覆第二涂层，其可以是与芯的类似材料或与第一涂层不同等级的超硬材料的材料。复合材料通常在与蜂窝结构体结合的蜂窝结构体的孔内具有硬质材料的蜂窝结构和芯。蜂窝结构的孔可以是有序的或随机的。还提供了一种生产该复合材料的方法和一种制造包含这种材料的工具部件的方法。

4. 发明授权

US06497853B1 Diamond growth 失效
标题翻译：钻石增长
公开(公告)号：US06497853B1
公开(公告)日：2002-12-24
申请号：US09403017
申请日：1999-11-23
申请人： Geoffrey John Davies , Raymond Albert Chapman , Aulette Stewart , Lesley Kay Hedges
发明人： Geoffrey John Davies , Raymond Albert Chapman , Aulette Stewart , Lesley Kay Hedges
IPC分类号： C01B3106
CPC分类号： B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/068
摘要： Diamond crystals may be grown by providing a source of diamond crystals, providing a plurality of growth centers defined by diamond crystals, mixing the source and growth center diamond crystals with a solvent/catalyst in particulate form to form a reaction mass, subjecting the reaction mass to conditions of elevated temperature and pressure suitable for crystal growth, and recovering the diamond crystals. The necessary supersaturation of carbon is achieved in the solvent/catalyst, at least in part, and preferably predominantly, by a selection of the particle size difference between the source crystal and the growth centers. The mass of diamond crystals produced by this method has a high concentration of twinned diamonds.
摘要翻译：金刚石晶体可以通过提供金刚石晶体源生长，提供由金刚石晶体限定的多个生长中心，将源和生长中心金刚石晶体与颗粒形式的溶剂/催化剂混合以形成反应物质，使反应物质适用于晶体生长的升高的温度和压力的条件，以及回收金刚石晶体。在溶剂/催化剂中，至少部分地，优选主要通过选择源晶体和生长中心之间的粒径差异来实现碳的必要过饱和。通过该方法生产的金刚石晶体的质量具有高浓度的双晶钻石。

5. 发明授权

US06860914B2 Abrasive product 失效
标题翻译：磨料制品
公开(公告)号：US06860914B2
公开(公告)日：2005-03-01
申请号：US10333915
申请日：2001-07-31
申请人： Geoffrey John Davies , Raymond Albert Chapman
发明人： Geoffrey John Davies , Raymond Albert Chapman
IPC分类号： B24D3/00 , C09K3/14
CPC分类号： C09K3/1436 , B24D3/001
摘要： An abrasive product which comprises a polycrystalline mass of self-bonded abrasive particles of irregular shape, the product being substantially free of a second phase and containing substantial plastic deformation of the abrasive particles. The abrasive particles are preferably diamond or cubic boron nitride and the plastic deformation of the particles is preferably at least 0.3 percent. The abrasive product may be made by subjecting a mass of the particles to elevated temperature and pressure conditions.
摘要翻译：一种研磨产品，其包含具有不规则形状的自粘结磨料颗粒的多晶团块，该产品基本上不含第二相并且包含磨料颗粒的大量塑性变形。研磨颗粒优选为金刚石或立方氮化硼，并且颗粒的塑性变形优选为至少0.3％。研磨产品可以通过使大量颗粒经受高温和高压条件而制成。

6. 发明授权

US06576211B1 Crystal-containing material 失效
标题翻译：含晶体材料
公开(公告)号：US06576211B1
公开(公告)日：2003-06-10
申请号：US09555528
申请日：2000-08-04
申请人： Geoffrey John Davies , Raymond Albert Chapman , Aulette Stewart , Lesley Kay Hedges , Moosa Mahomed Adia
发明人： Geoffrey John Davies , Raymond Albert Chapman , Aulette Stewart , Lesley Kay Hedges , Moosa Mahomed Adia
IPC分类号： C01B3106
CPC分类号： B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685
摘要： A method of making a bonded, coherent material comprising a mass of crystals, preferably diamond crystals, in a matrix is provided. The steps include providing a source of the crystals of the type to be grown and which are substantially free of macroscopically faceted surfaces, producing a reaction mass by bringing the source crystals into contact with a suitable solvent/catalyst, subjecting the reaction mass to conditions of elevated temperature and pressure suitable for crystal growth in the reaction zone of a high temperature/high pressure apparatus to produce the material and removing the material from the reaction zone, the conditions of crystal growth being chosen such that the source crystals are converted to crystals having developed macroscopic facets of low Miller index. Preferably the conditions of elevated temperature and pressure used are such that the Wulff effect dominates.
摘要翻译：提供了一种制备包含矩阵中的大量晶体，优选金刚石晶体的粘结的粘结材料的方法。这些步骤包括提供待生长的晶体的源，并且基本上没有宏观面刻面，通过使源晶体与合适的溶剂/催化剂接触而产生反应物质，使反应物料经受在高温/高压装置的反应区中适合于晶体生长的升高的温度和压力以产生材料并从反应区除去材料，选择晶体生长条件使得源晶体转变为具有发展低米勒指数的宏观面。优选地，使用的升高的温度和压力的条件使得Wulff效应占主导地位。

7. 发明授权

US06984448B1 Cubic boron nitride clusters 有权
标题翻译：立方氮化硼簇
公开(公告)号：US06984448B1
公开(公告)日：2006-01-10
申请号：US10129959
申请日：2000-11-17
申请人： Geoffrey John Davies , Raymond Albert Chapman , Lesley Kay Hedges , Aulette Stewart , Bronwyn Annette Roberts
发明人： Geoffrey John Davies , Raymond Albert Chapman , Lesley Kay Hedges , Aulette Stewart , Bronwyn Annette Roberts
IPC分类号： C30B23/00 , B32B18/00 , C01B21/064
CPC分类号： C01B21/064 , B01J3/062 , B01J2203/0645 , B01J2203/066 , B01J2203/068 , B01J2203/0685 , C01P2004/03 , C01P2004/45 , C01P2004/61 , C04B35/5831 , Y10T428/2982
摘要： A cubic boron nitride cluster comprises a core (10) and an overgrown region, the overgrown region containing a plurality of cubic boron nitride crystallites (12) extending outwards from the core (10). The majority of the cubic boron nitride crystallites (12) have a cross-sectional area which increases as the distance from the core (10) increases. A method of producing cubic boron nitride clusters is also provided.
摘要翻译：立方氮化硼簇包括芯（10）和杂草长的区域，所述杂草生长区域包含从芯（10）向外延伸的多个立方氮化硼微晶（12）。大部分立方氮化硼微晶（12）具有随着与芯（10）的距离增加而增加的横截面面积。还提供了一种生产立方氮化硼簇的方法。

8. 发明授权

US06835365B1 Crystal growth 有权
标题翻译：晶体生长
公开(公告)号：US06835365B1
公开(公告)日：2004-12-28
申请号：US09555518
申请日：2000-08-23
申请人： Geoffrey John Davies , Raymond Albert Chapman , Aulette Stewart , Lesley Kay Hedges
发明人： Geoffrey John Davies , Raymond Albert Chapman , Aulette Stewart , Lesley Kay Hedges
IPC分类号： C01B3106
CPC分类号： B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/068
摘要： The invention provides a mass of crystals, particularly diamond crystals, having a size of less than 100 microns and in which mass the majority of the crystals are faceted single crystals. The invention further provides a method of producing such a mass of crystals which utilizes crystal growth under elevated temperature and pressure conditions, the supersaturation driving force necessary for crystal growth being dependent, at least in part, on the difference in surface free energy between low Miller index surfaces and high Miller index surfaces of the crystals. Preferably, the method is carried out under conditions where the Wulff effect dominates.
摘要翻译：本发明提供了一种晶体，特别是具有小于100微米尺寸的金刚石晶体，并且其中大部分晶体是刻面单晶。本发明进一步提供了一种制造这种在升高的温度和压力条件下使用晶体生长的晶体块的方法，晶体生长所需的过饱和驱动力至少部分地取决于低米勒之间的表面自由能的差异指数表面和晶体的高米勒指数表面。优选地，该方法在Wulff效应占优势的条件下进行。

9. 发明授权

US06270548B1 Sintering process for diamond and diamond growth 失效
标题翻译：钻石和钻石生长的烧结过程
公开(公告)号：US06270548B1
公开(公告)日：2001-08-07
申请号：US09403009
申请日：1999-11-23
申请人： James Wilbert Campbell , Moosa Mahomed Adia , Geoffrey John Davies , Raymond Albert Chapman , Klaus Tank , Aulette Stewart , Lesley Kay Hedges
发明人： James Wilbert Campbell , Moosa Mahomed Adia , Geoffrey John Davies , Raymond Albert Chapman , Klaus Tank , Aulette Stewart , Lesley Kay Hedges
IPC分类号： C22C2600
CPC分类号： B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , Y10T428/30
摘要： A method of making a bonded, coherent material comprising a mass of diamond crystals in a matrix, which optionally contains another phase. The method includes the steps of providing a source of diamond crystals, providing a plurality of diamond centers defined by diamond crystals, producing a reaction mass by bringing the source and growth centers into contact with a solvent/catalyst, subjecting the reaction mass to conditions of elevated temperature and pressure suitable for crystal growth in the reaction zone of a high temperature/high pressure apparatus to produce the material, and removing the material from the reaction zone. The method is characterized by providing the necessary supersaturation of carbon in the solvent/catalyst, at least in part and preferably predominantly, by a selection of particle size difference between the source crystal and the growth centers. The mass of diamond crystals in the matrix of the bonded, coherent material of the invention has a high concentration of twinned diamonds.
摘要翻译：制造粘结的粘合材料的方法，其包括在矩阵中的大量金刚石晶体，其任选地包含另一相。该方法包括以下步骤：提供金刚石晶体源，提供由金刚石晶体限定的多个金刚石中心，通过使源和生长中心与溶剂/催化剂接触产生反应物质，使反应物料经受在高温/高压装置的反应区中适合于晶体生长的升高的温度和压力以产生材料，以及从反应区中除去材料。该方法的特征在于在溶剂/催化剂中至少部分优选地通过选择源晶体和生长中心之间的粒度差异提供必要的过饱和碳。本发明粘结的粘结材料的基质中的金刚石晶体的质量具有高浓度的双晶金刚石。

10. 发明授权

US09611412B2 Process for coating diamond with refractory metal carbide and metal 有权
$Process for coating diamond with refractory metal carbide and metal$
公开(公告)号：US09611412B2
公开(公告)日：2017-04-04
申请号：US13201191
申请日：2010-02-11
申请人： Geoffrey John Davies , Johannes Lodewikus Myburgh
发明人： Geoffrey John Davies , Johannes Lodewikus Myburgh
IPC分类号： B32B9/00 , C09K3/14 , B22F1/02 , C04B35/628 , C23C18/12
CPC分类号： C09K3/1436 , B22F1/025 , B22F2998/00 , B22F2999/00 , C04B35/62818 , C04B35/62821 , C04B35/62831 , C04B35/62886 , C04B35/62892 , C04B2235/427 , C04B2235/441 , C04B2235/5436 , C23C18/1204 , C23C18/1245 , C23C18/1254 , Y10T428/2993 , B22F9/20 , C22C26/00
摘要： The invention relates to method of depositing refractory metal carbide onto part of a surface of a body comprising diamond, the method including adhering directly onto part of the surface a refractory precursor material comprising a compound including oxygen and at least one metal selected from the group consisting of Ti, V, Cr, Zr, Nb, Mo, Hf, Ta and W; the refractory precursor material being reducible in the presence of carbon on the application of heat to form at least one compound comprising metal carbide or mixed metal carbide; and reducing the refractory precursor material by the application of heat. The invention further relates to a body comprising diamond, part of the surface of the body having directly adhered thereto a metal carbide and part of the surface of the body having directly adhered thereto a metallic material and the content of diamond being greater than 80 volume percent of a volume of the body.

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