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1. 发明授权

US09352448B2 Superhard structure and method of making same 有权
标题翻译：超硬结构及其制作方法
公开(公告)号：US09352448B2
公开(公告)日：2016-05-31
申请号：US13997787
申请日：2011-12-20
申请人： Moosa Mahomed Adia , Geoffrey John Davies , David Christian Bowes
发明人： Moosa Mahomed Adia , Geoffrey John Davies , David Christian Bowes
IPC分类号： B24D3/06 , B22F7/06 , C22C26/00
CPC分类号： B24D3/06 , B22F7/062 , C22C26/00
摘要： A superhard structure comprises a body of polycrystalline superhard material comprising a first region and a second region. The second region is adjacent an exposed surface of the superhard structure and comprises a diamond material or cubic boron nitride with a density greater than 3.4×103 kilograms per cubic meter when the second region comprises diamond material. The material(s) forming the first and second regions have a difference in coefficient of thermal expansion, the first and second regions being arranged such that this difference induces compression in the second region adjacent the exposed surface. The first/a further region has the highest coefficient of thermal expansion of the polycrystalline body and is separated in part from a peripheral free surface of the body by the second region or one or more further regions formed of a material(s) of a lower coefficient of thermal expansion. The regions comprise a plurality of grains of polycrystalline superhard material. The second region is peripherally discontinuous with a gap therein through which a portion of the region formed of the material of highest coefficient of thermal expansion extends to the free surface of the superhard structure. There is also disclosed a method for making such a structure.
摘要翻译：超硬结构包括多晶超硬材料体，其包括第一区域和第二区域。第二区域与超硬结构的暴露表面相邻，并且当第二区域包括金刚石材料时，其包括密度大于3.4×103千克/立方米的金刚石材料或立方氮化硼。形成第一和第二区域的材料具有热膨胀系数的差异，第一和第二区域被布置成使得该差异在邻近暴露表面的第二区域中引起压缩。第一/另一区域具有最高的多晶体的热膨胀系数，并且通过第二区域或者由下层的材料形成的一个或多个其它区域部分地与本体的周边自由表面分离热膨胀系数。这些区域包括多个多晶超硬材料颗粒。第二区域周向不连续地具有间隙，通过该间隙，由具有最高热膨胀系数的材料形成的区域的一部分延伸到超硬结构的自由表面。还公开了制造这种结构的方法。

2. 发明申请

US20130344309A1 SUPERHARD STRUCTURE AND METHOD OF MAKING SAME 审中-公开
标题翻译：超级结构及其制造方法
公开(公告)号：US20130344309A1
公开(公告)日：2013-12-26
申请号：US13997785
申请日：2011-12-20
申请人： Moosa Mahomed Adia , Geoffrey John Davies , David Christian Bowes
发明人： Moosa Mahomed Adia , Geoffrey John Davies , David Christian Bowes
IPC分类号： C22C26/00
CPC分类号： C22C26/00 , B22F7/062 , B24D18/0009 , C22C2026/007 , E21B10/567 , Y10T428/24942
摘要： A superhard structure comprises a body of polycrystalline superhard material comprising a first region and a second region, the second region being adjacent an exposed surface of the superhard structure, the second region comprising a diamond material or cubic boron nitride, the density of the second region being greater than 3.4×103 kilograms per cubic metre when the second region comprises diamond material. The material(s) forming the first and second regions have a difference in coefficient of thermal expansion, the first and second regions being arranged such that this difference induces compression in the second region adjacent the exposed surface. The fir further region has the highest coefficient of thermal expansion of the polycrystalline body and is separated from a peripheral free surface of the body of polycrystalline superhard material by the second region or one or more further regions formed of a material or materials of a lower coefficient of thermal expansion. The regions comprise a plurality of grains of polycrystalline superhard material. There is also disclosed a method of making such a material.
摘要翻译：超硬结构包括多晶超硬材料体，其包括第一区域和第二区域，第二区域与超硬结构的暴露表面相邻，第二区域包括金刚石材料或立方氮化硼，第二区域的密度当第二区域包括金刚石材料时，其每立方米大于3.4×103千克。形成第一和第二区域的材料具有热膨胀系数的差异，第一和第二区域被布置成使得该差异在邻近暴露表面的第二区域中引起压缩。冷杉进一步的区域具有最高的多晶体的热膨胀系数，并且通过第二区域与多晶超硬材料体的周边自由表面分离，或者由材料或材料的较低系数形成的一个或多个其它区域的热膨胀。这些区域包括多个多晶超硬材料颗粒。还公开了制造这种材料的方法。

3. 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。

4. 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。

5. 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.

6. 发明授权

US08197780B2 Method of producing a boron suboxide material 失效
标题翻译：生产低氧化硼材料的方法
公开(公告)号：US08197780B2
公开(公告)日：2012-06-12
申请号：US13100926
申请日：2011-05-04
申请人： Geoffrey John Davies , Iakovos Sigalas , Mathias Herrmann , Thembinkosi Shabalala
发明人： Geoffrey John Davies , Iakovos Sigalas , Mathias Herrmann , Thembinkosi Shabalala
IPC分类号： C01B35/10 , C01B15/12 , C01B35/12 , B24D3/02 , C09C1/38 , C09K3/14 , B32B9/04 , C04B35/03 , C04B35/00 , C04B35/48 , C04B35/49
CPC分类号： C04B35/01 , C04B35/6265 , C04B35/62813 , C04B35/62884 , C04B35/6303 , C04B35/645 , C04B2235/3217 , C04B2235/3409 , C04B2235/3804 , C04B2235/40 , C04B2235/401 , C04B2235/402 , C04B2235/404 , C04B2235/444 , C04B2235/77 , C04B2235/79 , C04B2235/80 , C04B2235/96
摘要： A method of producing a boron suboxide composite material having improved fracture toughness.
摘要翻译：一种制造具有改善的断裂韧性的低氧化硼复合材料的方法。

7. 发明申请

US20120040188A1 PROCESS FOR COATING DIAMOND WITH REFRACTORY METAL CARBIDE AND METAL 审中-公开
标题翻译：用金属碳化物和金属涂覆金刚石的方法
公开(公告)号：US20120040188A1
公开(公告)日：2012-02-16
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： B32B1/00 , B05D5/00
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.
摘要翻译：本发明涉及将难熔金属碳化物沉积到包含金刚石的主体的表面的一部分上的方法，该方法包括直接粘附到表面的一部分上，该难熔前体材料包括包含氧和至少一种选自以下的金属的至少一种金属：的Ti，V，Cr，Zr，Nb，Mo，Hf，Ta和W; 所述耐火材料前体材料在加热时可在碳的存在下还原以形成至少一种包含金属碳化物或混合金属碳化物的化合物; 并通过加热来还原耐火材料前体材料。本发明还涉及一种包括金刚石的主体，其主体表面的一部分直接粘附在其上，金属碳化物和身体表面的一部分直接粘附在金属材料上，金刚石的含量大于80体积％的身体体积。

8. 发明申请

US20100330357A1 POLYCRYSTALLINE DIAMOND COMPOSITES 有权
标题翻译：多晶金刚石复合材料
公开(公告)号：US20100330357A1
公开(公告)日：2010-12-30
申请号：US12526228
申请日：2008-05-06
申请人： Geoffrey John Davies , Gerrard Peters
发明人： Geoffrey John Davies , Gerrard Peters
IPC分类号： B01J3/06 , C04B35/645 , B32B5/16 , B32B9/00
CPC分类号： B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , C22C26/00 , Y10T428/25
摘要： A method of producing a PCD body includes the step of providing a region of coarser diamond particles between a source of binder phase and a region of fine grained diamond particles having a particle size less than 2 μm. The binder phase is caused to infiltrate the diamond mass through the region of coarser diamond particles under elevated temperature and pressure conditions suitable to produce PCD. The invention further provides for a PCD diamond composite manufactured by the method of the invention wherein the PCD body is substantially free of abnormal diamond growth
摘要翻译：制备PCD体的方法包括在粘结相源和具有小于2μm的粒度的细晶粒金刚石颗粒的区域之间提供较粗的金刚石颗粒区域的步骤。使粘合剂相在适合于生产PCD的高温和高压条件下通过较粗的金刚石颗粒区域渗透金刚石块。本发明进一步提供了通过本发明的方法制造的PCD金刚石复合物，其中PCD体基本上没有异常金刚石生长

9. 发明申请

US20090307987A1 ABRASIVE COMPACTS 审中-公开
标题翻译：磨砂练习
公开(公告)号：US20090307987A1
公开(公告)日：2009-12-17
申请号：US12375320
申请日：2007-07-27
申请人： Geoffrey John Davies , Mosimanegape Stephen Masete
发明人： Geoffrey John Davies , Mosimanegape Stephen Masete
IPC分类号： C09K3/14
CPC分类号： B24D3/10 , B22F2999/00 , C22C26/00 , B22F1/0014
摘要： Abrasive compacts, in particular ultrahard polycrystalline abrasive compacts, are made under high pressure/high temperature conditions and are characterized in that they include a coarser grained fraction of ultrahard particles distributed non-percolatively throughout a finer grained fraction of ultrahard particles, which may be regarded as a finer grained ultrahard particle matrix, in such a way that the individual coarser grains are largely isolated from one another. It therefore performs as a matrix of highly wear resistant finer grained material interspersed with larger grains, offering a structure that has advantageous wear and impact performance over the behaviours of the two components individually or otherwise combined.
摘要翻译：磨料压块，特别是超硬多晶磨料压块，在高压/高温条件下制成，其特征在于，它们包括非超滤颗粒的较粗颗粒分数，其遍布超细颗粒的更细晶粒部分，这可以被认为是作为更细粒度的超硬颗粒基质，使得各个较粗颗粒彼此大部分隔离。因此，它作为散布有较大颗粒的高耐磨性细粒材料的基体，提供具有优于单独或以其他方式组合的两种组分的行为的有利的磨损和冲击性能的结构。

10. 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。

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