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1. 发明授权

EP1237647B1 CUBIC BORON NITRIDE CLUSTERS 有权
标题翻译： CLUSTER立方氮化硼
公开(公告)号：EP1237647B1
公开(公告)日：2004-02-25
申请号：EP00973163.9
申请日：2000-11-17
申请人： ELEMENT SIX (PTY) LTD
发明人： DAVIES, Geoffrey, John , CHAPMAN, Raymond, Albert , HEDGES, Lesley, Kay , STEWART, Aulette , ROBERTS, Bronwyn, Annette
IPC分类号： B01J3/06 , C01B21/064 , C04B35/5831 , C30B29/38 , C30B29/40
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.

2. 发明公开

EP1331990A2 A METHOD OF PRODUCING ULTRA-HARD ABRASIVE PARTICLES 有权
标题翻译：用于生产超硬磨料
公开(公告)号：EP1331990A2
公开(公告)日：2003-08-06
申请号：EP01980808.8
申请日：2001-11-06
申请人： Element Six (PTY) Ltd
发明人： FRIES, Robert , SIGALAS, Iacovos , NEBELUNG, Manfred , DAVIES, Geoffrey, John
IPC分类号： B01J3/06
CPC分类号： C09K3/1436 , B01J3/062 , B01J2203/061 , B01J2203/062 , B01J2203/0645 , B01J2203/0655 , B01J2203/066 , B01J2203/068 , C01B32/25
摘要： A method of producing a plurality of discrete ultra-hard abrasive particles includes the steps of providing a plurality of granules, each comprising at least one ultra-hard abrasive particle, a precursor for the abrasive particle and a solvent/catalyst for the abrasive particle or precursor of such a solvent/catalyst, placing the granules with a separating medium between adjacent granules in the reaction zone of a high pressure/high temperature apparatus, subjecting the contents of the reaction zone to elevated temperature and pressure conditions at which the ultra-hard abrasive particle is crystallographically stable, recovering thus treated material from the reaction zone and removing the separating medium in the treated material to produce a plurality of discrete abrasive particles.

3. 发明授权

EP1331990B1 A METHOD OF PRODUCING ULTRA-HARD ABRASIVE PARTICLES 有权
标题翻译：用于生产超硬磨料
公开(公告)号：EP1331990B1
公开(公告)日：2007-04-11
申请号：EP01980808.8
申请日：2001-11-06
申请人： ELEMENT SIX (PTY) LTD
发明人： FRIES, Robert , SIGALAS, Iacovos , NEBELUNG, Manfred , DAVIES, Geoffrey, John
IPC分类号： B01J3/06
CPC分类号： C09K3/1436 , B01J3/062 , B01J2203/061 , B01J2203/062 , B01J2203/0645 , B01J2203/0655 , B01J2203/066 , B01J2203/068 , C01B32/25
摘要： A method of producing a plurality of discrete ultra-hard abrasive particles includes the steps of providing a plurality of granules, each comprising at least one ultra-hard abrasive particle, a precursor for the abrasive particle and a solvent/catalyst for the abrasive particle or precursor of such a solvent/catalyst, placing the granules with a separating medium between adjacent granules in the reaction zone of a high pressure/high temperature apparatus, subjecting the contents of the reaction zone to elevated temperature and pressure conditions at which the ultra-hard abrasive particle is crystallographically stable, recovering thus treated material from the reaction zone and removing the separating medium in the treated material to produce a plurality of discrete abrasive particles.

4. 发明公开

EP1581662A1 COMPOSITE MATERIAL 有权
标题翻译：的复合材料的制造方法
公开(公告)号：EP1581662A1
公开(公告)日：2005-10-05
申请号：EP03769718.2
申请日：2003-10-29
申请人： ELEMENT SIX (PTY) LTD
发明人： SIGALAS, Iakovos , DAVIES, Geoffrey, John , MASETE, Mosimanegape, Stephen,190 Leopard Rock , CHAPMAN, Raymond, Albert
IPC分类号： C22C26/00 , B22F7/06 , B01J3/06 , B24D3/06 , E21B10/56
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.

5. 发明授权

EP1218095B1 GROWTH OF DIAMOND CLUSTERS 有权
标题翻译：生长金刚石原子团簇
公开(公告)号：EP1218095B1
公开(公告)日：2003-09-03
申请号：EP00964555.7
申请日：2000-10-04
申请人： ELEMENT SIX (PTY) LTD
发明人： DAVIES, Geoffrey, John , CHAPMAN, Raymond, Albert , HEDGES, Lesley, Kay , STEWART, Aulette
IPC分类号： B01J3/06 , C01B31/06 , C30B29/04
CPC分类号： B01J3/062 , B01J23/74 , B01J2203/062 , B01J2203/0655 , B01J2203/068 , B01J2203/0685 , C01B32/25
摘要： A diamond cluster comprises a core (14) and an overgrown region, the overgrown region containing a plurality of diamond crystallites (16) extending outwards from the core (14), the majority of the diamond crystallites (16) having a cross-sectional area which increases as the distance from the core increases. A method of producing diamond clusters is also provided.

6. 发明授权

EP1483428B1 DIAMOND ELECTRODE 有权
标题翻译：金刚石电极
公开(公告)号：EP1483428B1
公开(公告)日：2007-10-17
申请号：EP03737390.9
申请日：2003-01-13
申请人： ELEMENT SIX (PTY) LTD
发明人： DAVIES, Geoffrey, John , CHAPMAN, Raymond, Albert , RAS, Anine, Hester , NAIDOO, Kaveshini
IPC分类号： C23C16/27 , C23C16/56 , G01N33/543 , G01N27/30
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.

7. 发明授权

EP1037704B2 CRYSTAL GROWTH 有权
标题翻译： KRISTALLWACHSTUM
公开(公告)号：EP1037704B2
公开(公告)日：2006-10-18
申请号：EP98959033.6
申请日：1998-12-10
申请人： ELEMENT SIX (PTY) LTD
发明人： DAVIES, Geoffrey, John , CHAPMAN, Raymond, Albert , STEWART, Aulette , HEDGES, Lesley, Kay
IPC分类号： B01J3/06
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 utilises 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.

8. 发明授权

EP1581662B1 Process of production of composite material 有权
标题翻译：的复合材料的制造方法
公开(公告)号：EP1581662B1
公开(公告)日：2007-03-07
申请号：EP03769718.2
申请日：2003-10-29
申请人： ELEMENT SIX (PTY) LTD
发明人： SIGALAS, Iakovos , DAVIES, Geoffrey, John , MASETE, Mosimanegape, Stephen, 190 Leopard Rock , CHAPMAN, Raymond, Albert
IPC分类号： C22C26/00 , B22F7/06 , B01J3/06 , B24D3/06 , E21B10/56
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.

9. 发明公开

EP1606489A1 TOOL INSERT 审中-公开
标题翻译：工具插入
公开(公告)号：EP1606489A1
公开(公告)日：2005-12-21
申请号：EP04720105.8
申请日：2004-03-12
申请人： ELEMENT SIX (PTY) LTD
发明人： ROBERTS, Bronwyn, Annette , DAVIES, Geoffrey, John , ACHILLES, Roy, Derrick
IPC分类号： E21B10/56
CPC分类号： E21B10/567
摘要： A tool insert comprises a working layer of ultra-hard abrasive, particularly PCD, bonded to a substrate along an interface. The working layer presents a working surface and a periphery around the working surface which provides a cutting edge for the insert. The working layer of ultra-hard abrasive has a first region extending into the layer from the working surface, and a second region in contact with the first region, the wear resistance of the first region being less than that of the second region. The wear resistance of the first region is between 50% and 95% of that of the second region, preferably between 60% and 90%, most preferably between 70% and 89%.
摘要翻译：工具插入件包括沿着界面结合到基底的超硬磨料（特别是PCD）的工作层。工作层具有工作表面和围绕工作表面的周边，该工作表面为插入物提供切割边缘。超硬磨料的工作层具有从工作表面延伸到层中的第一区域和与第一区域接触的第二区域，第一区域的耐磨性小于第二区域的耐磨性。第一区域的耐磨性在第二区域的耐磨性的50％至95％之间，优选在60％至90％之间，最优选在70％至89％之间。

10. 发明公开

EP1483428A1 DIAMOND ELECTRODE 有权
标题翻译：金刚石电极
公开(公告)号：EP1483428A1
公开(公告)日：2004-12-08
申请号：EP03737390.9
申请日：2003-01-13
申请人： Element Six (PTY) Ltd
发明人： DAVIES, Geoffrey, John , CHAPMAN, Raymond, Albert , RAS, Anine, Hester , NAIDOO, Kaveshini
IPC分类号： C23C16/27 , C23C16/56 , G01N33/543 , G01N27/30
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.

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