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公开(公告)号:EP0354775A3
公开(公告)日:1991-03-27
申请号:EP89308081.2
申请日:1989-08-09
发明人: Burns, Robert Charles , Tolkowsky, Gabriel Shraga , Cronselaar, Gerrit Jan Lucas , Phaal, Cornelius
摘要: A diamond scaife which comprises an iron-based working surface (12) having a bonding paste of an organic binder uniformly spread across it, the paste containing a plurality of particles (14) of single and polycrystalline diamond which are partially embedded in the iron-based working surface (12).
摘要翻译: 一种金刚石磨料,它包括一个铁基工作表面(12),该工作表面具有均匀分散在其上的有机粘合剂的粘合糊,该糊含有多个部分嵌入在铁基工作表面中的单一和多晶金刚石颗粒(14) 基于工作表面(12)。
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公开(公告)号:EP0384667A1
公开(公告)日:1990-08-29
申请号:EP90301708.5
申请日:1990-02-16
发明人: Prins, Johan Frans
摘要: A diamond film is grown on a substrate by providing a non-diamond substrate which has a face-centred cubic (fcc) crystal structure and small crystal lattice mismatch with the lattice of diamond, implanting carbon atoms into the crystal lattice of the substrate and causing the implanted carbon atoms to diffuse out of the substrate and grow epitaxially on the surface of the substrate. The preferred substrate is an fcc metal such as copper, nickel, fcc iron, fcc cobalt or fcc chromium.
摘要翻译: 通过提供具有面心立方(fcc)晶体结构和与金刚石晶格的小晶格失配的非金刚石衬底,在衬底上生长金刚石膜,将碳原子注入到衬底的晶格中并引起 植入的碳原子扩散到衬底外并在衬底的表面上外延生长。 优选的基材是fcc金属,例如铜,镍,铁,铁,钴或铬的铬。
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公开(公告)号:EP0381517A2
公开(公告)日:1990-08-08
申请号:EP90301112.0
申请日:1990-02-02
发明人: JONES, BARBARA LYNN
IPC分类号: G01T1/26
摘要: A composite radiation detection and indicating device comprises first, third and fifth layers (10,12,14) of a transparent conductive material, a second layer (16) of semiconductive diamond between the first and third layers, and a fourth layer (18) of liquid crystal material between the third and fifth layers. The layers are sandwiched together so that a diodic structure (20) having a radiation-dependent charge storage characteristic is defined by the first, second and third layers, and a liquid crystal display element (22) is defined by the third, fourth and fifth layers. The invention extends to a radiation detector including the composite device, together with an oscillator (24) for applying a charge to the diodic structure, and a sensor (T2) for monitoring the decay of the stored charge. A voltage is applied to the liquid crystal display element (22) to cause it to change state when the charge stored by the diodic structure decays below a predetermined limit.
摘要翻译: 复合辐射检测和指示装置包括透明导电材料的第一,第三和第五层(10,12,14),第一和第三层之间的半导体金刚石的第二层(16)和第四层(18) 在第三层和第五层之间的液晶材料。 这些层被夹在一起,使得具有辐射依赖电荷存储特性的二极体结构(20)由第一,第二和第三层限定,并且液晶显示元件(22)由第三,第四和第五 层。 本发明延伸到包括复合装置的辐射检测器以及用于向二极体结构施加电荷的振荡器(24)和用于监测所存储的电荷的衰减的传感器(T2)。 当由二极体结构存储的电荷衰减到预定极限以下时,向液晶显示元件(22)施加电压使其变化。
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公开(公告)号:EP0368654A3
公开(公告)日:1990-06-13
申请号:EP89311592.3
申请日:1989-11-09
IPC分类号: B23K26/00
CPC分类号: B23K26/40 , B23K2203/172 , B23K2203/30 , B23K2203/36 , B23K2203/50
摘要: A layer of material is removed from a surface (14) of a bonded abrasive product (10) by directing a laser beam (18) at the surface (14), causing the laser beam (18) to traverse the surface to damage the surface (14) to a desired depth and removing the damaged material remaining on the surface (14), for example by lapping. The bonded abrasive product (10) is particularly a diamond compact.
摘要翻译: 通过将激光束(18)引导在表面(14)处,使得激光束(18)穿过表面以损坏表面,从粘结磨料产品(10)的表面(14)上去除一层材料 (14)延伸到期望的深度并且例如通过研磨去除残留在表面(14)上的损坏的材料。 粘合磨料产品(10)特别是金刚石致密体。
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公开(公告)号:EP0358526A2
公开(公告)日:1990-03-14
申请号:EP89309139.7
申请日:1989-09-08
CPC分类号: E21B10/5673 , B24D18/00 , B24D99/00 , B28D1/188 , Y10S76/12 , Y10T407/26
摘要: An abrasive compact is provided which has a plurality of recesses which may take the form of holes (26) or grooves (20) formed in a major surface (10) thereof. The recesses contain no solid material and serve as crack arrester formations.
摘要翻译: 提供了一种研磨压块,其具有多个可形成形成在其主表面(10)中的孔(26)或凹槽(20)形式的凹槽。 这些凹槽不含固体材料并用作裂纹避雷器结构。
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公开(公告)号:EP0357380A2
公开(公告)日:1990-03-07
申请号:EP89308731.2
申请日:1989-08-30
发明人: Burnand, Richard Patrick , Chapman, Raymond Albert , Martell, Trevor John , Parsons, Stephen Anthony
CPC分类号: E21B10/5735 , B24D18/0009
摘要: The invention provides a method of making an abrasive product which comprises a layer of bonded ultra-hard abrasive particles bonded to a substrate. The abrasive product is typically a diamond or cubic boron nitride composite compact. The method includes the steps of:
(a) providing a substrate (10) which has a surface (14) to which the layer of bonded ultra-hard abrasive particles is to be bonded;
(b) providing a slurry of the components, in particulate form, necessary to make the layer of bonded ultra-hard abrasive particles in a liquid medium adapted to flow and to set to a green state under predetermined conditions;
(c) applying a layer (18) of the slurry to the surface (14) of the substrate (10);
(d) applying the predetermined conditions during step (c) or immediately thereafter to cause the liquid medium to set to a green state;
(e) contacting the green state layer (18) with a complemental surface (22) provided on a pressure pad (20);
(f) removing substantially all the liquid medium from the green state layer (18);
(g) placing the substrate/pressure pad combination in the reaction zone of a high temperature/high pressure apparatus; and
(h) applying conditions of elevated temperature and pressure to the combination to convert the green state layer (18) into a layer of bonded ultra-hard abrasive particles which is bonded to the substrate (10).摘要翻译: 本发明提供一种制造研磨产品的方法,该方法包括粘合到基底上的粘结的超硬磨料颗粒层。 研磨产品通常是金刚石或立方氮化硼复合材料。 该方法包括以下步骤:(a)提供具有表面(14)的基底(10),所述结合的超硬磨料颗粒层将被粘合到该表面上; (b)提供颗粒形式的组分的浆料,以使粘合的超硬磨料颗粒层适于流动并在预定条件下设定为绿色状态的液体介质中; (c)将所述浆料的层(18)施加到所述基底(10)的表面(14)上; (d)在步骤(c)期间施加预定条件或立即施加以使液体介质置于绿色状态; (e)使生态层(18)与设置在压力垫(20)上的互补表面(22)接触; (f)从绿色状态层(18)基本上去除所有的液体介质; (g)将基板/压力垫组合放置在高温/高压装置的反应区中; 和(h)将高温和高压的条件施加到所述组合以将所述生坯状态层(18)转化成结合到所述基板(10)的结合的超硬磨料颗粒层。
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公开(公告)号:EP0352093A2
公开(公告)日:1990-01-24
申请号:EP89307317.1
申请日:1989-07-19
IPC分类号: B28D5/00
摘要: An ultrahard stone, such as a diamond gem stone, is cut or kerfed by moving the cutting edge of a diamond compact relative to and in contact with the stone. The diamond compact may be in the form of a disc with with a cutting edge thickness of 0.5 to 1 mm. Preferably, the diamond compact is thermally stable at 1200°C in an inert or non-oxidising atmosphere.
摘要翻译: 通过相对于石头相对并与其接触的方式移动金刚石块的切割边缘,例如钻石宝石等超硬石头被切割或切割。 金刚石致密体可以是具有0.5至1mm的切削刃厚度的圆盘形式。 优选地,金刚石致密体在1200℃下在惰性或非氧化性气氛中是热稳定的。
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公开(公告)号:EP0314458A1
公开(公告)日:1989-05-03
申请号:EP88310065.3
申请日:1988-10-26
IPC分类号: G01T1/26
CPC分类号: G01T1/26
摘要: The invention provides apparatus for measuring nuclear radiation. The apparatus includes a probe (10) which comprises a synthetic diamond (12) and a FET pre-amplifier (TR1, TR2). A DC bias voltage is applied across the diamond and the pre-amplifier amplifies pulse or conduction signals from the diamond due to incident radiation. The pre-amplifier provides a first output having only an AC component, and a second output having both an AC and a DC component. A DC feedback stage (36) applies a feedback signal to the input of the pre-amplifier to improve its dynamic range.
摘要翻译: 本发明提供了用于测量核辐射的装置。 该装置包括探针(10),其包括合成金刚石(12)和FET前置放大器(TR1,TR2)。 在金刚石之间施加DC偏置电压,并且由于入射辐射,前置放大器放大来自钻石的脉冲或传导信号。 前置放大器提供仅具有AC分量的第一输出和具有AC和DC分量两者的第二输出。 DC反馈级(36)将反馈信号施加到前置放大器的输入端以改善其动态范围。
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