公开(公告)号：US5540904A

公开(公告)日：1996-07-30

申请号：US368732

申请日：1995-01-04

Applicant: Harold P. Bovenkerk ,  Thomas R. Anthony ,  James F. Fleischer ,  William F. Banholzer

Inventor： Harold P. Bovenkerk ,  Thomas R. Anthony ,  James F. Fleischer ,  William F. Banholzer

IPC: B01J3/06 ,  C01B31/06 ,  C23C16/27 ,  C30B25/02

CPC classification number: C23C16/27 ,  B01J3/062 ,  C01B31/06 ,  C30B25/02 ,  C30B29/04 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0625 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/068 ,  B01J2203/0685

Abstract: Broadly, the present invention is directed to polycrystalline diamond of improved thermal conductivity. The novel polycrystalline diamond consists essentially of at least 99.5 wt-% isotopically-pure carbon-12 or carbon-13. The inventive polycrystalline diamond is formed from at least 99.5 wt-% isotopically-pure carbon-12 or carbon-13. Single-crystal isotopically-pure carbon-12 and carbon-13 diamond are known to possess improved thermal conductivity. Polycrystalline diamond, however, possesses lower thermal conductivity patterns deleteriously impacted by, for example, impurities, isotopic effects, and grain boundary scattering. In fact, grain boundary scattering would lead the skilled artisan to believe that the thermal conductivity of polycrystalline diamond would be substantially unaffected by the isotopic nature of the diamond itself. Unexpectedly, however, isotopic effects were discovered to predominate in impacting the thermal conductivity of polycrystalline diamond consisting essentially of isotopically-pure carbon-12 or carbon-13. This is true whether the isotopically-pure polycrystalline diamond is grown directly or whether individual isotopically-pure carbon-12 or carbon 13 diamond crystals are subjected to sintering for forming a polycrystalline structure, e.g. layer or compact, thereof.

Abstract translation: 概括地说，本发明涉及具有改善导热性的多晶金刚石。 新型多晶金刚石基本上由至少99.5重量％的同位素纯碳-12或碳-13组成。 本发明的多晶金刚石由至少99.5重量％的同位素纯碳-12或碳-13形成。 已知单晶同位素纯碳-12和碳-13金刚石具有改善的导热性。 然而，多晶金刚石具有由例如杂质，同位素效应和晶界散射有害影响的较低热导率图案。 事实上，晶粒边界散射将导致技术人员相信，多晶金刚石的导热性将基本上不受金刚石本身的同位素性质的影响。 然而，意外的是，发现同位素效应在影响基本上由同位素纯碳-12或碳-13组成的多晶金刚石的热导率方面占优势。 无论同位素纯多晶金刚石是直接生长还是单独同位素纯碳12或碳13金刚石晶体进行烧结以形成多晶结构，例如， 层或紧凑。

公开(公告)号：US5328548A

公开(公告)日：1994-07-12

申请号：US995935

申请日：1992-12-23

Applicant: Kazuwo Tsuji ,  Takeru Nakashima

Inventor： Kazuwo Tsuji ,  Takeru Nakashima

IPC: B01J3/06 ,  C30B29/04

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068

Abstract: A method of synthesizing single diamond crystals using a carbon source containing at least 99.9 atomic % carbon-12. This is accomplished by graphitizing carbon-12 to form a highly crystalline material which can be used as a carbon source in an ultra high pressure creating apparatus to produce single diamond crystals by means of a temperature difference process.

Abstract translation: 使用含有至少99.9原子％碳-12的碳源合成单晶金刚石晶体的方法。 这是通过将碳12石墨化以形成高结晶性材料来实现的，该材料可以在超高压生成装置中用作碳源，通过温度差工艺制造单晶金刚石晶体。

公开(公告)号：US5194070A

公开(公告)日：1993-03-16

申请号：US915614

申请日：1992-07-21

Applicant: Hitoshi Sumiya ,  Kazuwo Tsuji

Inventor： Hitoshi Sumiya ,  Kazuwo Tsuji

IPC: B01J3/06 ,  C01B31/06 ,  C09C1/68 ,  C30B29/04

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/068

Abstract: Diamond abrasive grains are produced by a process which comprises steps of: regularly arranging a plurality of diamond crystal seeds on a first metal solvent plate, stacking a second solvent metal plate on the first solvent metal plate so that the diamond crystal seeds are sandwiched by the first solvent metal plate and the second solvent metal plate, and stacking a graphite raw plate on the second solvent metal plate to construct a production system for the diamond abrasive grains, heating the system or heating the system with pressurizing to a temperature above a solvent metal-graphite eutectic point through a temperature and pressure condition in which diamond is thermodynamically unstable to establish a temperature and pressure condition in which diamond is thermodynamically unstable, and heating the system or heating the system with pressurizing to establish a temperature and pressure condition in which diamond is thermodynamically stable and maintaining said condition.

公开(公告)号：US4522680A

公开(公告)日：1985-06-11

申请号：US485506

申请日：1983-04-15

Applicant: Kazufumi Ogawa

Inventor： Kazufumi Ogawa

IPC: B01J3/06 ,  B01J19/12 ,  C01B31/06 ,  C30B9/00

CPC classification number: C01B31/06 ,  B01J19/121 ,  B01J3/06 ,  C30B29/04 ,  C30B9/00 ,  B01J2203/061 ,  B01J2203/0655 ,  Y10S117/904

Abstract: A method for producing crystals of materials is described. The method comprises providing a pressure-resistant body having a nucleus of a starting material being crystallized in the inside thereof. The nucleus is applied with an energy which is capable of passing through the pressure-resistant body and being absorbed by the starting material, by which the nucleus is heated and melts. The melt is then gradually cooled under pressure to form crystals of the material. A laser beam or high frequency induction heating technique is used for heating the nucleus.

Abstract translation: 对材料晶体的制造方法进行说明。 该方法包括提供一种具有原料核在其内部结晶的耐压体。 细胞核被施加能量，其能够通过耐压体并被原料吸收，通过该能量，细胞核被加热和熔化。 然后将熔体在压力下逐渐冷却以形成材料的晶体。 使用激光束或高频感应加热技术来加热细胞核。

公开(公告)号：US4259090A

公开(公告)日：1981-03-31

申请号：US95903

申请日：1979-11-19

Applicant: Harold P. Bovenkerk

Inventor： Harold P. Bovenkerk

IPC: C04B35/52 ,  B01J3/06 ,  C01B31/06 ,  C22C1/05 ,  E21B10/56 ,  E21B10/567 ,  B24D3/02

CPC classification number: E21B10/567 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685

Abstract: An improvement in the manufacture of diamond compacts is disclosed in which a cylindrical mass of polycrystalline diamond is surrounded by and bonded to an outer mass of metal which provides support for the diamond. The improvement comprises the use of seed diamond to grow the polycrystalline mass under high pressure-high temperature (HP/HT) conditions from non-diamond carbon, utilizing a catalyst metal contained in the outer metal annulus. Preferably, this improved process is carried out using a cup-shaped metal mass having a stable carbide content of at least 10% and a coefficient of thermal expansion slightly higher than diamond. It is also preferred to heat the sample (the outer metal mass and the inner graphite mass) directly by passing an electric current through the outer metal mass in the HP/HT process during which the polycrystalline compact is formed.

Abstract translation: 公开了金刚石压块的制造方面的改进，其中多晶金刚石的圆柱形块被环绕并结合到为金刚石提供支撑的外部金属块。 该改进包括使用种子金刚石，使用金属外环中包含的催化剂金属，在非金刚石碳的高压 - 高温（HP / HT）条件下生长多晶体。 优选地，该改进方法使用具有至少10％的稳定碳化物含量和稍微高于金刚石的热膨胀系数的杯形金属块进行。 还优选通过在形成多晶压块的HP / HT工艺中使电流通过外部金属块直接加热样品（外部金属质量和内部石墨质量）。

公开(公告)号：US4254091A

公开(公告)日：1981-03-03

申请号：US067172

申请日：1979-08-16

Applicant: Eduard Woermann ,  Barbara Knecht ,  Matthias Roshenhauer

Inventor： Eduard Woermann ,  Barbara Knecht ,  Matthias Roshenhauer

IPC: B01J3/06 ,  C01B31/06

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068

Abstract: The synthesis of diamonds from salts of iron, manganese, calcium and magnesium is disclosed. Specifically, such synthesis, in a closed system, has involved carbonate and oxylate salts of the indicated metals. The reaction occurs at temperatures between 550.degree. and 1600.degree. C., higher temperatures requiring higher reaction pressures; specifically, the production of synthetic diamonds from ferrous carbonate is disclosed. The ferrous carbonate was packed into a platinum capsule which was sealed gas-tight, packed in unfired pyrophyllite, and heated for two hours at 900.degree. C. while in a solid media press which applied a pressure of 40 kb (subsequently defined).

Abstract translation: 公开了从铁，锰，钙和镁的盐合成金刚石。 具体来说，在封闭体系中的这种合成涉及指定金属的碳酸盐和氧化盐。 反应在550〜1600℃的温度下进行，更高的温度需要更高的反应压力; 具体地，公开了从碳酸亚铁制造人造金刚石。 将碳酸亚铁填充到密封气密封的铂胶囊中，填充在未烧焦的叶蜡石中，并在施加40kb压力（随后定义）的固体介质压机中在900℃加热2小时。

公开(公告)号：US4196181A

公开(公告)日：1980-04-01

申请号：US918766

申请日：1978-06-26

Applicant: Leonid F. Vereschagin ,  Evgeny N. Yakovlev ,  Vladislav N. Slesarev ,  Vasily A. Stepanov ,  Alexandr Y. Preobrazhensky ,  Tatyana D. Varfolomeeva ,  Ljudmila E. Shterenberg

Inventor： Leonid F. Vereschagin ,  Evgeny N. Yakovlev ,  Vladislav N. Slesarev ,  Vasily A. Stepanov ,  Alexandr Y. Preobrazhensky ,  Tatyana D. Varfolomeeva ,  Ljudmila E. Shterenberg

IPC: B01J3/06 ,  C01B31/06

CPC classification number: B01J3/062 ,  B01J3/065 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0625 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685

Abstract: A material consisting of grains varying in size from 0.1 to a few microns intergrown so as to form regular aggregates. The geometric shape of the material is preset by a pattern made from a carbon-bearing non-diamond material and corresponds to the shape of the required finished article. The material can be made in any desired number of identical shapes.

Abstract translation: 由0.1至几微米尺寸变化的晶粒组成的材料相互共生以形成规则的聚集体。 材料的几何形状由由含碳非金刚石材料制成的图案预设，并且对应于所需成品的形状。 该材料可以以任何所需数量的相同形状制成。

公开(公告)号：US4122636A

公开(公告)日：1978-10-31

申请号：US768886

申请日：1977-02-15

Applicant: Alexander R. Roy ,  Anthony B. Clarke

Inventor： Alexander R. Roy ,  Anthony B. Clarke

IPC: B01J3/06 ,  C09K3/14 ,  C01B33/06

CPC classification number: B01J3/062 ,  C09K3/1409 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068

Abstract: The invention provides elongate synthetic RD diamond particles, each particle having a long axis and a short transverse axis, the ratio of the long axis to the short axis being at least 3 to 1. Each particle generally has a rib bed structure down its long axis, the ribs of the structure being traces of {111} crystallographic planes and the long axis providing a backbone for the structure and being in the direction crystallographic direction. The invention further provides a resin bond grinding wheel in which these particles are radially oriented. The particles may be made by providing a body of solvent metal in contact with a body of carbonaceous material in a reaction zone, producing zones of the weakness in the carbonaceous body and subjecting the contents of the zone to conditions of pressure and temperature suitable for RD diamond growth so causing the solvent metal to penetrate the zones of weakness and produce the particles.

Abstract translation: 本发明提供细长的合成RD金刚石颗粒，每个颗粒具有长轴和短横轴，长轴与短轴的比例至少为3:1。每个颗粒通常在其长轴下方具有肋床结构 ，结构的肋是{111}晶面的痕迹，长轴为结构提供了骨架，并且在方向<100>晶体方向。 本发明还提供了一种树脂粘结砂轮，其中这些颗粒是径向取向的。 颗粒可以通过在反应区中提供与碳质材料体接触的溶剂金属体来制造，产生碳质体中的弱点的区域，并对该区域的内容物进行适合于RD的压力和温度条件 金刚石生长使得溶剂金属渗透到弱化区域并产生颗粒。

公开(公告)号：US4085196A

公开(公告)日：1978-04-18

申请号：US772474

申请日：1977-02-28

Applicant: Vladimir Ivanovich Farafontov ,  Yaroslav Alexeevich Kalashnikov ,  Jury Nikolaevich Novikov ,  Mark Efimovich Volpin ,  Leonid Fedorovich Vereschagin ,  Vladislav Sergeevich Lysanov

Inventor： Vladimir Ivanovich Farafontov ,  Yaroslav Alexeevich Kalashnikov ,  Jury Nikolaevich Novikov ,  Mark Efimovich Volpin ,  Leonid Fedorovich Vereschagin ,  Vladislav Sergeevich Lysanov

IPC: C01B31/06 ,  B01J3/06

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068

Abstract: A process for producing synthetic diamonds which comprises the synthesis of diamonds from a charge consisting of graphite or a carbonaceous material capable of being graphitized and a catalyst; as the latter use is made of a metalgraphite laminar compound of a transition metal, wherein said metal is interposed between the graphite layers and chemically bonded therewith.Said catalyst makes it possible to shorten the duration of the synthesis down to several seconds and carry-out the synthesis at a temperature of below 1,200.degree. C. The resulting diamond crystals are colorless and transparent.

Abstract translation: 一种生产人造金刚石的方法，其包括从由石墨或能够石墨化的碳质材料组成的电荷和催化剂合成金刚石; 因为后者使用由过渡金属的金相片层状化合物制成，其中所述金属介于石墨层之间并化学键合。

公开(公告)号：US4084942A

公开(公告)日：1978-04-18

申请号：US608260

申请日：1975-08-27

Applicant: Humberto Fernandez-Moran Villalobos

Inventor： Humberto Fernandez-Moran Villalobos

IPC: B24D18/00 ,  B24D3/04 ,  B24D3/08

CPC classification number: B82Y10/00 ,  B01J2203/061 ,  B01J2203/0655 ,  H01J2201/30457 ,  Y10S505/825 ,  Y10T83/929

Abstract: Ultrasharp diamond edges and points which are usable as cutting instruments and as high intensity point sources for the emission of electrons, ions, x-rays, coherent and incoherent light and high frequency electromagnetic radiation are produced by preparing and classifying ultrafine diamond powder having a particle size of 10 to 100 angstroms placing the powder in a diamond mold defining the ultrasharp edge or point to be produced and applying a pressure of the order of 80 to 90 kb while heating the powder to a temperature of the order of 2440.degree. to 2500.degree. K in an ultrahigh vacuum or inert atmosphere after degasing to avoid oxidation of the diamond powder.

Abstract translation: Ultrasharp金刚石边缘和可用作切割仪器的点和用于发射电子，离子，x射线，相干和非相干光和高频电磁辐射的高强度点源通过制备和分级具有颗粒的超细金刚石粉末 尺寸为10至100埃，将粉末放置在限定超薄边缘或待生产点的金刚石模具中，并施加大约80至90Kb的压力，同时将粉末加热至2440℃至2500℃的温度 K在超高真空或惰性气氛中脱气以避免金刚石粉末的氧化。