公开(公告)号：US4073380A

公开(公告)日：1978-02-14

申请号：US705720

申请日：1976-07-15

Applicant: Herbert M. Strong ,  Roy E. Tuft

Inventor： Herbert M. Strong ,  Roy E. Tuft

IPC: B01J3/06 ,  C01B31/06 ,  B65D25/08 ,  B65D85/70

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/068 ,  Y10T117/1096

Abstract: Improvements are provided in reaction vessel construction used in the growth of diamond by the process disclosed in U.S. Pat. No. 3,297,407 -- Wentorf, Jr. In assembly of the reaction vessel of this invention, the plug of catalyst-solvent material is disposed between the source of carbon and the diamond seed material as in the Wentorf, Jr. patent and, in addition, the diamond seed material is separated from the catalyst-solvent plug by means for isolating the diamond seed material from the catalyst-solvent material until after the latter has become saturated with carbon from the source of carbon. In addition, preferably the under surface of the plug of catalyst-solvent metal is covered with means for suppressing diamond nucleation. The nucleation suppressing means is usually in the form of a disc and may completely cover the underside of the catalyst-solvent plug or may have a hole therethrough in juxtaposition to the diamond seed/isolating means combination(s). When both the isolating means and the nucleation suppressing means are employed, capability is provided for simultaneously preventing dissolution of the diamond seed and suppressing spurious diamond nucleation.

Abstract translation: 通过美国专利公开的方法在用于生长金刚石的反应容器结构中提供了改进。 在本发明的反应容器的组装中，如Wentorf，Jr.专利中所述，将催化剂 - 溶剂材料的塞子置于碳源和金刚石种子材料之间，另外， 通过将金刚石种子材料与催化剂 - 溶剂材料分离直到后者已经被来自碳源的碳饱和为止，金刚石种子材料与催化剂 - 溶剂塞分离。 此外，优选地，催化剂 - 溶剂金属的塞子的下表面被用于抑制金刚石成核的装置覆盖。 成核抑制装置通常是圆盘的形式，并且可以完全覆盖催化剂 - 溶剂塞的下侧，或者可以与金刚石种子/隔离装置组合并置穿过其中的孔。 当采用隔离装置和成核抑制装置两者时，提供同时防止金刚石晶粒溶解并且抑制假金刚石成核的能力。

公开(公告)号：US4042673A

公开(公告)日：1977-08-16

申请号：US412332

申请日：1973-11-02

Applicant: Herbert M. Strong

Inventor： Herbert M. Strong

IPC: B01J3/06 ,  C01B31/06

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/068 ,  Y10T117/1096

Abstract: Diamond crystals of controlled impurity content and/or impurity distribution and reaction vessel configurations for the production thereof are described. Combinations of "dopant," "getter" and "compensator" materials are employed to produce gem stones of unusual color patterns, or zoned coloration, using specific reaction vessel configurations.

Abstract translation: 描述了用于生产的可控杂质含量和/或杂质分布和反应容器结构的金刚石晶体。 使用“掺杂剂”，“吸气剂”和“补偿剂”材料的组合来生产具有不同颜色图案的宝石，或使用特定的反应容器构型分割着色。

公开(公告)号：US3676069A

公开(公告)日：1972-07-11

申请号：US3676069D

申请日：1970-08-13

Applicant: TELEDYNE INC

Inventor： KENNEDY GEORGE C

IPC: B01J3/06 ,  C01B31/06

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

Abstract: A METHOD OF MANUFACTURING DIAMOND FROM GRAPHITE IN A HYDROGEN FREE ENVIRONMENT IS DISCLOSED IN WHICH A REACTION VESSEL IS FIRST FORMED FROM AN ANHYDROGENOUS MATERIAL. A CHARGE OF GRAPHITE AND A CARBON SOLVENT IS PLACED IN THE REACTION VESSEL AND THE REACTION VESSEL IS PLACED IN THE REACTION CHAMBER. A PLUNGER IS PLACED IN THE REACTION CHAMBER TO GENERATE HIGH PRESSURES THEREIN, AND THE RELATIVELY MOVING SURFACES BETWEEN THE REACTION CHAMBER AND THE PLUNGER ARE LUBRICATED WITH AN ANHYDROGENOUS LUBRICANT. THE TEMPERATURE AND PRESSURE IN THE REACTION CHAMBER ARE THEN RAISED UNTIL THE CONDITIONS IN THE REACTION CHAMBER ARE ABOVE THE DIAMOND-GRAPHITE EQUILIBRIUM LINE OF THE CARBON PHASE DIAGRAM AND THESE PRESSURE AND TEMPERATURE CONDITIONS ARE MAINTAINED FOR A PREDETERMINED TIME PERIOD UNTIL AT LEAST A PORTION OF THE GRAPHITE IN THE CHARGE IS CONVERTED TO DIAMOND.

公开(公告)号：US3652220A

公开(公告)日：1972-03-28

申请号：US3652220D

申请日：1970-05-13

Applicant: SCANDIMANT AB

Inventor： LINDSTROM CEDRIC E

IPC: B01J3/06 ,  C01B31/06

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

Abstract: Synthetic diamonds are produced by subjecting carbonaceous material to heat and pressure in the presence of a metallic solvent having projecting portions.

Abstract translation: 通过在具有突出部分的金属溶剂的存在下对含碳材料进行加热和压力来制造合成金刚石。

公开(公告)号：US3442615A

公开(公告)日：1969-05-06

申请号：US3442615D

申请日：1966-11-07

Applicant: TOKYO SHIBAURA ELECTRIC CO

Inventor： WAKATSUKI MASAO ,  AOKI TOSHIO ,  HAYASHI HIROAKI

IPC: B01J3/06 ,  C01B31/06

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

公开(公告)号：US3268457A

公开(公告)日：1966-08-23

申请号：US18548462

申请日：1962-04-05

Applicant: GIARDINI ARMANDO A ,  TYDINGS JOHN E

Inventor： GIARDINI ARMANDO A ,  TYDINGS JOHN E

IPC: B01J3/06 ,  C30B1/02 ,  C30B1/12

CPC classification number: C30B1/12 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068 ,  C30B1/02 ,  C30B29/04

公开(公告)号：US2947608A

公开(公告)日：1960-08-02

申请号：US53093555

申请日：1955-08-29

Applicant: GEN ELECTRIC

Inventor： TRACY HALL HOWARD

IPC: B01J3/06

CPC classification number: B01J3/067 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0625 ,  B01J2203/0655 ,  B01J2203/068 ,  C01B32/25

公开(公告)号：US20240327212A1

公开(公告)日：2024-10-03

申请号：US18602260

申请日：2024-03-12

Applicant: HAZER GROUP LTD.

Inventor： Andrew CORNEJO ,  Hui Tong CHUA

IPC: C01B3/26 ,  B01J8/00 ,  B01J8/26 ,  B01J19/00 ,  B01J19/24 ,  B01J23/745 ,  C01B3/30 ,  C01B32/205 ,  C21B15/00

CPC classification number: C01B3/26 ,  B01J8/0005 ,  B01J8/26 ,  B01J19/0013 ,  B01J19/2445 ,  B01J19/245 ,  B01J23/745 ,  C01B3/30 ,  C01B32/205 ,  C21B15/00 ,  B01J2203/061 ,  C01B2203/0277 ,  C01B2203/1047 ,  C01B2203/1241

Abstract: In accordance with the present invention, there is provided a process for producing hydrogen and graphitic carbon from a hydrocarbon gas comprising: contacting at a temperature between 600° C. and 1000° C. the catalyst with the hydrocarbon gas to catalytically convert at least a portion of the hydrocarbon gas to hydrogen and graphitic carbon, wherein the catalyst is a low grade iron oxide.

公开(公告)号：US20180238115A1

公开(公告)日：2018-08-23

申请号：US15955050

申请日：2018-04-17

Applicant: Element Six Abrasives S.A.

Inventor： Nedret CAN ,  Kaveshini NAIDOO

IPC: E21B10/46 ,  E21B10/573 ,  C04B37/02 ,  B01J3/06 ,  B32B18/00 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/626 ,  C04B35/63 ,  C04B35/645 ,  C01B32/25 ,  C22C26/00 ,  B22F5/00

CPC classification number: E21B10/46 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0615 ,  B01J2203/062 ,  B01J2203/0625 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B22F2005/001 ,  B32B18/00 ,  B32B2307/554 ,  B32B2307/704 ,  B82Y30/00 ,  C01B32/25 ,  C04B35/52 ,  C04B35/6261 ,  C04B35/62655 ,  C04B35/6303 ,  C04B35/645 ,  C04B37/021 ,  C04B2235/3813 ,  C04B2235/3839 ,  C04B2235/3843 ,  C04B2235/424 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/5472 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2237/588 ,  C04B2237/704 ,  C22C26/00 ,  C22C2026/005 ,  C22C2026/006 ,  E21B10/573

Abstract: A polycrystalline diamond structure comprises a first region and a second region adjacent the first region, the second region being bonded to the first region by intergrowth of diamond grains. The first region comprises a plurality of alternating strata or layers, each or one or more strata or layers in the first region having a thickness in the range of around 5 to 300 microns. The polycrystalline diamond (PCD) structure has a diamond content of at most about 95 percent of the volume of the PCD material, a binder content of at least about 5 percent of the volume of the PCD material, and one or more of the layers or strata in the first region comprise and/or the second region comprises diamond grains having a mean diamond grain contiguity of greater than about 60 percent and a standard deviation of less than about 2.2 percent. There is also disclosed a method of making such a polycrystalline diamond structure.

公开(公告)号：US09878956B2

公开(公告)日：2018-01-30

申请号：US15167315

申请日：2016-05-27

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya ,  Takeshi Sato

IPC: B24D3/02 ,  B24D3/00 ,  B24D11/00 ,  B24D18/00 ,  C09K3/14 ,  C04B35/52 ,  B01J3/06 ,  C01B32/25

CPC classification number: C04B35/52 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  C01B32/25 ,  C04B2235/42 ,  C04B2235/427 ,  Y10T428/2982

Abstract: Nano polycrystalline diamond is composed of carbon, an element of different type which is an element other than carbon and is added to be dispersed in carbon at an atomic level, and an inevitable impurity. The polycrystalline diamond has a crystal grain size not greater than 500 nm. The polycrystalline diamond can be fabricated by subjecting graphite in which the element of different type which is an element other than carbon has been added to be dispersed in carbon at an atomic level to heat treatment within high-pressure press equipment.