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1.
公开(公告)号:ZA200307114B
公开(公告)日:2004-07-01
申请号:ZA200307114
申请日:2003-09-11
Applicant: GEN ELECTRIC
Inventor: PENDER DAVID CHARLES , EVELYN MARK PHILIP D , IACOVANGELO CHARLES DOMINIC , TYSOE STEVEN ALFRED
IPC: B22F1/02 , B23B27/14 , B23B27/20 , C04B37/00 , C04B41/45 , C04B41/51 , C04B41/52 , C04B41/81 , C04B41/88 , C04B41/89 , C22C1/05 , C22C26/00 , C22C
Abstract: A metal-infiltrated polycrystalline diamond composite tool comprising a plurality of diamond grains forming a continuous polycrystalline diamond matrix, a metallic phase being substantially palladium-free and contiguous to the continuous polycrystalline diamond matrix, wherein the metallic phase interpenetrates the continuous polycrystalline diamond matrix and substantially wets an outer surface of the continuous polycrystalline diamond matrix; and a working surface. The metallic phase is formed from an infiltrant and a wetting-enhancement layer disposed on the outer surfaces of the diamond particles, with both the infiltrant and wetting-enhancement layer being substantially palladium-free and comprising at least one metal from the group consisting of cobalt, iron, and nickel. The invention also includes a preform for a metal-infiltrated polycrystalline diamond composite tool, the perform comprising a container, a metallic infiltrant source, and a plurality of coated diamonds, each coated with a wetting-enhancement layer and, optionally, an activation layer, both of which are substantially palladium-free. Methods of forming the metal-infiltrated polycrystalline diamond composite tool, the preform, and the coated diamond particles used in the tool are also disclosed.
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公开(公告)号:AU2007203614A1
公开(公告)日:2008-02-21
申请号:AU2007203614
申请日:2007-08-02
Applicant: GEN ELECTRIC
Inventor: SHUBA ROMAN , EVELYN MARK PHILIP D , LEMAN JOHN THOMAS , MCNULTY THOMAS FRANCIS
IPC: C01B33/02 , C01B33/023 , C01B33/025 , C01B33/187 , H01L21/02 , H01L31/18
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公开(公告)号:AU2003215191A1
公开(公告)日:2004-09-06
申请号:AU2003215191
申请日:2003-02-12
Applicant: GEN ELECTRIC
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4.
公开(公告)号:AU2003298923A1
公开(公告)日:2004-07-29
申请号:AU2003298923
申请日:2003-12-05
Applicant: GEN ELECTRIC
Inventor: EVELYN MARK PHILIP D , LEONELLI ROBERT VINCENT JR , ALLISON PETER SAM , NARANG KRISTI JEAN , GIDDINGS ROBERT ARTHUR
IPC: B01J3/06
Abstract: A high temperature/high pressure (HP/HT) apparatus for converting feedstock housed in a capsule into product crystals, comprising at least two electrical heating paths for independent control of both the mean temperature in the reaction cell and the temperature gradient across the reaction cell.
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公开(公告)号:AU4190201A
公开(公告)日:2001-09-24
申请号:AU4190201
申请日:2001-03-02
Applicant: GEN ELECTRIC
Inventor: EVELYN MARK PHILIP D , MICHALE JAMES MICHAEL JR
Abstract: A functionalized diamond comprises an organic functionalized moiety. The organic functionalized moiety being selected from: vinyl, amide, alcohol, acidics, phenolics, hydroxyls, carboxyl, aldehyde, and aliphatics, and combinations thereof.
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公开(公告)号:AU7729700A
公开(公告)日:2001-05-10
申请号:AU7729700
申请日:2000-09-28
Applicant: GEN ELECTRIC
Inventor: EVELYN MARK PHILIP D , NARANG KRISTI JEAN
Abstract: A gallium nitride growth process forms crystalline gallium nitride. The process comprises the steps of providing a source gallium nitride; providing mineralizer; providing solvent; providing a capsule; disposing the source gallium nitride, mineralizer and solvent in the capsule; sealing the capsule; disposing the capsule in a pressure cell; and subjecting the pressure cell to high pressure and high temperature (HPHT) conditions for a length of time sufficient to dissolve the source gallium nitride and precipitate the source gallium nitride into at least one gallium nitride crystal. The invention also provides for gallium nitride crystals formed by the processes of the invention.
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公开(公告)号:AU2008269015A1
公开(公告)日:2008-12-31
申请号:AU2008269015
申请日:2008-05-20
Applicant: GEN ELECTRIC
Inventor: LEWIS LARRY NEIL , EVELYN MARK PHILIP D , SHUBA ROMAN , LEMAN JOHN THOMAS , MCNULTY THOMAS FRANCIS , LOU VICTOR LIENKONG
IPC: C01B33/025
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公开(公告)号:ZA200304563B
公开(公告)日:2004-04-29
申请号:ZA200304563
申请日:2003-06-11
Applicant: GEN ELECTRIC
Inventor: EVELYN MARK PHILIP D , ROWLAND LARRY BURTON , LUCEK JOHN WILLIAM , LEVINSON LIONEL MONTY , ARTHUR STEPHEN DALEY , VAGARALI SURESH SHANKARAPPA , ANTHONY THOMAS RICHARD
Abstract: A method for removing defects at high pressure and high temperature (HP/HT) or for relieving strain in a non-diamond crystal commences by providing a crystal, which contains defects, and a pressure medium. The crystal and the pressure medium are disposed in a high pressure cell and placed in a high pressure apparatus, for processing under reaction conditions of sufficiently high pressure and high temperature for a time adequate for one or more of removing defects or relieving strain in the single crystal.
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公开(公告)号:ZA9907234B
公开(公告)日:2000-05-16
申请号:ZA9907234
申请日:1999-11-22
Applicant: GEN ELECTRIC
Inventor: EVELYN MARK PHILIP D
IPC: B24D3/00 , C01B31/06 , C23C14/02 , C23C14/58 , C23C16/02 , C23C16/06 , C23C16/56 , C30B29/04 , C30B , B24D , C09K , C23C
CPC classification number: C23C14/5846 , C23C14/024 , C23C16/0272 , C23C16/56 , Y10T428/24802 , Y10T428/24826 , Y10T428/24917 , Y10T428/24975 , Y10T428/265 , Y10T428/30 , Y10T428/31678
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公开(公告)号:ZA200304755B
公开(公告)日:2004-07-14
申请号:ZA200304755
申请日:2003-06-19
Applicant: GEN ELECTRIC
Inventor: EVELYN MARK PHILIP D , MICHAEL MCHALE JAMES JR , SAAK AARON WILBUR , NARANG KRISTI JEAN , LOH MICHAEL HANS , WEBB STEVEN WILLIAM
Abstract: An abrasive diamond composite formed from coated diamond particles and a matrix material. The diamonds have a protective coating formed from a refractory material having a composition MC x N y , that prevents corrosive chemical attack of the diamonds by the matrix material. The abrasive diamond composite may further include an infiltrant, such as a braze material. Alternatively, the abrasive diamond composite may include a plurality of coated diamond particles and a braze material filling interstitial spaces between the coated diamond particles. Methods of making such abrasive diamond composites are also disclosed.
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