Thermostable polycrystalline diamond body, method and mold for producing same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4643741
SERIAL NO

06681549

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Abstract

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A thermostable polycrystalline diamond body is produced by pre-treating the diamond crystals with molten base or salt, mixing the pre-treated diamond crystals with silicon powder or a blend of silicon and one or more substances, subjecting the mixture to a combination of high-pressure and high-temperature and maintaining the pressure and temperature for a period of time. The thermostable polycrystalline diamond body is characterized in having diamond crystals uniformly distributed in the body. The diamond crystals are covered by .beta.-silicon carbide and that the diamond crystals together with .beta.-silicon carbide form an uninterrupted framework throughout the entire body, the interstices of which are filled with elemental silicon or silicon-containing refractory phases. A polygonal graphite mold having walls of equal thickness useful in the production of said thermostable polycrystalline diamond body is also provided.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES & GRINDING STATE COMMISSIONOF MACHINERY INDUSTRYZHENGZHOU HENAN0

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wang, Chaodong Research Institute for Abrasives & Grinding, Ministry of Machine Building, Zhengzhou, Henan, CN 2 27
Yang, Zhen Research Institute for Abrasives & Grinding, Ministry of Machine Building, Zhengzhou, Henan, CN 42 472
Yu, Hongchang Research Institute for Abrasives & Grinding, Ministry of Machine Building, Zhengzhou, Henan, CN 2 28
Zai, Zhongqing Research Institute for Abrasives & Grinding, Ministry of Machine Building, Zhengzhou, Henan, CN 1 27

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SOCIETE GENERALE (1)
* 4469655 Process and apparatus for moulding articles from binder-containing organic fibrous mats 25 1982
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2010/0285,335 POLYCRYSTALLINE DIAMOND (PCD) MATERIALS 0 2008
* 2010/0287,845 POLYCRYSTALLINE DIAMOND COMPOSITES 25 2008
 
US SYNTHETICS CORPORATION (1)
9657529 Polycrystalline diamond compact including a pre-sintered polycrystalline diamond table including a nonmetallic catalyst that limits infiltration of a metallic-catalyst infiltrant therein and applications therefor 0 2015
 
REEDHYCALOG UK LIMITED (1)
* 6248447 Cutting elements and methods of manufacture thereof 106 1999
 
SMITH INTERNATIONAL, INC. (3)
* 2005/0230,150 Coated diamonds for use in impregnated diamond bits 22 2004
* 8875813 Atomic layer deposition nanocoatings on cutting tool powder materials 0 2007
* 2008/0073,127 ATOMIC LAYER DEPOSITION NANOCOATINGS ON CUTTING TOOL POWDER MATERIALS 42 2007
 
M CUBED TECHNOLOGIES, INC. (1)
* 7658781 Silicon-containing composite bodies, and methods for making same 4 2005
 
II-VI INCORPORATED (1)
9469918 Substrate including a diamond layer and a composite layer of diamond and silicon carbide, and, optionally, silicon 0 2015
 
NANO MATERIALS INTERNATIONAL CORPORATION (6)
* 7279023 High thermal conductivity metal matrix composites 3 2003
* 2005/0074,355 High thermal conductivity metal matrix composites 2 2003
8066937 Method for making high thermal conductivity metal matrix composite 1 2007
7988758 High thermal conductivity metal matrix composites 0 2010
* 2010/0110,637 HIGH THERMAL CONDUCTIVITY METAL MATRIX COMPOSITES 2 2010
8673453 High thermal conductivity metal matrix composites 0 2011
 
MORGAN CHEMICAL PRODUCTS, INC. (1)
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Morgan Advanced Ceramics, Inc. (1)
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SUMITOMO ELECTRIC INDUSTRIES, LTD. (1)
* 6673439 Coated diamond, manufacturing method and composite material thereof 7 2001
 
ELEMENT SIX (PRODUCTION) (PTY) LIMITED (1)
* 2010/0186,303 Polycrystalline Diamond Abrasive Element and Method of its Production 8 2006
 
US SYNTHETIC CORPORATION (19)
* 8734552 Methods of fabricating polycrystalline diamond and polycrystalline diamond compacts with a carbonate material 4 2008
9103172 Polycrystalline diamond compact including a pre-sintered polycrystalline diamond table including a nonmetallic catalyst that limits infiltration of a metallic-catalyst infiltrant therein and applications therefor 3 2009
* 9352447 Superabrasive elements and methods for processing and manufacturing the same using protective layers 0 2009
* 2011/0056,141 Superabrasive Elements and Methods for Processing and Manufacturing the Same Using Protective Layers 22 2009
8461832 Method of characterizing a polycrystalline diamond element by at least one magnetic measurement 1 2010
* 2010/0225,311 METHOD OF CHARACTERIZING A POLYCRYSTALLINE DIAMOND ELEMENT BY AT LEAST ONE MAGNETIC MEASUREMENT 6 2010
* 9459236 Polycrystalline diamond compact 0 2010
* 2010/0307,069 POLYCRYSTALLINE DIAMOND COMPACT 9 2010
8512023 Injection mold assembly including an injection mold cavity at least partially defined by a polycrystalline diamond material 2 2011
* 9134275 Polycrystalline diamond compact and method of fabricating same 0 2011
* 2011/0189,468 POLYCRYSTALLINE DIAMOND COMPACT AND METHOD OF FABRICATING SAME 9 2011
8727046 Polycrystalline diamond compacts including at least one transition layer and methods for stress management in polycrsystalline diamond compacts 1 2011
8702412 Superhard components for injection molds 1 2012
9315881 Polycrystalline diamond, polycrystalline diamond compacts, methods of making same, and applications 0 2012
8616306 Polycrystalline diamond compacts, method of fabricating same, and various applications 13 2012
8678801 Injection mold assembly including an injection mold cavity at least partially defined by a polycrystalline diamond material 0 2013
8766628 Methods of characterizing a component of a polycrystalline diamond compact by at least one magnetic measurement 0 2013
9193103 Methods of injection molding 0 2014
9199400 Methods of injection molding an article 0 2014
* Cited By Examiner