GB2246773A - Diamond composites - Google Patents

Diamond composites

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Publication number
GB2246773A
GB2246773A GB9117308A GB9117308A GB2246773A GB 2246773 A GB2246773 A GB 2246773A GB 9117308 A GB9117308 A GB 9117308A GB 9117308 A GB9117308 A GB 9117308A GB 2246773 A GB2246773 A GB 2246773A
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GB
United Kingdom
Prior art keywords
ceramic
composites
diamond particles
diamond
elevated temperatures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9117308A
Other versions
GB9117308D0 (en
Inventor
Colleen Joyce Bettles
Michael Vincent Swain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commonwealth Scientific and Industrial Research Organization CSIRO
Original Assignee
Commonwealth Scientific and Industrial Research Organization CSIRO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Commonwealth Scientific and Industrial Research Organization CSIRO filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Publication of GB9117308D0 publication Critical patent/GB9117308D0/en
Publication of GB2246773A publication Critical patent/GB2246773A/en
Withdrawn legal-status Critical Current

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Abstract

Diamond composites comprising diamond particles bound in a ceramic matrix are disclosed. The diamond particles preferably have a particle size of less than 100 micron. The diamond composites contain less than 70% by volume of the diamond particles. The composites can be formed by densifying mixtures of the diamond particles and a ceramic powder at elevated temperatures and pressures of less than 200 MPa. The ceramic may be an oxide or non-oxide ceramic other than silicon carbide. Included within the scope of the term oxide ceramic are all materials containing oxygen which behave as ceramics at elevated temperatures especially those oxides of elements having an atomic number greater than 11. The term non-oxide ceramic includes all materials containing carbon, nitrogen, boron or a combination thereof that behave as a ceramic at elevated temperatures. Ceramics exemplified include aluminium nitride, chromium carbide, alumina, yttria/ zirconia, cordierte (2MgO.2Al2O3.5SiO2) and mullite (3Al2O3.2SiO2). The composites can be used in making abrading wheels and gemstone polishing scaifes.
GB9117308A 1989-02-13 1991-08-09 Diamond composites Withdrawn GB2246773A (en)

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AUPJ269589 1989-02-13
AUPJ269489 1989-02-13

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DE202007016868U1 (en) * 2007-12-04 2008-02-14 Burgmann Industries Gmbh & Co. Kg Sliding ring of a mechanical seal assembly
CA2723516A1 (en) 2008-05-16 2009-11-19 Element Six (Production) (Pty) Ltd Boron carbide composite materials
ES2530594B1 (en) * 2013-07-31 2015-12-09 Consejo Superior De Investigaciones Científicas (Csic) NANO-STRUCTURED COMPOSITE MATERIAL WITH GEMOLOGICAL PROPERTIES
RU2556673C1 (en) * 2014-04-29 2015-07-10 Федеральное государственное бюджетное научное учреждение "Технологический институт сверхтвердых и новых углеродных материалов" (ФГБНУ ТИСНУМ) Method of obtaining carbon-based composite material and composite material
CN104591783B (en) * 2015-01-29 2017-01-18 吉林大学 Method for plating boron carbide on diamond surface

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US4171973A (en) * 1977-05-04 1979-10-23 Sumitomo Electric Industries, Ltd. Diamond/sintered carbide cutting tool
US4303442A (en) * 1978-08-26 1981-12-01 Sumitomo Electric Industries, Ltd. Diamond sintered body and the method for producing the same
US4525178A (en) * 1984-04-16 1985-06-25 Megadiamond Industries, Inc. Composite polycrystalline diamond

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JPS5567570A (en) * 1978-11-14 1980-05-21 Mitsubishi Metal Corp Ultrahigh pressure sintered tool material
JPS5622676A (en) * 1979-07-26 1981-03-03 Kuratomi Tatsuro Diamond cubic boron nitride composite solidifed body and its manufacture
JPS56129672A (en) * 1980-03-17 1981-10-09 Mitsubishi Metal Corp Tenacious antiabrasive sintered hard material
JPS56129673A (en) * 1980-03-17 1981-10-09 Mitsubishi Metal Corp Tenacious antiabrasive super high pressure sintered hard material
JPS60162747A (en) * 1984-02-03 1985-08-24 Sumitomo Electric Ind Ltd Composite diamond sintered body and its production

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US4171973A (en) * 1977-05-04 1979-10-23 Sumitomo Electric Industries, Ltd. Diamond/sintered carbide cutting tool
US4303442A (en) * 1978-08-26 1981-12-01 Sumitomo Electric Industries, Ltd. Diamond sintered body and the method for producing the same
US4525178A (en) * 1984-04-16 1985-06-25 Megadiamond Industries, Inc. Composite polycrystalline diamond
US4525178B1 (en) * 1984-04-16 1990-03-27 Megadiamond Ind Inc

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