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Title:
WEAR-RESISTANT TOOL
Document Type and Number:
WIPO Patent Application WO/2017/073424
Kind Code:
A1
Abstract:
The core of this wear-resistant tool is a composite polycrystalline diamond comprising polycrystalline diamond in which particulate diamond is directly bonded, and non-diamond-like carbon. The polycrystalline diamond in the composite polycrystalline diamond is three-dimensionally continuous within the composite polycrystalline structure, and the average primary particle diameter is 10-500 nm.

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Inventors:
SUMIYA HITOSHI (JP)
SATO TAKESHI (JP)
YUKAWA MAKOTO (JP)
SUEMITSU BUNYA (JP)
Application Number:
PCT/JP2016/080933
Publication Date:
May 04, 2017
Filing Date:
October 19, 2016
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
ALMT CORP (JP)
International Classes:
B21C3/02
Domestic Patent References:
WO2008088048A12008-07-24
WO2015166730A12015-11-05
Foreign References:
JP2010149139A2010-07-08
JP2002102917A2002-04-09
Other References:
HITOSHI SUMIYA ET AL.: "High Pressure Synthesis of High-Purity Polycrystalline Diamonds by Direct Conversion from Various Carbon Materials and their Characterization", THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY, vol. 16, no. 3, 20 August 2006 (2006-08-20), pages 207 - 215, XP055109771
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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