COMPOSITE POLYCRYSTAL AND METHOD FOR PRODUCING SAME

Title:

COMPOSITE POLYCRYSTAL AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2017/073257

Kind Code:

A1

Abstract:

This composite polycrystal has a polycrystalline diamond phase that includes a plurality of diamond particles and a non-diamond phase that is configured from non-diamond carbon. The non-diamond phase is dispersed in the polycrystalline diamond phase. An average value of a projected area equivalent circle diameter of the non-diamond phase is 1000 nm or less.

Inventors:

ISHIDA YUH (JP)
SATO TAKESHI (JP)
SUMIYA HITOSHI (JP)

Application Number:

PCT/JP2016/079418

Publication Date:

May 04, 2017

Filing Date:

October 04, 2016

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)

International Classes:

C04B35/52; B01J3/04; B01J3/06

Domestic Patent References:

WO2007011019A1	2007-01-25
WO2015166730A1	2015-11-05

Foreign References:

JP2011190124A	2011-09-29
JP2003292397A	2003-10-15
JP2004196595A	2004-07-15

Other References:

SUMIYA, HITOSHI ET AL.: "Microstructure and Mechanical Properties of High-Hardness Nano-Polycrystalline Diamonds", SEI TECHNICAL REVIEW, April 2008 (2008-04-01), pages 85 - 92, XP009177780, ISSN: 1343-4349
See also references of EP 3369717A4

Attorney, Agent or Firm:

FUKAMI PATENT OFFICE, P.C. (JP)

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