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Title:
TUNGSTEN CARBIDE POWDER, TUNGSTEN CARBIDE-COBALT METAL COMPOSITE POWDER, AND CEMENTED CARBIDE
Document Type and Number:
WIPO Patent Application WO/2019/123764
Kind Code:
A1
Abstract:
This WC powder includes WC particles which have an average particle diameter of 50 nm or less and in which transition metal elements are dissolved in a solid state, wherein the transition metal elements contain Co. This WC-Co metal composite powder includes WC particles and Co metals which are formed on the surfaces of at least some of the WC particles. This cemented carbide includes WC particles which have an average particle diameter of 80 nm or less and a maximum particle diameter of 100 nm or less and in which transition metal elements are dissolved in a solid state.

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Inventors:
ONOKI TAKAMASA (JP)
GOTOU HIROAKI (JP)
Application Number:
PCT/JP2018/036902
Publication Date:
June 27, 2019
Filing Date:
October 02, 2018
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
B22F1/00; C22C1/05; C22C29/08
Foreign References:
JP2010077523A2010-04-08
JPS4737360B11972-09-20
JP2007262475A2007-10-11
JP2001239411A2001-09-04
JPH0754001A1995-02-28
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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