COMPOSITE CARBONITRIDE POWDER AND METHOD FOR PRODUCING SAME

Title:

COMPOSITE CARBONITRIDE POWDER AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2017/077885

Kind Code:

A1

Abstract:

This composite carbonitride powder comprises: Ti as a main component element; and at least one type of additive element selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, and Si. The composite carbonitride powder includes a plurality of composite carbonitride particles including Ti and the additive element(s). The plurality of composite carbonitride particles include a plurality of homogeneous composition particles, wherein the difference between the average concentration of Ti, as well as the average concentration of each additive element, in the entire composite carbonitride powder and the average concentration of Ti, as well as the average concentration of each additive element, in each of the composite carbonitride particles is within a range from -5 at.% to 5 at.% inclusive. The cross-sectional area of the homogeneous composition particles is 90% or greater of the cross-sectional area of the composite carbonitride particles 1p, and the number of the homogeneous composition particles is 90% or greater than the number of the composite carbonitride particles 1p.

Inventors:

MICHIUCHI MASATO (JP)
TSUDA KEIICHI (JP)
MINATO YOSHIHIRO (JP)
ISHIDA TOMOYUKI (JP)
MATSUMOTO AKIHIDE (JP)
HAYASHI TAKEHIKO (JP)

Application Number:

PCT/JP2016/081311

Publication Date:

May 11, 2017

Filing Date:

October 21, 2016

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)
ALMT CORP (JP)

International Classes:

C01B21/082; C22C29/02

Foreign References:

JPS6445702A	1989-02-20
JPS61106406A	1986-05-24
JPS6445704A	1989-02-20
JPS6445703A	1989-02-20
JPS6445701A	1989-02-20
JPS5836914A	1983-03-04
JPS5727913A	1982-02-15

Other References: