NIOBIUM BASE COMPOSITE MATERIAL AND ITS PRODUCING METHOD

Title:

NIOBIUM BASE COMPOSITE MATERIAL AND ITS PRODUCING METHOD

Document Type and Number:

Japanese Patent JP2001226734

Kind Code:

A

Abstract:

To produce a niobium base composite material excellent in tensile strength, compressive strength and creep strength in a superhigh temperature region and also having toughness in the range from ordinary temperature to high temperature.

This niobium silicide dispersed type niobium base composite material contains 5 to 20 at.% Si, 5 to 30 at.% Mo, 5 to 15 at.% W, and the balance substantial Nb. Moreover, in the material, niobium silicide being a dispersed phase is mainly Nb5Si3 and also, the niobium silicide has a mutually connected network structure. Moreover, the formed body of the material is produced by a hot press sintering-heat treating method, a discharge plasma sintering method or a melting-solidifying method in a water-cooled die.

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Inventors:

KASAMA AKIO
TANAKA HISAO
TANAHASHI HIROYUKI
TAN TAKESHI
BA TOMOTOSHI
FUJIKURA MASAKUNI

Application Number:

JP2000036350A

Publication Date:

August 21, 2001

Filing Date:

February 15, 2000

Export Citation:

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Assignee:

CHOKOON ZAIRYO KENKYUSHO KK

International Classes:

C22F1/18; B22F3/10; B22F3/105; C22C1/04; C22C1/10; C22C27/02; C22F1/00; (IPC1-7): C22C27/02; B22F3/10; B22F3/105; C22C1/04; C22C1/10; C22F1/18

Attorney, Agent or Firm:

Ishikawa Hideki

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