Title (en)

DISCONTINUOUS FIBER AND PARTICULATE REINFORCED REFRACTORY METAL COMPOSITE

Publication

EP 0305766 A3 19900404 (EN)

Application

EP 88112814 A 19880805

Priority

US 9296387 A 19870903

Abstract (en)

[origin: EP0305766A2] A method of making a reinforced refractory metal composite. A composition is prepared which comprises about 50 to about 99.9% by volume of niobium and about 0.1 to about 50% by volume of a particulate or fibrous dispersoid. The particulate dispersoid is an oxide, carbide, or boride of titanium, hafnium, zirconium, silicon, or a mixture thereof. The fibrous dispersoid is a carbide or boride of titanium, hafnium, zirconium, silicon, or a mixture thereof. The composition is mechanically alloyed in vacuum or in an inert atmosphere if a particulate dispersed is used It is then hot pressed at a temperature greater than at 1000 DEG C and a pressure greater than 70 atmospheres, and is extruded to form a shape. A fiber reinforced refractory metal composite made by this method is also described.

IPC 1-7

C22C 32/00; C22C 1/10; B22F 3/20

IPC 8 full level

C22C 1/10 (2006.01); C22C 27/02 (2006.01); C22C 47/14 (2006.01); C22C 49/10 (2006.01)

CPC (source: EP KR)

C22C 1/1084 (2013.01 - EP); C22C 27/02 (2013.01 - KR); C22C 47/14 (2013.01 - EP); C22C 49/10 (2013.01 - EP)

Citation (search report)

• [Y] US 3738817 A 19730612 - BENJAMIN J
• [Y] US 4117565 A 19781003 - ASADA CHIAKI, et al
• [Y] US 3098723 A 19630723 - MICKS WILLIAM R

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0305766 A2 19890308; EP 0305766 A3 19900404; JP S6475636 A 19890322; KR 890005288 A 19890513

DOCDB simple family (application)

EP 88112814 A 19880805; JP 22121388 A 19880902; KR 880011414 A 19880903