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Title:
MOLYBDENUM MULTIPLE POWDER, MOLYBDENUM COMPOSITE SHEET AND THEIR PRODUCTION
Document Type and Number:
Japanese Patent JPH05186802
Kind Code:
A
Abstract:

PURPOSE: To produce a molybdenum multiple powder capable of easily obtaining a high-density sintered body by agitating a molybdenum powder in the soln. of copper salts, drying the powder and reducing the dried material to form the specified amt. of copper layer on the surface of a molybdenum matrix.

CONSTITUTION: Molybdenum powder or molybdenum oxide power is agitated in the aq. of copper salts (CuCl2), the powder is dried, and the dried material is reduced to form 20-50wt.% of copper layer on the surface of a molybdenum metrix, and a Cu-Mo composite powder is obtained. The multiple powder is press-formed at a specified pressure, and the formed product is sintered at 1100-1300°C to obtain the sintered body having ≥90% relative density. The sintered body is rolled to obtain a densified molybdenum composite sheet excellent in strength, heat conductivity, thermal expansion coefficient, etc.


Inventors:
TSUCHIYA MITSURU
TANABE NARIMITSU
MIZUKAMI MASAHIKO
ARIKAWA TADASHI
ICHIDA AKIRA
Application Number:
JP305692A
Publication Date:
July 27, 1993
Filing Date:
January 10, 1992
Export Citation:
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Assignee:
TOKYO TUNGSTEN KK
International Classes:
B22F1/02; B22F3/18; C22C27/04; B22F1/00; (IPC1-7): B22F1/00; B22F1/02; B22F3/18; C22C27/04
Domestic Patent References:
JPS4825851A1973-04-04
JPH05125407A1993-05-21
JPH04180534A1992-06-26
Attorney, Agent or Firm:
Yosuke Goto (2 outside)