METHOD OF PRODUCING POWDERS OF TITANIUM-, ZIRCONIUM- AND HAFNIUM-BASED ALLOYS DOPED WITH ELEMENTS Ni, Cu, Ta, W, Re, Os, AND Ir Russian patent published in 2014 - IPC B22F9/20 C22C1/04 C22C14/00 

Abstract RU 2507034 C2

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy. It can be used in production of pyrotechnic fuses, as gas absorbers in vacuum tubes, lamps, vacuum hardware and gas cleaners. Oxide of basic element selected from Ni, Zr and Hf is mixed with alloying metal powder selected from Ni, Cu, Ta, W, Re, Os or Ir and with reducing agent powder. Produced mix is heated in kiln in atmosphere of argon to initiation of reduction reaction. Reaction product is leached, flushed and dried. Said oxide of basic element features mean particle size of 0.5-20 mcm, BET specific surface of 0.5-20 m2/g and minimum content of said oxide of 94 wt %.

EFFECT: powder with reproducible combustion time, specific surface and distribution of articles in sizes and time.

23 cl, 5 ex

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RU 2 507 034 C2

Authors

Karadzha Akhmet

Zermond Bernd

Vil'Fing Gerkhard

Dates

2014-02-20Published

2009-02-27Filed