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2 007 273

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C1

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IPC

(21) (22)

Application

4945433/02, 1991-06-13

(22)

Actual filing date

1991-06-13

(45)

Published

1994-02-15

(72)

Inventor

Bagramov R.Kh.Filonenko V.P.Khvostantsev L.G.

(73)

Holder

Institut Fiziki Vysokikh Davlenij Im.L.F.Vereshchagina Ran

METHOD FOR MANUFACTURING SINTERED ARTICLES BASED ON TUNGSTEN ADDED WITH NICKEL Russian patent published in 1994 - IPC

Abstract RU 2007273 C1

FIELD: sintering. SUBSTANCE: highly dispersed tungsten powders with particles of 0.05-0.5 micron are used as an initial material. After adding nickel the mixture is compacted by hydrostatic pressure of 0.2-1.0 GPa and preliminary sintered in vacuum at temperature of 1300-1500 C. Method allows to produce large high-density tungsten articles with residual porosity no less than 2.0% . EFFECT: improved density. 1 tbl

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RU 2 007 273 C1

Authors

Bagramov R.Kh.

Filonenko V.P.

Khvostantsev L.G.

Dates

1994-02-15—Published

1991-06-13—Filed

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