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(19)

SU

(11)

1 824 024

(13)

A3

(51)

IPC

(21) (22)

Application

4943762/25, 1991-06-10

(22)

Actual filing date

1991-06-10

(45)

Published

1995-04-30

(72)

Inventor

Shevtsov N.I.Sumarokov S.Ju.Blank A.B.Tkachenko V.F.

(73)

Holder

Institut Monokristallov An Ukrainy

METHOD TO PRODUCE HIGH-TEMPERATURE OXIDE SUPERCONDUCTORS RBCuO Russian patent published in 1995 - IPC

Abstract SU 1824024 A3

FIELD: superconducting materials. SUBSTANCE: synthesized superconducting material is treated with water or organic solution of acid with total formula CnH2n+1COOH ( with n = 1 - 4 ) during 1 - 90 minutes with following ratio of ingredients in mixture, mass %: product 0.75 - 20; solvent 20 - 98; acid 0.2 - 65. Then solution is removed, product is washed by inert in respect to it solvent (acetone or low-atomic alcohol) and dried. Methanol, ethanol, acetone or water are used as solvent. EFFECT: increased quality of product due to decrease of ingredients phases share. 2 cl, 1 tbl

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SU 1 824 024 A3

Authors

Shevtsov N.I.

Sumarokov S.Ju.

Blank A.B.

Tkachenko V.F.

Dates

1995-04-30—Published

1991-06-10—Filed

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