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(19)

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(11)

1 800 858

(13)

A1

(51)

IPC

(21) (22)

Application

4818815/26, 1990-04-27

(22)

Actual filing date

1990-04-27

(45)

Published

1995-03-20

(72)

Inventor

Shibanova N.M.Jakovlev Ju.M.

METHOD OF PREPARING OF HIGH-TEMPERATURE SUPERCONDUCTING MONOCRYSTAL YBaCuO-δ Russian patent published in 1995 - IPC

Abstract SU 1800858 A1

FIELD: monocrystal preparing. SUBSTANCE: method involves melting of oxides of yttrium (III), copper (II) and barium (II) in corundum crucible in air at the rate 1-4 degree/h up to hardening. Isolated crystals were annealed at 420-480 C for 24-72 h under oxygen pressure 3-4 atm. Prepared crystals show temperature of superconductive transient Tc = 90 K and value of this transient is ΔTc≅ 0,5 K.. EFFECT: economy of method. 1 tbl

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SU 1 800 858 A1

Authors

Shibanova N.M.

Jakovlev Ju.M.

Dates

1995-03-20—Published

1990-04-27—Filed

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