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(19)

(11)

2 561 511

(13)

(51)

IPC

C30B33/00(2006-01-01)

C30B29/20(2006-01-01)

C30B29/28(2006-01-01)

B28D1/02(2006-01-01)

C30B15/34(2006-01-01)

(21) (22)

Application

2014141349/05, 2014-10-15

(24)

Start date

2014-10-15

(22)

Actual filing date

2014-10-15

(45)

Published

2015-08-27

(72)

Inventor

Vybyvanets Valerij IvanovichKonarev Sergej Anatol'EvichKravetskij Dmitrij Jakovlevich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Institut Nauchno-Proizvodstvennoe Ob"Edinenie Npo

PRODUCTION OF SINGLE-CRYSTAL CYLINDRICAL WASHERS FROM REFRACTORY COMPOUNDS Russian patent published in 2015 - IPC C30B33/00 C30B29/20 C30B29/28 B28D1/02 C30B15/34

Abstract RU 2561511 C1

FIELD: metallurgy.

SUBSTANCE: proposed process comprises growing of single crystals as tapes their depth exceeding the diameter of washers. Then, shaped tapes are cut perpendicular to their lengthwise axis to bars of square cross-section, square side being equal to tape depth. Thereafter, said bars are machined to required diameter to get cylindrical rods to be cut to washers.

EFFECT: high yield, fine structure and optical quality.

4 cl, 1 tbl

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RU 2 561 511 C1

Authors

Vybyvanets Valerij Ivanovich

Konarev Sergej Anatol'Evich

Kravetskij Dmitrij Jakovlevich

Dates

2015-08-27—Published

2014-10-15—Filed