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2 525 892

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(51)

IPC

C04B35/14(2006-01-01)

C04B41/46(2006-01-01)

(21) (22)

Application

2013130201/03, 2013-07-01

(24)

Start date

2013-07-01

(22)

Actual filing date

2013-07-01

(45)

Published

2014-08-20

(72)

Inventor

Evstrop'Ev Sergej KonstantinovichVolynkin Valerij MikhajlovichShashkin Aleksandr ViktorovichSokolova Svetlana Evgen'Evna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo I Tekhnologicheskij Institut Opticheskogo Materialovedenija Vserossijskogo Nauchnogo Tsentra Opticheskij Institut Im. S.I. Vavilova" Vnts Im. S.I. Vavilova")

METHOD OF OBTAINING QUARTZ CERAMICS Russian patent published in 2014 - IPC C04B35/14 C04B41/46

Abstract RU 2525892 C1

FIELD: chemistry.

SUBSTANCE: method of obtaining quartz ceramics includes production of slip from broken quartz glass, formation of a raw material blank by a method of casting in gypsum moulds, soaking the raw material blank with a liquid soaking solution, drying the soaked blank of quartz ceramics and following thermal processing. The soaking solution contains a mixture of Al(NO₃)₃, tetraethoxysilane, ethanol and water, the molar ratio of components provides in the soaking solution pH≥4, and thermal processing of the soaked quartz ceramics blank is realised at a temperature of 950-1200°C.

EFFECT: increase of strength and heat resistance of the products.

2 cl, 6 dwg, 2 tbl, 1 ex

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RU 2 525 892 C1

Authors

Evstrop'Ev Sergej Konstantinovich

Volynkin Valerij Mikhajlovich

Shashkin Aleksandr Viktorovich

Sokolova Svetlana Evgen'Evna

Dates

2014-08-20—Published

2013-07-01—Filed