METHOD OF PRODUCTION OF QUARTZ CRUCIBLES Russian patent published in 2008 - IPC C04B35/14 

Abstract RU 2333900 C1

FIELD: technological processes.

SUBSTANCE: invention is related to refractory industry, namely, to production of large-size quartz crucibles, which may be used in production of semi-conductor materials. Method of quartz crucibles production includes preparation of highly concentrated suspension of quartz glass, its stabilisation, casting into porous mold, drying and baking. At that after casting into porous mold additionally suspension of synthetic dioxide of silicon prepared by means of hydrolysis of silicon tetrachloride is applied onto prepared quartz crucible by method of slip casting.

EFFECT: provides possibility to manufacture quartz synthetic crucibles of wide assortment, including crucibles of large size and increase of purity of synthetic quartz crucibles.

1 ex, 2 tbl

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RU 2 333 900 C1

Authors

Shimanskij Aleksandr Fedorovich

Pivinskij Jurij Efimovich

Savchenko Natal'Ja Sergeevna

Podkopaev Oleg Ivanovich

Dates

2008-09-20Published

2006-11-30Filed