METHOD OF MANUFACTURING CORUNDUM CERAMICS Russian patent published in 1998 - IPC

Abstract RU 2119901 C1

FIELD: construction ceramics. SUBSTANCE: method is designed to provide material for manufacturing wear and chemically resistant parts of equipment to stand high static loads. When preparing corundum ceramics batch with reduced sintering temperature (1500-1550 C), silica (92-96 wt %) is used which is mixed with glass additive-mineralizer (3-6%) preliminarily sintered at 900-1000 C and fluoride-containing additive (0.5-1%). Glass additive contains calcium, silicon, and boron oxides at 1:1:1 ratio. EFFECT: reduced sintering temperature with no loss in strength characteristics. 1 tbl, 2 ex

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RU 2 119 901 C1

Authors

Goldin B.A.

Kuznetsov I.G.

Kuznetsova L.A.

Rjabkov Ju.I.

Dates

1998-10-10—Published

1997-06-10—Filed