METHOD OF PRODUCING QUARTZ CERAMICS AND ARTICLES THEREOF Russian patent published in 2017 - IPC C04B35/14 

Abstract RU 2640326 C1

FIELD: chemistry.

SUBSTANCE: present invention for producing quartz ceramics and products thereof, including the preparation of an aqueous slurry of quartz glass, moulding of ceramic blanks by the method of slip casting in plaster moulds, the impregnation of phosphoric acid with an aqueous solution and heat treatment (sintering) of the material, characterized in that the heat treatment is carried out in two stages: first at a temperature of 1150-1220°C after moulding and drying of the workpiece, and then at 900-1100°C after impregnation with 25-35% aqueous solution of phosphoric acid.

EFFECT: technological advantages, low temperature coefficient of linear expansion and high heat resistance, stability of dielectric characteristics in a wide range of temperatures, and moisture when attainment of high strength characteristics.

3 ex, 1 tbl

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RU 2 640 326 C1

Authors

Borodaj Feodosij Yakovlevich

Novikov Sergej Sergeevich

Dates

2017-12-27Published

2016-10-31Filed