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
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING QUARTZ CERAMICS WITH LOWER ANNEALING TEMPERATURE | 2012 |
|
RU2513745C2 |
| METHOD OF MAKING OBJECTS FROM QUARTZ CERAMICS | 2008 |
|
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| METHOD OF PRODUCING QUARTZ CERAMIC AND ARTICLES FROM QUARTZ CERAMIC | 2008 |
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| QUARTZ CERAMICS PRODUCTS STRENGTHENING METHOD | 2017 |
|
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| METHOD TO PRODUCE PRODUCTS FROM QUARTZ CERAMICS | 2012 |
|
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| METHOD OF OBTAINING NON-CALCINATED QUARTZ CERAMICS FOR GLASS MANUFACTURING | 2013 |
|
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| METHOD OF PRODUCING HIGH DENSITY QUARTZ CERAMICS AND ARTICLES THEREOF | 2016 |
|
RU2637352C1 |
| METHOD OF HARDENING WORKPIECES FROM CORUNDUM-QUARTZ CERAMICS | 2019 |
|
RU2713541C1 |
| METHOD OF PRODUCING HIGH-EMISSIVITY QUARTZ CERAMIC | 2012 |
|
RU2509068C1 |
| METHOD OF MANUFACTURING OF SHELL OF ANTENNA FAIRING FROM QUARTZ CERAMICS AND INSTALLATION FOR ITS IMPLEMENTATION | 2019 |
|
RU2714162C1 |
