FIELD: metallurgy.
SUBSTANCE: invention relates to a method for producing an alumina system modified with oxides of zirconium and magnesium, which is a promising material for products for structural and instrumental purposes. The method includes anodic dissolution of metallic aluminum in an aqueous electrolyte solution containing 0.5 mol/L sodium chloride, 0.5 mol/L zirconium ions and 0.05-0.2 mol/L magnesium ions, in a coaxial electrolyzer at anode current density 80-160 A/m2. The resulting precipitate is then kept in solution for at least 48 hours, filtered, dried and heat treated at a temperature of 1100-1600°С.
EFFECT: invention provides the production of a modified alumina system with a given dimensional uniformity, chemical purity and phase composition, stability of the tetragonal phase of zirconium dioxide up to a temperature of 1600°С and enhanced physical and mechanical properties of a compact ceramic material.
1 cl, 2 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF CERAMIC COMPOSITE MATERIAL BASED ON ALUMINIUM AND ZIRCONIUM OXIDES | 2013 |
|
RU2549945C2 |
| METHOD FOR PRODUCING HIGHLY DISPERSED ALUMINIUM-ZIRCONIUM OXIDE SYSTEM | 2016 |
|
RU2615513C1 |
| NON-POROUS CERAMIC COMPOSITE BASED ON ZIRCONIUM OXIDE | 2023 |
|
RU2816157C1 |
| ELECTROCHEMICAL MODULAR CELL FOR PROCESSING OF ELECTROLYTES SOLUTIONS | 2007 |
|
RU2350692C1 |
| METHOD OF PRODUCING DENSE NANOCERAMICS BASED ON ALUMINUM OXIDE IN THE AlO-ZrO(YO) SYSTEM | 2018 |
|
RU2685604C1 |
| METHOD OF PRODUCING ZIRCONIUM DIOXIDE-BASED CERAMIC FOR RESTORATION DENTISTRY | 2013 |
|
RU2536593C1 |
| METHOD FOR PRODUCING GAS-TIGHT SOLID OXIDE TUBULAR ELECTROLYTE FOR BASE OF SOFC | 2017 |
|
RU2681771C2 |
| ELECTROCHEMICAL ELEMENT AND METHOD OF ITS MANUFACTURING | 2008 |
|
RU2379670C1 |
| METHOD FOR PRODUCING DISPERSED MESOPOROUS POWDERS BASED ON ALUMINUM OXIDE FOR CATALYST CARRIERS | 2018 |
|
RU2665038C1 |
| CERAMIC COMPOSITE MATERIAL | 2018 |
|
RU2710648C1 |
