FIELD: ceramics.
SUBSTANCE: invention relates to the field of producing high-density ceramics based on tetragonal zirconia and can be used as wear-resistant products, cutting tools, ceramic bearings, as well as implants for replacing bone defects. Ceramic material is obtained from a mixture containing, in mass. %, 2–5 sodium silicate, 0.5–2 iron oxide and 93–97.5 tetragonal zirconia stabilized with yttrium. Material obtained is characterized by a nanocrystalline structure with a crystal size of 50–100 nm, an open porosity of not more than 0.01 % and high mechanical characteristics: flexural strength of at least 400 MPa.
EFFECT: increase in strength of materials sintered to a dense state at a low temperature of 1,250 °C as a result of the combined use of additives of sodium silicate and iron oxide.
1 cl, 1 tbl
| Title | Year | Author | Number |
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