FIELD: production of ceramic articles; production of materials on base of aluminum oxide for manufacture of wear-resistant ceramic parts.
SUBSTANCE: proposed method includes mixing of annealed aluminum oxide with additives of silicon, calcium, magnesium and boron oxides at simultaneous wet grinding in ball mill followed by drying of powder and annealing in air, dry grinding, molding with plasticizing agent, distillation of plasticizing agent, machining of blank and sintering. Starting charge contains the following components, mass-%: B2O3, 5.0-7.0; SiO2, 3.0-4.3; CaO, 4.0-5.7; MgO, 0.3-0.4; the remainder being Al2O3. Dried powder is annealed at temperature of 950-1050°C; sintering of blanks is carried out at temperature of 1275-1295°C.
EFFECT: facilitated procedure of method; enhanced density, strength and hardness characteristics.
4 cl, 1 tbl, 3 ex
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