METHOD FOR OBTAINING HIGH-TEMPERATURE LASER-PROTOTYPED CERAMIC MATERIAL Russian patent published in 2023 - IPC C04B35/01 B22F3/105 B22F10/20 B33Y70/10 

FIELD: ceramic production.

SUBSTANCE: method for manufacturing high-temperature heat-resistant ceramic products using additive manufacturing techniques in the form of laser sintering. Manufactured parts can be used in mechanical engineering in the production of power equipment, such as gas turbines; as well as in the automotive and aviation industries in the manufacture of parts and assemblies of ceramic engines. The fraction of nickel powder with a particle size of 10-40 μm is selected, it is mixed with the powder of yttrium-stabilized zirconium dioxide in the ratio of 93.0-96.0 wt.% nickel powder and 4.0-7.0 wt.% yttrium -stabilized zirconium dioxide, preliminary mixing of the prepared mixture is carried out for 25-35 minutes, then - finishing mixing by grinding with mechanical activation in a planetary ball mill in the mode of 400-420 rpm for 100-140 minutes with reverse cycles lasting 5-6 minutes and a break for cooling the grinding set lasting 20-25 minutes in the middle of the process. The resulting mixture of powders is loaded into a laser prototyping device, layer-by-layer prototyping of the material is carried out in accordance with the layer-by-layer drawings of the product, the material is removed from the device and subsequent heat treatment is carried out in an oxidizing environment at a temperature of 970-1120°С.

EFFECT: creation of a ceramic material using additive manufacturing technique, operable in the temperature range up to 1400°C.

1 cl, 4 dwg, 1 tbl, 1 ex