Effect of Titanium Oxide Additives on the Strength of Corundum Molds

The paper discusses a method for obtaining a ceramic material composition for further use in investment casting. Prototypes of Al₂O₃ ceramics based on electrocorundum and silica-free binders were produced. The quality of the front layer was assessed. The manufactured samples were tested. It was revealed that the mechanical properties of the obtained ceramic materials did not meet the required ones, which led to measures aimed at improving the mechanical characteristics of the ceramics, in particular, the use of sintering additives.