Kislitsa M. Nanocomposite material based on Al2O3 instrumental assignment, obtained by electroconsolidation

The object of research: the processes of electroconsolidation of nanopowder mixtures based on micropowder from aluminum oxide with the addition of SiC nanopowders. Research methods. Compaction was performed by electroconsolidation method. Methods of researching the structure of samples included electron microscopy, energy dispersion X-ray spectroscopy. Determination of microhardness (HV) and coefficient of crack resistance (KIC) was carried out by the method of indentation using an automatic microhardness meter. Scientific novelty: the influence of particle dispersion on the processes of sealing was first researched; it was first established that optimizing the mechanical properties of the Al2O3 ceramics is the use of nanosized particles; for the first time, the thermophysical properties of cutting materials in a wide range of temperatures have been investigated; the Wigley combined parameter for the first time used to evaluate the cutting material. The practical value of the results obtained is to increase the mechanical properties of ceramics based on Al2O3 using nanosized additives; the possibility of improving the operational properties by increasing its mechanical and thermophysical properties is established. The mathematical dependences for the preliminary calculation of the values of HV and KIC composite materials of the Al2O3-SiC system are determined. Degree of introduction: 3 patents of Ukraine (2 for invention, 1 for utility model). Scope: The developed nanocomposite material is suitable for use as cutting and structural material in difficult conditions.