MODELING OF THERMAL STATE OF THE CELL OF TECHNOLOGICAL UNIT DURING ITS DESIGN FOR SINTERING UNDER PRESSURE OF BORON CARBIDE-BASED MATERIALS

Abstract

The construction of the cell of technological unit for high-speed sintering under pressure (HSSP) of boron carbide based materials is proposed. Different variants of cell construction are considered. Computer simulation of the thermal state of cell during HSSP of powder boron carbide based samples was performed. It is shown that by varying the sizes and materials of the cell elements, it is possible to significantly localize the area of high temperatures and ensure the thermal stability of the power elements of the cell during the sintering process. According to the simulation results, the cell construction were implemented for the HSSP process of boron carbide based materials at pressures of 100–400 MPa and temperatures of 1900–2200 K. The results of predicting the thermal stability of the cell power elements are in agreement with the results of laboratory experiments.