Thermochemical Response of Camg2 Solid Fuel Upon Heating with Tio2 Powder: Experimental Findings and Theoretical Modeling

Abstract

This study focuses on the combustion behavior and the thermochemical activity of the TiO2+kCaMg2 system, where CaMg2 is used as a new type of solid fuel to convert precursor TiO2 into high-purity titanium powder. The burning parameters of the reaction mixture are measured, and the process thermodynamics and the composition of reaction phases formed after the combustion wave propagation are discussed. Moreover, a post-heat treatment on the burned sample to complete the overall reduction process is performed. A detailed analysis of the final titanium particles, encompassing their morphology, particle size distribution, oxygen concentration, and oxide layer thickness is performed. The critical role of CaMg2 fuel in the synthesis and the Ti particle growth processes is educated using experimental and molecular dynamic (MD) modeling results.

Keywords: Titanium, Combustion reaction, Thermochemical process, Solid fuel, MD simulation